Sciences and Exploration Directorate

Tracy (She/Her) Esman


Org Code: 670

Mail Code: 675
Greenbelt, MD 20771


Brief Bio

Tracy is a planetary scientist working with Mars (MAVEN, MGS) and Earth (POES, Van Allen) data. She is a member of the MAVEN MAG science team and an ambassador for Spritacular ( She also has been working on data accessibility by producing data products and adapting code (Python) for easier and more efficient access.

Current Projects

Statistical analysis of EMIC waves in the terrestrial magnetosphere

Additions to Pysat for data accessibility


PhD, Planetary Science 2022, The University of Arizona

Masters, Planetary Science 2018, The University of Arizona

BA Astronomy-Physics, The University of Virginia



Esman, T. M., J. Espley, J. Gruesbeck, et al. C. M. Fowler, S. Xu, M. Elrod, Y. Harada, and J. Giacalone. 2022. Martian Ionospheric Magnetic Fluctuations Below 200 km Journal of Geophysical Research: Space Physics 127 (9): [10.1029/2022ja030470]

Esman, T. M., J. Espley, J. Gruesbeck, K. G. Klein, and J. Giacalone. 2021. Plasma Waves in the Distant Martian Environment: Implications for Mars' Sphere of Influence Journal of Geophysical Research: Space Physics 126 (11): [10.1029/2021ja029686]

Jakosky, B., D. Brain, M. Chaffin, et al. S. Curry, J. Deighan, J. Grebowsky, J. Halekas, F. Leblanc, R. Lillis, J. Luhmann, L. Andersson, N. Andre, D. Andrews, D. Baird, D. Baker, J. Bell, M. Benna, D. Bhattacharyya, S. Bougher, C. Bowers, P. Chamberlin, J.-Y. Chaufray, J. Clarke, G. Collinson, M. Combi, J. Connerney, K. Connour, J. Correira, K. Crabb, F. Crary, T. Cravens, M. Crismani, G. Delory, R. Dewey, G. DiBraccio, C. Dong, Y. Dong, P. Dunn, H. Egan, M. Elrod, S. England, F. Eparvier, R. Ergun, A. Eriksson, T. Esman, J. Espley, S. Evans, K. Fallows, X. Fang, M. Fillingim, C. Flynn, A. Fogle, C. Fowler, J. Fox, M. Fujimoto, P. Garnier, Z. Girazian, H. Groeller, J. Gruesbeck, O. Hamil, K. Hanley, T. Hara, Y. Harada, J. Hermann, M. Holmberg, G. Holsclaw, S. Houston, S. Inui, S. Jain, R. Jolitz, A. Kotova, T. Kuroda, D. Larson, Y. Lee, C. Lee, F. Lefevre, C. Lentz, D. Lo, R. Lugo, Y.-J. Ma, P. Mahaffy, M. Marquette, Y. Matsumoto, M. Mayyasi, C. Mazelle, W. McClintock, J. McFadden, A. Medvedev, M. Mendillo, K. Meziane, Z. Milby, D. Mitchell, R. Modolo, F. Montmessin, A. Nagy, H. Nakagawa, C. Narvaez, K. Olsen, D. Pawlowski, W. Peterson, A. Rahmati, K. Roeten, N. Romanelli, S. Ruhunusiri, C. Russell, S. Sakai, N. Schneider, K. Seki, R. Sharrar, S. Shaver, D. Siskind, M. Slipski, Y. Soobiah, M. Steckiewicz, M. Stevens, I. Stewart, A. Stiepen, S. Stone, V. Tenishev, N. Terada, K. Terada, E. Thiemann, R. Tolson, G. Toth, J. Trovato, M. Vogt, T. Weber, P. Withers, S. Xu, R. Yelle, E. Yiğit, and R. Zurek. 2018. Loss of the Martian atmosphere to space: Present-day loss rates determined from MAVEN observations and integrated loss through time Icarus 315 146-157 [10.1016/j.icarus.2018.05.030]

Peterson, W. K., C. M. Fowler, L. A. Andersson, et al. E. M. Thiemann, S. K. Jain, M. Mayyasi, T. M. Esman, R. Yelle, M. Benna, and J. Espley. 2018. Martian Electron Temperatures in the Subsolar Region: MAVEN Observations Compared to a One-Dimensional Model Journal of Geophysical Research: Space Physics 123 (7): 5960-5973 [10.1029/2018ja025406]