{"id":1170,"date":"2022-12-21T00:24:00","date_gmt":"2022-12-21T00:24:00","guid":{"rendered":"https:\/\/science.gsfc.nasa.gov\/stella\/?p=1170"},"modified":"2025-06-09T22:43:05","modified_gmt":"2025-06-09T22:43:05","slug":"field-measurements-of-panels-and-grass-collected-at-gsfc-on-december-21-2022","status":"publish","type":"post","link":"https:\/\/science.gsfc.nasa.gov\/stella\/field-measurements-of-panels-and-grass-collected-at-gsfc-on-december-21-2022\/","title":{"rendered":"Field Measurements of Panels and Grass collected at GSFC on December 21, 2022"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1170\" class=\"elementor elementor-1170\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9582598 e-flex e-con-boxed e-con e-parent\" data-id=\"9582598\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1bfec06 elementor-widget elementor-widget-heading\" data-id=\"1bfec06\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Field Measurements of Panels and Grass collected at GSFC on December 21, 2022<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1b970f0 e-flex e-con-boxed e-con e-parent\" data-id=\"1b970f0\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-844e503 e-con-full e-flex e-con e-child\" data-id=\"844e503\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-600b3f2 e-con-full e-flex e-con e-child\" data-id=\"600b3f2\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-727da12 elementor-widget elementor-widget-text-editor\" data-id=\"727da12\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Preliminary Results Created by Dr. Petya Campbell, STELLA \u00a0Lead Scientist<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2eb1e87 e-con-full e-flex e-con e-child\" data-id=\"2eb1e87\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e724d77 elementor-widget__width-inherit elementor-widget elementor-widget-premium-addon-image-button\" data-id=\"e724d77\" data-element_type=\"widget\" data-widget_type=\"premium-addon-image-button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t<a class=\"premium-image-button-none premium-image-button premium-btn-sm premium-image-button-none\" href=\"\/wp-content\/uploads\/2025\/05\/2022-20240120T201431Z-001.zip\">\n\t\t\t<div class=\"premium-image-button-text-icon-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<svg class=\"premium-svg-nodraw premium-drawable-icon e-font-icon-svg e-fas-file-excel\" aria-hidden=\"true\" viewBox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224 136V0H24C10.7 0 0 10.7 0 24v464c0 13.3 10.7 24 24 24h336c13.3 0 24-10.7 24-24V160H248c-13.2 0-24-10.8-24-24zm60.1 106.5L224 336l60.1 93.5c5.1 8-.6 18.5-10.1 18.5h-34.9c-4.4 0-8.5-2.4-10.6-6.3C208.9 405.5 192 373 192 373c-6.4 14.8-10 20-36.6 68.8-2.1 3.9-6.1 6.3-10.5 6.3H110c-9.5 0-15.2-10.5-10.1-18.5l60.3-93.5-60.3-93.5c-5.2-8 .6-18.5 10.1-18.5h34.8c4.4 0 8.5 2.4 10.6 6.3 26.1 48.8 20 33.6 36.6 68.5 0 0 6.1-11.7 36.6-68.5 2.1-3.9 6.2-6.3 10.6-6.3H274c9.5-.1 15.2 10.4 10.1 18.4zM384 121.9v6.1H256V0h6.1c6.4 0 12.5 2.5 17 7l97.9 98c4.5 4.5 7 10.6 7 16.9z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t<span >\n\t\t\t\t\t\tDownload STELLA Field Data 12\/21\/2022 XLSX\t\t\t\t\t<\/span>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t<\/a>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-586a67a e-flex e-con-boxed e-con e-parent\" data-id=\"586a67a\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-23482ee elementor-widget elementor-widget-image\" data-id=\"23482ee\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/STELLAs_Dec_21_22_v2-1.png\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE4MywidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvU1RFTExBc19EZWNfMjFfMjJfdjItMS5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"843\" height=\"678\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLAs_Dec_21_22_v2-1-1024x824.png\" class=\"attachment-large size-large wp-image-1183\" alt=\"STELLA measurement plots\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLAs_Dec_21_22_v2-1-1024x824.png 1024w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLAs_Dec_21_22_v2-1-300x241.png 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLAs_Dec_21_22_v2-1-768x618.png 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLAs_Dec_21_22_v2-1-1536x1235.png 1536w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLAs_Dec_21_22_v2-1.png 1798w\" sizes=\"(max-width: 843px) 100vw, 843px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7180be elementor-widget elementor-widget-text-editor\" data-id=\"c7180be\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In the field study points on the grass were marked where measurements from the ASD and STELLA were to be acquired.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-57df7c0 elementor-widget elementor-widget-heading\" data-id=\"57df7c0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Calibration Panels Measurements<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a421c37 e-flex e-con-boxed e-con e-parent\" data-id=\"a421c37\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-367b678 e-con-full e-flex e-con e-child\" data-id=\"367b678\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e3b64a0 elementor-widget elementor-widget-image\" data-id=\"e3b64a0\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/CalPanels1.png\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE4NCwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvQ2FsUGFuZWxzMS5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"843\" height=\"490\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CalPanels1-1024x595.png\" class=\"attachment-large size-large wp-image-1184\" alt=\"Calibration Panel readings\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CalPanels1-1024x595.png 1024w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CalPanels1-300x174.png 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CalPanels1-768x446.png 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CalPanels1.png 1275w\" sizes=\"(max-width: 843px) 100vw, 843px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8884654 elementor-widget elementor-widget-image\" data-id=\"8884654\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/CalPanels2.png\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE4NywidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvQ2FsUGFuZWxzMi5wbmcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"708\" height=\"670\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CalPanels2.png\" class=\"attachment-large size-large wp-image-1187\" alt=\"Calibration Panel readings\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CalPanels2.png 708w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CalPanels2-300x284.png 300w\" sizes=\"(max-width: 708px) 100vw, 708px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e0d2fce e-con-full e-flex e-con e-child\" data-id=\"e0d2fce\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-30f010b elementor-widget elementor-widget-image\" data-id=\"30f010b\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/Calibration_Panels_Jesse.png\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Jesse Barber is taking measurements over scuffed polystyrene (STELLA panel). Photo credit: Mike Taylor\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE4NiwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvQ2FsaWJyYXRpb25fUGFuZWxzX0plc3NlLnBuZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"434\" height=\"696\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Calibration_Panels_Jesse.png\" class=\"attachment-large size-large wp-image-1186\" alt=\"Jesse Barber with STELLA measuring calibration panels\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Calibration_Panels_Jesse.png 434w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Calibration_Panels_Jesse-187x300.png 187w\" sizes=\"(max-width: 434px) 100vw, 434px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Jesse Barber is taking measurements over scuffed polystyrene (STELLA panel). Photo credit: Mike Taylor<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9200e9d e-flex e-con-boxed e-con e-parent\" data-id=\"9200e9d\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a636df4 elementor-widget elementor-widget-text-editor\" data-id=\"a636df4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The STELLA panel represents well the 475-2500 nm region, and does not represent well the 350-475 nm region<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-51f28c9 elementor-widget elementor-widget-heading\" data-id=\"51f28c9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">STELLA sensor response\nfunctions (RSR) <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c595d11 elementor-widget elementor-widget-image\" data-id=\"c595d11\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/STELLA_RSR.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE4NSwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvU1RFTExBX1JTUi5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"575\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA_RSR.jpg\" class=\"attachment-large size-large wp-image-1185\" alt=\"Relative Spectral Response\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA_RSR.jpg 819w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA_RSR-300x211.jpg 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA_RSR-768x539.jpg 768w\" sizes=\"(max-width: 819px) 100vw, 819px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-46a72ea elementor-widget__width-inherit elementor-widget elementor-widget-premium-addon-image-button\" data-id=\"46a72ea\" data-element_type=\"widget\" data-widget_type=\"premium-addon-image-button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n\t\t<a class=\"premium-image-button-none premium-image-button premium-btn-sm premium-image-button-none\" href=\"\/wp-content\/uploads\/2025\/05\/Stella_RSR_Calculator.xlsx\">\n\t\t\t<div class=\"premium-image-button-text-icon-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<svg class=\"premium-svg-nodraw premium-drawable-icon e-font-icon-svg e-fas-file-excel\" aria-hidden=\"true\" viewBox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224 136V0H24C10.7 0 0 10.7 0 24v464c0 13.3 10.7 24 24 24h336c13.3 0 24-10.7 24-24V160H248c-13.2 0-24-10.8-24-24zm60.1 106.5L224 336l60.1 93.5c5.1 8-.6 18.5-10.1 18.5h-34.9c-4.4 0-8.5-2.4-10.6-6.3C208.9 405.5 192 373 192 373c-6.4 14.8-10 20-36.6 68.8-2.1 3.9-6.1 6.3-10.5 6.3H110c-9.5 0-15.2-10.5-10.1-18.5l60.3-93.5-60.3-93.5c-5.2-8 .6-18.5 10.1-18.5h34.8c4.4 0 8.5 2.4 10.6 6.3 26.1 48.8 20 33.6 36.6 68.5 0 0 6.1-11.7 36.6-68.5 2.1-3.9 6.2-6.3 10.6-6.3H274c9.5-.1 15.2 10.4 10.1 18.4zM384 121.9v6.1H256V0h6.1c6.4 0 12.5 2.5 17 7l97.9 98c4.5 4.5 7 10.6 7 16.9z\"><\/path><\/svg>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t<span >\n\t\t\t\t\t\tDownload STELLA-1.1 Relative Spectral Response Calculator\t\t\t\t\t<\/span>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t<\/a>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f7e8b54 elementor-widget elementor-widget-text-editor\" data-id=\"f7e8b54\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>STELLA sensor response functions (RSR) used to convolve the ASD measurements to the STELLA sensor bands.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-838754d elementor-widget elementor-widget-heading\" data-id=\"838754d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Comparing Large Calibration Panel Measurements using ASD, STELLA 207 and 655<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b0bb47 elementor-widget elementor-widget-image\" data-id=\"7b0bb47\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_measurements.png\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTIwMiwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvTGFyZ2VfQ2FsaWJyYXRpb25fUGFuZWxfbWVhc3VyZW1lbnRzLnBuZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"843\" height=\"640\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_measurements-1024x777.png\" class=\"attachment-large size-large wp-image-1202\" alt=\"Crop Canopy Reflectance Convolved to STELLA\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_measurements-1024x777.png 1024w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_measurements-300x228.png 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_measurements-768x583.png 768w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_measurements.png 1229w\" sizes=\"(max-width: 843px) 100vw, 843px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f9bca1 elementor-widget elementor-widget-text-editor\" data-id=\"8f9bca1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li class=\"O0\">The STELLA panel and the ASD panel provide strongly and linearly correlated data.<\/li><li class=\"O0\">The STELLA panel underestimates the values obtained with the Large panel.<\/li><li class=\"O0\">STELLA 207 and 655 provide comparable measurements of the Panels<\/li><li class=\"O0\">The ASD and STELLA panel measurements are strongly correlated, however the outputs are significantly different<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b09a153 elementor-widget elementor-widget-heading\" data-id=\"b09a153\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Large Calibration Panel Radiance comparing STELLA 207 and 655 vs. ASD<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8477d80 elementor-widget elementor-widget-image\" data-id=\"8477d80\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_radiance.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTIwMSwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvTGFyZ2VfQ2FsaWJyYXRpb25fUGFuZWxfcmFkaWFuY2UuanBnIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"815\" height=\"628\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_radiance.jpg\" class=\"attachment-large size-large wp-image-1201\" alt=\"Large Calibration Panel Radiance comparing Stella 207 and 655 vs. ASD\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_radiance.jpg 815w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_radiance-300x231.jpg 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Large_Calibration_Panel_radiance-768x592.jpg 768w\" sizes=\"(max-width: 815px) 100vw, 815px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bd12ec elementor-widget elementor-widget-text-editor\" data-id=\"6bd12ec\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li>STELLA\u2019s VIS and NIR radiance relationships to ASD differ<\/li><li>The NIR STELLA and ASD bands are better related in radiance space as compared to the VIS<\/li><li>In the VIS the relation of the two STELLA instruments to the ASD radiance slightly differs, while in the NIR does not<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-845b4d4 elementor-widget elementor-widget-heading\" data-id=\"845b4d4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Grass Measurements using STELLA 207 and 655<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-15766fd e-flex e-con-boxed e-con e-parent\" data-id=\"15766fd\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-c015094 e-con-full e-flex e-con e-child\" data-id=\"c015094\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c6742e2 elementor-widget elementor-widget-image\" data-id=\"c6742e2\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/STELLA207graph.png\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTIwMCwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvU1RFTExBMjA3Z3JhcGgucG5nIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"843\" height=\"705\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA207graph.png\" class=\"attachment-large size-large wp-image-1200\" alt=\"STELLA 207 graph\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA207graph.png 872w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA207graph-300x251.png 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA207graph-768x642.png 768w\" sizes=\"(max-width: 843px) 100vw, 843px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-52fa5d0 e-con-full e-flex e-con e-child\" data-id=\"52fa5d0\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-42259ca elementor-widget elementor-widget-image\" data-id=\"42259ca\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/STELLA655graph.png\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE5OSwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvU1RFTExBNjU1Z3JhcGgucG5nIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"843\" height=\"696\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA655graph.png\" class=\"attachment-large size-large wp-image-1199\" alt=\"STELLA 655 graph\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA655graph.png 908w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA655graph-300x248.png 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA655graph-768x634.png 768w\" sizes=\"(max-width: 843px) 100vw, 843px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-edbec60 e-flex e-con-boxed e-con e-parent\" data-id=\"edbec60\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4972a52 elementor-widget elementor-widget-heading\" data-id=\"4972a52\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Comparing Grass Measurements using\nSTELLA 207 and 655 (all data)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c1a8c5c elementor-widget elementor-widget-image\" data-id=\"c1a8c5c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/Comparing_Grass_Measurements_207and-655_all_data.png\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE5OCwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvQ29tcGFyaW5nX0dyYXNzX01lYXN1cmVtZW50c18yMDdhbmQtNjU1X2FsbF9kYXRhLnBuZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"843\" height=\"810\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Comparing_Grass_Measurements_207and-655_all_data.png\" class=\"attachment-large size-large wp-image-1198\" alt=\"Comparing Grass Measurements using STELLA 207 and 655 (all data)\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Comparing_Grass_Measurements_207and-655_all_data.png 927w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Comparing_Grass_Measurements_207and-655_all_data-300x288.png 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Comparing_Grass_Measurements_207and-655_all_data-768x738.png 768w\" sizes=\"(max-width: 843px) 100vw, 843px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0dfd81d elementor-widget elementor-widget-text-editor\" data-id=\"0dfd81d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>STELLA 207 and 655 provide comparable measurements of the grass targets. The variations are likely due to the differences in the field of view of the instruments and the natural variation in the grass.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54ef76f elementor-widget elementor-widget-heading\" data-id=\"54ef76f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Comparing Grass Measurements using STELLA 207 and 655 (means and StDev)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-24c806a e-flex e-con-boxed e-con e-parent\" data-id=\"24c806a\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-d420714 e-con-full e-flex e-con e-child\" data-id=\"d420714\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a862a0c elementor-widget elementor-widget-image\" data-id=\"a862a0c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/Grass_ref.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE5NywidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvR3Jhc3NfcmVmLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"611\" height=\"555\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Grass_ref.jpg\" class=\"attachment-large size-large wp-image-1197\" alt=\"Grass reflectance\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Grass_ref.jpg 611w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Grass_ref-300x273.jpg 300w\" sizes=\"(max-width: 611px) 100vw, 611px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b2b66e8 e-con-full e-flex e-con e-child\" data-id=\"b2b66e8\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b0919f elementor-widget elementor-widget-image\" data-id=\"3b0919f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/Grass_temp.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE5NiwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvR3Jhc3NfdGVtcC5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"490\" height=\"444\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Grass_temp.jpg\" class=\"attachment-large size-large wp-image-1196\" alt=\"Grass Temperature\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Grass_temp.jpg 490w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Grass_temp-300x272.jpg 300w\" sizes=\"(max-width: 490px) 100vw, 490px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fb9fde7 e-flex e-con-boxed e-con e-parent\" data-id=\"fb9fde7\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ea6e376 elementor-widget elementor-widget-text-editor\" data-id=\"ea6e376\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>STELLA 207 and 655 provide comparable reflectance and thermal measurements.<span class=\"Apple-converted-space\">\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bb3c40f elementor-widget elementor-widget-heading\" data-id=\"bb3c40f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Grass ASD reflectance measurements<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a69e1b8 elementor-widget elementor-widget-image\" data-id=\"a69e1b8\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/Grass_ASD_reflectance_measurements.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE5NSwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvR3Jhc3NfQVNEX3JlZmxlY3RhbmNlX21lYXN1cmVtZW50cy5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"747\" height=\"524\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Grass_ASD_reflectance_measurements.jpg\" class=\"attachment-large size-large wp-image-1195\" alt=\"Grass ASD reflectance measurements\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Grass_ASD_reflectance_measurements.jpg 747w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/Grass_ASD_reflectance_measurements-300x210.jpg 300w\" sizes=\"(max-width: 747px) 100vw, 747px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c815588 elementor-widget elementor-widget-heading\" data-id=\"c815588\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Grass ASD reflectance measurements convolved to STELLA bands\u200b<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e887f8a elementor-widget elementor-widget-image\" data-id=\"e887f8a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/GrassASDreflectance_measurements_convolved_STELLA_bands.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE5NCwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvR3Jhc3NBU0RyZWZsZWN0YW5jZV9tZWFzdXJlbWVudHNfY29udm9sdmVkX1NURUxMQV9iYW5kcy5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"843\" height=\"510\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/GrassASDreflectance_measurements_convolved_STELLA_bands.jpg\" class=\"attachment-large size-large wp-image-1194\" alt=\"Grass ASD reflectance measurements convolved to Stella bands\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/GrassASDreflectance_measurements_convolved_STELLA_bands.jpg 925w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/GrassASDreflectance_measurements_convolved_STELLA_bands-300x182.jpg 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/GrassASDreflectance_measurements_convolved_STELLA_bands-768x465.jpg 768w\" sizes=\"(max-width: 843px) 100vw, 843px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-01c78f3 elementor-widget elementor-widget-heading\" data-id=\"01c78f3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Comparing grass reflectance (band means and StDev ) collected with STELLA 207 (black) and 655 (red) to ASD reflectance for the same bands<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-03a2cce elementor-widget elementor-widget-image\" data-id=\"03a2cce\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/CompareGrassReflectance.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE5MywidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvQ29tcGFyZUdyYXNzUmVmbGVjdGFuY2UuanBnIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"567\" height=\"501\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CompareGrassReflectance.jpg\" class=\"attachment-large size-large wp-image-1193\" alt=\"Comparing grass reflectance (band means and StDev )collected with Stella 207 (black) and 655 (red) to ASD reflectance for the same bands\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CompareGrassReflectance.jpg 567w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CompareGrassReflectance-300x265.jpg 300w\" sizes=\"(max-width: 567px) 100vw, 567px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb388a0 elementor-widget elementor-widget-heading\" data-id=\"cb388a0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Vegetation Indices NDVI and NIRv for Grass comparing STELLA 207 and 655 vs. ASD ( means and StDev)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-070d05a e-flex e-con-boxed e-con e-parent\" data-id=\"070d05a\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-073e9b9 e-con-full e-flex e-con e-child\" data-id=\"073e9b9\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ba8230a elementor-widget elementor-widget-image\" data-id=\"ba8230a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/STELLA_NDVI.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE5MiwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvU1RFTExBX05EVkkuanBnIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"611\" height=\"577\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA_NDVI.jpg\" class=\"attachment-large size-large wp-image-1192\" alt=\"STELLA NDVI graph\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA_NDVI.jpg 611w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA_NDVI-300x283.jpg 300w\" sizes=\"(max-width: 611px) 100vw, 611px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-511756a e-con-full e-flex e-con e-child\" data-id=\"511756a\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-12a2c53 elementor-widget elementor-widget-image\" data-id=\"12a2c53\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/STELLA_NIRv.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE5MSwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvU1RFTExBX05JUnYuanBnIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"611\" height=\"577\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA_NIRv.jpg\" class=\"attachment-large size-large wp-image-1191\" alt=\"STELLA NIRv\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA_NIRv.jpg 611w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/STELLA_NIRv-300x283.jpg 300w\" sizes=\"(max-width: 611px) 100vw, 611px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a918853 e-flex e-con-boxed e-con e-parent\" data-id=\"a918853\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6d22f07 elementor-widget elementor-widget-heading\" data-id=\"6d22f07\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">SCOPE Simulation of Crop Canopy Reflectance<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4b1ef85 elementor-widget elementor-widget-image\" data-id=\"4b1ef85\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/SCOPE_sim_crop_canopy_ref.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE5MCwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvU0NPUEVfc2ltX2Nyb3BfY2Fub3B5X3JlZi5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"812\" height=\"560\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/SCOPE_sim_crop_canopy_ref.jpg\" class=\"attachment-large size-large wp-image-1190\" alt=\"SCOPE Simulation of Crop Canopy Reflectance\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/SCOPE_sim_crop_canopy_ref.jpg 812w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/SCOPE_sim_crop_canopy_ref-300x207.jpg 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/SCOPE_sim_crop_canopy_ref-768x530.jpg 768w\" sizes=\"(max-width: 812px) 100vw, 812px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-161af7b elementor-widget elementor-widget-text-editor\" data-id=\"161af7b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<table border=\"1\">\n<tbody>\n<tr>\n<td><strong>Nitrogen (N)<\/strong><\/td>\n<td><span style=\"color: #ff0000;\"><strong>0<\/strong><\/span><\/td>\n<td><span style=\"color: #808000;\"><strong>50<\/strong><\/span><\/td>\n<td><span style=\"color: #339966;\"><strong>100<\/strong><\/span><\/td>\n<td><span style=\"color: #3366ff;\"><strong>150<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Cab<\/strong><\/td>\n<td><span style=\"color: #ff0000;\"><strong>24.07<\/strong><\/span><\/td>\n<td><span style=\"color: #808000;\"><strong>47.68<\/strong><\/span><\/td>\n<td><span style=\"color: #339966;\"><strong>44.74<\/strong><\/span><\/td>\n<td><span style=\"color: #3366ff;\"><strong>52.54<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Vcmo<\/strong><\/td>\n<td><span style=\"color: #ff0000;\"><strong>23.15<\/strong><\/span><\/td>\n<td><span style=\"color: #808000;\"><strong>23.15<\/strong><\/span><\/td>\n<td><span style=\"color: #339966;\"><strong>23.15<\/strong><\/span><\/td>\n<td><span style=\"color: #3366ff;\"><strong>23.15<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>LAI<\/strong><\/td>\n<td><span style=\"color: #ff0000;\"><strong>3.207<\/strong><\/span><\/td>\n<td><span style=\"color: #808000;\"><strong>3.977<\/strong><\/span><\/td>\n<td><span style=\"color: #339966;\"><strong>3.993<\/strong><\/span><\/td>\n<td><span style=\"color: #3366ff;\"><strong>4.167<\/strong><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-69b073b elementor-widget elementor-widget-heading\" data-id=\"69b073b\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Crop Canopy Reflectance Convolved to STELLA\u200b<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d0bb13a elementor-widget elementor-widget-image\" data-id=\"d0bb13a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/science.gsfc.nasa.gov\/stella\/\/wp-content\/uploads\/2025\/05\/CropCanopyReflectanceConvolvedStella.jpg\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE4OSwidXJsIjoiaHR0cHM6XC9cL3NjaWVuY2UuZ3NmYy5uYXNhLmdvdlwvc3RlbGxhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wNVwvQ3JvcENhbm9weVJlZmxlY3RhbmNlQ29udm9sdmVkU3RlbGxhLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"801\" height=\"545\" src=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CropCanopyReflectanceConvolvedStella.jpg\" class=\"attachment-large size-large wp-image-1189\" alt=\"Crop Canopy Reflectance Convolved to STELLA\" srcset=\"https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CropCanopyReflectanceConvolvedStella.jpg 801w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CropCanopyReflectanceConvolvedStella-300x204.jpg 300w, https:\/\/science.gsfc.nasa.gov\/stella\/wp-content\/uploads\/2025\/05\/CropCanopyReflectanceConvolvedStella-768x523.jpg 768w\" sizes=\"(max-width: 801px) 100vw, 801px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Field Measurements of Panels and Grass collected at GSFC on December 21, 2022 Preliminary Results Created by Dr. Petya Campbell, STELLA Lead Scientist Download STELLA&hellip;<\/p>\n","protected":false},"author":2,"featured_media":1178,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[73,7,24],"tags":[],"class_list":["post-1170","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-field-studies","category-instruments","category-stella-1"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Field Measurements of Panels and Grass collected at GSFC on December 21, 2022 - STELLA<\/title>\n<meta name=\"description\" content=\"Field Studies\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/science.gsfc.nasa.gov\/stella\/field-measurements-of-panels-and-grass-collected-at-gsfc-on-december-21-2022\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Field Measurements of Panels and Grass collected at GSFC on December 21, 2022 - STELLA\" \/>\n<meta property=\"og:description\" content=\"Field Studies\" \/>\n<meta property=\"og:url\" content=\"https:\/\/science.gsfc.nasa.gov\/stella\/field-measurements-of-panels-and-grass-collected-at-gsfc-on-december-21-2022\/\" \/>\n<meta property=\"og:site_name\" content=\"STELLA\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-21T00:24:00+00:00\" \/>\n<meta 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