John Gipson recieved his PhD in theoretical particle physics from Yale University in 1982. He worked at Virginia Tech as post-doc and Assistant Professor from 1982-1984.
From 1985 through 1991 he worked at Interferometrics, Inc as a Senior Scienist. He developed a technique to make holographic measurements of satellite dishes using radio waves. He also developed a technique using interferometry to determine the location of ground based transmitters causing interference with communicatino satellites and was awarded a patent for the system. This system is still in use.
He has been involved periodically with the Goddard VLBI group since 1986, and in 1990 became a permanent member of the group. Since 2002 he has been the senior contractor on the support contract that provides VLBI analysis operations support to NASA. Within VLBI he has a special interest in analysis.
1982 Ph D Theoretical Physics, Yale University
1977 MS Physics, Yale University
Earth Orientation
John Gipson has a special interest in the measurement and modeling of Earth Orientation Parameter (EOP) variation, and is the chair of the IERS working group on the diurnal and semi-diurnal EOP. He is the chapter editor of the EOP chapter in the upcoming IERS conventions.
IVS Analysys Coordinator. In charge of ensuring the quality and timeliness of IVS products, ans serving as a liason to other techniques.
IVS Directing Board. The IVS Analysis Coordinator is in permanent member of the Directing Board.
IVS Working Group 4 on VLBI Data Structures,Chair. This working group was tasked with coming up with a data structure and format that would handle current and future VLBI data. The working group designed and tested the vgosDB format which is now the default for geodetic VLBI data.
IVS Working Group 7 on Satellite Observations.
IVS Working Group 8 on Galactic Aberration. The rotation of the solare system about the galactic center leads to an apparent change in the position of VLBI sources. This effect is called Galactic Aberration, and this working group was set up to make recommendatins on how to model and incorporate this effect in VLBI.
IERS Working Group (chair) on sub-diurnal Earth Orienation Parametger Variation. This working group was established to make recommendations about which EOP model to use in geodetic analysis. It includes representatives of all the techniques.
Refereed
Behrend, D., C. C. Thomas, J. M. Gipson, E. Himwich, and K. Le Bail. 2020. "On the organization of CONT17."
Journal of Geodesy,
94
(10):
[10.1007/s00190-020-01436-x]
Baver, K. D., and J. M. Gipson. 2020. "Balancing Source Strength and Sky Coverage in IVS-INT01 Scheduling."
Journal of Geodesy,
94
(18):
[10.1007/s00190-020-01343-1]
Merkowitz, S. M., S. Bolotin, P. Elosegui, et al. 2019. "Modernizing and expanding the NASA Space Geodesy Network to meet future geodetic requirements."
Journal of Geodesy,
93
(11):
2263-2273
[10.1007/s00190-018-1204-5]
MacMillan, D. S., A. Fey, J. M. Gipson, et al. 2019. "Galactocentric acceleration in VLBI analysis."
Astronomy & Astrophysics,
630:
A93
[10.1051/0004-6361/201935379]
Niell, A., J. Barrett, A. Burns, et al. 2018. "Demonstration of a Broadband Very Long Baseline Interferometer System: A New Instrument for High-Precision Space Geodesy."
Radio Science,
63:
1263-1291
[10.1029/2018rs006617]
Uunila, M., K. D. Baver, J. M. Gipson, T. Nilsson, and H. Krasna. 2016. "Comparison of VieVS and Solve UT1 results from VLBI measurements."
Journal of Geodesy and Geoinformation,
3
(1):
1-8
[Full Text (Link)]
Gipson, J. M., and K. D. Baver. 2016. "Improvement of the IVS-INT01 sessions by source selection: development and evaluation of the maximal source strategy."
J. Geodesy,
90
(3):
287-303
[10.1007/s00190-015-0873-6]
Le Bail, K., J. M. Gipson, D. Gordon, et al. 2016. "IVS Observation of ICRF2-Gaia Transfer Sources."
The Astronomical Journal,
151
(3):
79
[10.3847/0004-6256/151/3/79]
Fey, A. L., D. Gordon, C. S. Jacobs, et al. 2015. "The Second Realization of the International Celestial Reference Frame by Very Long Baseline Interferometry."
The Astronomical Journal,
150
(2):
58
[10.1088/0004-6256/150/2/58]
Eriksson, D., D. S. MacMillan, and J. M. Gipson. 2014. "Tropospheric delay ray tracing applied in VLBI analysis."
Journal of Geophysical Research: Solid Earth,
119
(12):
9156-9170
[10.1002/2014jb011552]
Le Bail, K., J. M. Gipson, and D. S. Macmillan. 2014. "Quantifying the Correlation Between the MEI and LOD Variations by Decomposing LOD with Singular Spectrum Analysis."
International Association of Geodesy Symposia, "Earth on the Edge: Science for a Sustainable Planet", Melbourne, Australia, June 28 - July 2, 2011,
139:
Berlin, Germany: 473-477,
ISBN: 978-3-642-37222-3.
[10.1007/978-3-642-37222-3_63]
Gordon, D., C. Ma, D. MacMillan, et al. 2013. "Effects of ICRF2 on the TRF, CRF, and EOP."
International Association of Geodesy Symposia,
138 :
Berlin, Germany: 175-179,
ISBN: 978-3-642-32998-2.
[10.1007/978-3-642-32998-2_26]
Gordon, D., K. L. Bail, C. Ma, et al. 2013. "The Construction of ICRF2 and Its Impact on the Terrestrial Reference Frame."
Earth on the Edge: Science for a Sustainable Planet,
185-188
[10.1007/978-3-642-37222-3_23]
Ma, C., D. MacMillan, S. Bolotin, et al. 2012. "Comparison of Realizations of the Terrestrial Reference Frame."
International Association of Geodesy Symposia,
138 :
51-56
[10.1007/978-3-642-32998-2_9]
Gordon, D., C. Ma, D. S. Macmillan, et al. 2012. "Effects of ICRF2 on the TRF, CRF, and EOP."
REFERENCE FRAMES FOR APPLICATIONS IN GEOSCIENCES,
International Association of Geodesy Symposia, "IAG Symposium on Reference Frames for Applications in Geosciences (REFAG)", Marne-la-Vallée, France, Oct: 4-8, 2010,
138:
Berlin, Germany: 175-179,
ISBN: 978-3-642-32998-2.
[ 10.1007/978-3-642-32998-2_26]
Gipson, J. M., D. Behrend, D. Gordon, et al. 2010. "Coordinating, Scheduling, Processing and Analyzing IYA09."
International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.:,
NASA CP/2010-215864:
Greenbelt, Maryland, U.S.A.: 90-94
[Full Text (Link)]
Petrov, L., D. Gordon, J. Gipson, et al. 2009. "Precise geodesy with the Very Long Baseline Array."
Journal of Geodesy,
83
(9):
859-876
[10.1007/s00190-009-0304-7]
Gipson, J., and C. Ma. 1998. "Site displacement due to variation in Earth rotation."
J. Geophysical Research - Solid Earth,
103
(B4):
7337-7350
[ 10.1029/98JB00149]
Ma, C., and J. Gipson. 1998. "VLBI applied to reference frames."
IAG/IGGOS,
Munich:
Clark, T., C. Ma, J. Ryan, et al. 1998. "Earth rotation yields valuable information about the dynamics of the Earth system."
EOS Trans Am Geophys Union,
79:
205-206
[ 10.1029/98EO00149]
Mathews, P. M., V. Dehant, and J. M. Gipson. 1997. "Tidal station displacements."
Journal of Geophysical Research: Solid Earth,
102
(B9):
20469-20477
[10.1029/97jb01515]
Gipson, J. M. 1996. "Very long baseline interferometry determination of neglected tidal terms in high-frequency Earth orientation variation."
Journal of Geophysical Research: Solid Earth,
101
(B12):
28051-28064
[10.1029/96jb02292]
Molnar, P., and J. M. Gipson. 1996. "A bound on the rheology of continental lithosphere using very long baseline interferometry: The velocity of south China with respect to Eurasia."
Journal of Geophysical Research: Solid Earth,
101
(B1):
545-553
[10.1029/95jb02503]
Chao, B., R. Ray, J. Gipson, and G. Egbert. 1996. "Diurnal/semidiurnal polar motion excited by oceanic tidal angular momentum."
Journal of Geophysical Research,
101
(B9):
20,151-20,163
[10.1029/96JB01649]
Molnar, P., and J. M. Gipson. 1994. "Very long baseline interferometry and active rotations of crustal blocks in the Western Transverse Ranges, California."
Geological Society of America Bulletin,
106
(5):
594
[10.1130/0016-7606(1994)106<0594:vlbiaa>2.3.co;2]
Non-Refereed
Hilliard, L. M., L. Petrov, F. G. Lemoine, et al. 2019. "5 Year Technology Roadmap for VLBI Global Observing System (VGOS)."
Proceedings of the IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Yokohama, Japan, 28 July-2 Aug. 2019
[10.1109/IGARSS.2019.8897849]
Baver, K. D., and J. M. Gipson. 2019. "UT1 Formal Errors from the BA 50 Balanced Scheduling Strategy INT01 R&Ds ."
Proceedings of the International VLBI Service for Geodesy and Astrometry 2018 General Meeting: “Global Geodesy and the Role of VGOS – Fundamental to Sustainable Development”, Longyearbyen, Svalbard, June 3-8, 2018
NASA/CP–2019-219039:
Greenbelt, Maryland, U.S.A.: 209-213
[Full Text (Link)]
Macmillan, D. S., A. Fey, J. M. Gipson, et al. 2019. "Galactic Aberration in VLBI Analysis."
Proceedings of the International VLBI Service for Geodesy and Astrometry 2018 General Meeting: “Global Geodesy and the Role of VGOS–Fundamental to Sustainable Development”, Longyearbyen, Svalbard, June 3-8, 2018
NASA/CP–2019-219039:
Greenbelt, Maryland, U.S.A.: 163-168
[Full Text (Link)]
Behrend, D., C. C. Thomas, J. M. Gipson, and E. Himwich. 2019. "Organizing the Continuous VLBI Campaign 2017 (CONT17)."
Proceedings of the International VLBI Service for Geodesy and Astrometry 2018 General Meeting: “Global Geodesy and the Role of VGOS–Fundamental to Sustainable Development”, Longyearbyen, Svalbard, June 3-8, 2018
NASA/CP–2019-219039:
Greenbelt, Maryland: 95-101
[Full Text (Link)]
Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2017. "Implementation of the vgosDb format at the GSFC VLBI Analysis Center."
Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden
235-237
[Full Text (Link)]
Baver, K. D., and J. M. Gipson. 2017. "Reduction of the IVS-INT01 UT1 Formal Error through New Sked
Algorithms."
Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden
127-131
[Full Text (Link)]
Gipson, J. M., and K. D. Baver. 2017. "Simulation Results for KOKEE12M-WETTZ13S ’Intensives’."
Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden
108-112
[Full Text (Link)]
Behrend, D., C. C. Thomas, J. M. Gipson, and W. E. Himwich. 2017. "Planning of the Continuous VLBI Campaign 2017 (CONT17)."
Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden
132-135
[Full Text (Link)]
Le Bail, K., D. Gordon, J. M. Gipson, and D. S. Macmillan. 2017. "Investigating the noise floor of VLBI source positions."
Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden
186-189
[Full Text (Link)]
Nothnagel, A., D. Behrend, A. Bertarini, et al. 2016. "Strategic Plan of the IVS for the Period 2016-2025."
International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS"
NASA/CP-2016-219016:
Greenbelt, Maryland, 20771, U.S.A.: 3-12
[Full Text (Link)]
Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2016. "Transition to vgosDb Format."
International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS"
NASA/CP-2016-219016:
Greenbelt, Maryland, 20771, U.S.A.: 222-224
[Full Text (Link)]
Gipson, J. M., and K. D. Baver. 2016. "Improvement of the IVS-INT01 Sessions through Baynesian Estimation."
International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS"
NASA/CP-2016-219016:
Greenbelt, Maryland, 20711, U.S.A.: 229-233
[Full Text (Link)]
Gipson, J. M. 2016. "El Nino and VLBI Measured Length of Day."
International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS"
NASA/CP-2016-219016:
Greenbelt, Maryland 20711, U.S.A.: 336-340
[Full Text (Link)]
Le Bail, K., D. Gordon, J. M. Gipson, and D. S. Macmillan. 2015. "Observing Gaia transfer sources in R&D and RDV sessions."
Proceedings of the 22nd Meeting of the European VLBI Group for Geodesy and Astronomy, Sao Miguel, Azores, May 17-21. 2015
277-280,
ISBN: 978-989-20-6191-7.
[Full Text (Link)]
Gipson, J. M., K. Le Bail, and C. Ma. 2014. "The NASA Goddard Group's Source Monitoring Database and Program."
Proceedings of the 8th IVS General Meeting: "VGOS: The New VLBI Network", Shanghai, China, March 2-7, 2014
390-394,
ISBN: 978-7-03-042974-2.
[Full Text (Link)]
Le Bail, K., D. Gordon, and J. M. Gipson. 2014. "Evaluation of the stability of ICRF2 in the past five years using the Allan variance."
Proceedings of the 8th IVS General Meeting: VGOS: The New VLBI Network, Shanghai, China, March 2-7, 2014
ISBN: 978-7-03-042974-2.
[Full Text (Link)]
Le Bail, K., J. Gipson, J. Juhl, and D. MacMillan. 2013. "Optimal time lags to use in modeling the thermal deformation of VLBI Antennas."
21st Meeting of the European VLBI Group for Geodesy and Astronomy, held in Espoo, Finland, March 5-8, 2013, Eds: N. Zubko and M. Poutanen, Reports of the Finnish Geodetic Institute, p. 165-168.
165-168.
Thomas, C. C., D. Behrend, J. M. Gipson, and D. S. Macmillan. 2012. "Network Determination and Timeliness of the Rapid Sessions."
International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings
NASA CP/2012-217504:
Greenbelt, Maryland, U.S.A.: 166-170
[Full Text (Link)]
Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2012. "The First Release of νSolve."
International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings,
NASA CP/2012-217504:
Greenbelt, Maryland, U.S.A.: 222-226
[Full Text (Link)]
Juhl, J., K. Le Bail, J. M. Gipson, and D. MacMillan. 2012. "Improving VLBI Processing by using Homogeneous Data for Pressure and Temperature."
International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings
NASA CP/2012-217504:
Greenbelt, Maryland, U.S.A.: 241-245
[Full Text (Link)]
Le Bail, K., J. Gipson, and S. Bolotin. 2012. "Regularization of Nutation Time Series at GSFC."
International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings,
NASA CP/2012-217504:
Greenbelt, Maryland, U.S.A.: 380-384
[Full Text (Link)]
Le Bail, K., and J. M. Gipson. 2011. "Strategy to Improve the Homogeneity of Meteorological Data in Mark3 Databases."
20th Meeting of the European VLBI Group for Geodesy and Astronomy, Bonn, Germany, March 29-30, 2011
Rheinischen Friedrich-Wilhelms-Universität Bonn: 138-141
[Full Text (Link)]
Schmeing, B., D. Behrend, J. M. Gipson, and A. Nothnagel. 2010. "Proof-of-Concept Studies for a Local Tie Monitoring System."
International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.:
NASA CP/2010-215864:
Greenbelt, Maryland, U.S.A.: 138-142
[Full Text (Link)]
Gipson, J. M. 2010. "IVS Working Group 4: VLBI Data Structures."
International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings .:
NASA CP/2010-215864:
Greenbelt, Maryland, U.S.A.:
[Full Text (Link)]
Gordon, D., C. Ma, D. S. Macmillan, et al. 2010. "GSFC VLBI analysis center."
2010 International VLBI Service for Geodesy and Astrometry Annual Report 2009
231-234
[Full Text (Link)]
Bolotin, S., J. M. Gipson, and D. S. Macmillan. 2010. "Development of a new VLBI data analysis software."
International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings, "VLBI2010: From Vision to Reality"
NASA CP/2010-215864:
Greenbelt, Maryland, U.S.A.: 197-201
[Full Text (Link)]
Refereed
Behrend, D., C. C. Thomas, J. M. Gipson, E. Himwich, and K. Le Bail. 2020. "On the organization of CONT17."
Journal of Geodesy
94
(10):
[10.1007/s00190-020-01436-x]
Baver, K. D., and J. M. Gipson. 2020. "Balancing Source Strength and Sky Coverage in IVS-INT01 Scheduling."
Journal of Geodesy
94
(18):
[10.1007/s00190-020-01343-1]
Merkowitz, S. M., S. Bolotin, P. Elosegui, et al. 2019. "Modernizing and expanding the NASA Space Geodesy Network to meet future geodetic requirements."
Journal of Geodesy
93
(11):
2263-2273
[10.1007/s00190-018-1204-5]
MacMillan, D. S., A. Fey, J. M. Gipson, et al. 2019. "Galactocentric acceleration in VLBI analysis."
Astronomy & Astrophysics
630
A93
[10.1051/0004-6361/201935379]
Niell, A., J. Barrett, A. Burns, et al. 2018. "Demonstration of a Broadband Very Long Baseline Interferometer System: A New Instrument for High-Precision Space Geodesy."
Radio Science
63
1263-1291
[10.1029/2018rs006617]
Uunila, M., K. D. Baver, J. M. Gipson, T. Nilsson, and H. Krasna. 2016. "Comparison of VieVS and Solve UT1 results from VLBI measurements."
Journal of Geodesy and Geoinformation
3
(1):
1-8
[Full Text (Link)]
Gipson, J. M., and K. D. Baver. 2016. "Improvement of the IVS-INT01 sessions by source selection: development and evaluation of the maximal source strategy."
J. Geodesy
90
(3):
287-303
[10.1007/s00190-015-0873-6]
Le Bail, K., J. M. Gipson, D. Gordon, et al. 2016. "IVS Observation of ICRF2-Gaia Transfer Sources."
The Astronomical Journal
151
(3):
79
[10.3847/0004-6256/151/3/79]
Fey, A. L., D. Gordon, C. S. Jacobs, et al. 2015. "The Second Realization of the International Celestial Reference Frame by Very Long Baseline Interferometry."
The Astronomical Journal
150
(2):
58
[10.1088/0004-6256/150/2/58]
Eriksson, D., D. S. MacMillan, and J. M. Gipson. 2014. "Tropospheric delay ray tracing applied in VLBI analysis."
Journal of Geophysical Research: Solid Earth
119
(12):
9156-9170
[10.1002/2014jb011552]
Le Bail, K., J. M. Gipson, and D. S. Macmillan. 2014. "Quantifying the Correlation Between the MEI and LOD Variations by Decomposing LOD with Singular Spectrum Analysis."
International Association of Geodesy Symposia, "Earth on the Edge: Science for a Sustainable Planet", Melbourne, Australia, June 28 - July 2, 2011
139
473-477
[10.1007/978-3-642-37222-3_63]
Gordon, D., C. Ma, D. MacMillan, et al. 2013. "Effects of ICRF2 on the TRF, CRF, and EOP."
International Association of Geodesy Symposia
138
175-179
[10.1007/978-3-642-32998-2_26]
Gordon, D., K. L. Bail, C. Ma, et al. 2013. "The Construction of ICRF2 and Its Impact on the Terrestrial Reference Frame."
Earth on the Edge: Science for a Sustainable Planet
185-188
[10.1007/978-3-642-37222-3_23]
Ma, C., D. MacMillan, S. Bolotin, et al. 2012. "Comparison of Realizations of the Terrestrial Reference Frame."
International Association of Geodesy Symposia
138
51-56
[10.1007/978-3-642-32998-2_9]
Gordon, D., C. Ma, D. S. Macmillan, et al. 2012. "Effects of ICRF2 on the TRF, CRF, and EOP."
REFERENCE FRAMES FOR APPLICATIONS IN GEOSCIENCES,
International Association of Geodesy Symposia, "IAG Symposium on Reference Frames for Applications in Geosciences (REFAG)", Marne-la-Vallée, France, Oct: 4-8, 2010
138
175-179
[ 10.1007/978-3-642-32998-2_26]
Gipson, J. M., D. Behrend, D. Gordon, et al. 2010. "Coordinating, Scheduling, Processing and Analyzing IYA09."
International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.:
NASA CP/2010-215864
90-94
[Full Text (Link)]
Petrov, L., D. Gordon, J. Gipson, et al. 2009. "Precise geodesy with the Very Long Baseline Array."
Journal of Geodesy
83
(9):
859-876
[10.1007/s00190-009-0304-7]
Gipson, J., and C. Ma. 1998. "Site displacement due to variation in Earth rotation."
J. Geophysical Research - Solid Earth
103
(B4):
7337-7350
[ 10.1029/98JB00149]
Ma, C., and J. Gipson. 1998. "VLBI applied to reference frames."
IAG/IGGOS
Munich
Clark, T., C. Ma, J. Ryan, et al. 1998. "Earth rotation yields valuable information about the dynamics of the Earth system."
EOS Trans Am Geophys Union
79
205-206
[ 10.1029/98EO00149]
Mathews, P. M., V. Dehant, and J. M. Gipson. 1997. "Tidal station displacements."
Journal of Geophysical Research: Solid Earth
102
(B9):
20469-20477
[10.1029/97jb01515]
Gipson, J. M. 1996. "Very long baseline interferometry determination of neglected tidal terms in high-frequency Earth orientation variation."
Journal of Geophysical Research: Solid Earth
101
(B12):
28051-28064
[10.1029/96jb02292]
Molnar, P., and J. M. Gipson. 1996. "A bound on the rheology of continental lithosphere using very long baseline interferometry: The velocity of south China with respect to Eurasia."
Journal of Geophysical Research: Solid Earth
101
(B1):
545-553
[10.1029/95jb02503]
Chao, B., R. Ray, J. Gipson, and G. Egbert. 1996. "Diurnal/semidiurnal polar motion excited by oceanic tidal angular momentum."
Journal of Geophysical Research
101
(B9):
20,151-20,163
[10.1029/96JB01649]
Molnar, P., and J. M. Gipson. 1994. "Very long baseline interferometry and active rotations of crustal blocks in the Western Transverse Ranges, California."
Geological Society of America Bulletin
106
(5):
594
[10.1130/0016-7606(1994)106<0594:vlbiaa>2.3.co;2]
Non-Refereed
Hilliard, L. M., L. Petrov, F. G. Lemoine, et al. 2019. "5 Year Technology Roadmap for VLBI Global Observing System (VGOS)."
Proceedings of the IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, Yokohama, Japan, 28 July-2 Aug. 2019
[10.1109/IGARSS.2019.8897849]
Baver, K. D., and J. M. Gipson. 2019. "UT1 Formal Errors from the BA 50 Balanced Scheduling Strategy INT01 R&Ds ."
Proceedings of the International VLBI Service for Geodesy and Astrometry 2018 General Meeting: “Global Geodesy and the Role of VGOS – Fundamental to Sustainable Development”, Longyearbyen, Svalbard, June 3-8, 2018
NASA/CP–2019-219039
209-213
[Full Text (Link)]
Macmillan, D. S., A. Fey, J. M. Gipson, et al. 2019. "Galactic Aberration in VLBI Analysis."
Proceedings of the International VLBI Service for Geodesy and Astrometry 2018 General Meeting: “Global Geodesy and the Role of VGOS–Fundamental to Sustainable Development”, Longyearbyen, Svalbard, June 3-8, 2018
NASA/CP–2019-219039
163-168
[Full Text (Link)]
Behrend, D., C. C. Thomas, J. M. Gipson, and E. Himwich. 2019. "Organizing the Continuous VLBI Campaign 2017 (CONT17)."
Proceedings of the International VLBI Service for Geodesy and Astrometry 2018 General Meeting: “Global Geodesy and the Role of VGOS–Fundamental to Sustainable Development”, Longyearbyen, Svalbard, June 3-8, 2018
NASA/CP–2019-219039
95-101
[Full Text (Link)]
Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2017. "Implementation of the vgosDb format at the GSFC VLBI Analysis Center."
Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden
235-237
[Full Text (Link)]
Baver, K. D., and J. M. Gipson. 2017. "Reduction of the IVS-INT01 UT1 Formal Error through New Sked
Algorithms."
Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden
127-131
[Full Text (Link)]
Gipson, J. M., and K. D. Baver. 2017. "Simulation Results for KOKEE12M-WETTZ13S ’Intensives’."
Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden
108-112
[Full Text (Link)]
Behrend, D., C. C. Thomas, J. M. Gipson, and W. E. Himwich. 2017. "Planning of the Continuous VLBI Campaign 2017 (CONT17)."
Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden
132-135
[Full Text (Link)]
Le Bail, K., D. Gordon, J. M. Gipson, and D. S. Macmillan. 2017. "Investigating the noise floor of VLBI source positions."
Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden
186-189
[Full Text (Link)]
Nothnagel, A., D. Behrend, A. Bertarini, et al. 2016. "Strategic Plan of the IVS for the Period 2016-2025."
International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS"
NASA/CP-2016-219016
3-12
[Full Text (Link)]
Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2016. "Transition to vgosDb Format."
International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS"
NASA/CP-2016-219016
222-224
[Full Text (Link)]
Gipson, J. M., and K. D. Baver. 2016. "Improvement of the IVS-INT01 Sessions through Baynesian Estimation."
International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS"
NASA/CP-2016-219016
229-233
[Full Text (Link)]
Gipson, J. M. 2016. "El Nino and VLBI Measured Length of Day."
International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS"
NASA/CP-2016-219016
336-340
[Full Text (Link)]
Le Bail, K., D. Gordon, J. M. Gipson, and D. S. Macmillan. 2015. "Observing Gaia transfer sources in R&D and RDV sessions."
Proceedings of the 22nd Meeting of the European VLBI Group for Geodesy and Astronomy, Sao Miguel, Azores, May 17-21. 2015
277-280
[Full Text (Link)]
Gipson, J. M., K. Le Bail, and C. Ma. 2014. "The NASA Goddard Group's Source Monitoring Database and Program."
Proceedings of the 8th IVS General Meeting: "VGOS: The New VLBI Network", Shanghai, China, March 2-7, 2014
390-394
[Full Text (Link)]
Le Bail, K., D. Gordon, and J. M. Gipson. 2014. "Evaluation of the stability of ICRF2 in the past five years using the Allan variance."
Proceedings of the 8th IVS General Meeting: VGOS: The New VLBI Network, Shanghai, China, March 2-7, 2014
[Full Text (Link)]
Le Bail, K., J. Gipson, J. Juhl, and D. MacMillan. 2013. "Optimal time lags to use in modeling the thermal deformation of VLBI Antennas."
21st Meeting of the European VLBI Group for Geodesy and Astronomy, held in Espoo, Finland, March 5-8, 2013, Eds: N. Zubko and M. Poutanen, Reports of the Finnish Geodetic Institute, p. 165-168.
165-168
Thomas, C. C., D. Behrend, J. M. Gipson, and D. S. Macmillan. 2012. "Network Determination and Timeliness of the Rapid Sessions."
International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings
NASA CP/2012-217504
166-170
[Full Text (Link)]
Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2012. "The First Release of νSolve."
International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings,
NASA CP/2012-217504
222-226
[Full Text (Link)]
Juhl, J., K. Le Bail, J. M. Gipson, and D. MacMillan. 2012. "Improving VLBI Processing by using Homogeneous Data for Pressure and Temperature."
International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings
NASA CP/2012-217504
241-245
[Full Text (Link)]
Le Bail, K., J. Gipson, and S. Bolotin. 2012. "Regularization of Nutation Time Series at GSFC."
International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings,
NASA CP/2012-217504
380-384
[Full Text (Link)]
Le Bail, K., and J. M. Gipson. 2011. "Strategy to Improve the Homogeneity of Meteorological Data in Mark3 Databases."
20th Meeting of the European VLBI Group for Geodesy and Astronomy, Bonn, Germany, March 29-30, 2011
138-141
[Full Text (Link)]
Schmeing, B., D. Behrend, J. M. Gipson, and A. Nothnagel. 2010. "Proof-of-Concept Studies for a Local Tie Monitoring System."
International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.:
NASA CP/2010-215864
138-142
[Full Text (Link)]
Gipson, J. M. 2010. "IVS Working Group 4: VLBI Data Structures."
International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings .:
NASA CP/2010-215864
[Full Text (Link)]
Gordon, D., C. Ma, D. S. Macmillan, et al. 2010. "GSFC VLBI analysis center."
2010 International VLBI Service for Geodesy and Astrometry Annual Report 2009
231-234
[Full Text (Link)]
Bolotin, S., J. M. Gipson, and D. S. Macmillan. 2010. "Development of a new VLBI data analysis software."
International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings, "VLBI2010: From Vision to Reality"
NASA CP/2010-215864
197-201
[Full Text (Link)]
