Sciences and Exploration Directorate

Evan Derek Hoffman

(RSCH AST, SOLID EARTH GEOPHYSICAL STD)

 evan.d.hoffman@nasa.gov

 301.286.1394

Org Code: 61A

NASA/GSFC
Mail Code: 61A
Greenbelt, MD 20771

Employer: NASA

Positions/Employment


SLR Instrument Scientist

NASA Goddard Space Flight Center - Greenbelt, Maryland

June 2016 - Present


Researcher

GFZ German Research Centre for Geosciences - Potsdam, Germany

January 2013 - October 2014


Systems Engineer

Honeywell Technology Solutions, Inc. - Lanham, Maryland

April 2008 - May 2016


Electronics Engineer

United States Naval Observatory - Washington, D.C.

June 2007 - March 2008

Publications


Refereed

Cremons, D. R., X. Sun, Z. H. Denny, et al. E. D. Hoffman, E. Mazarico, S. W. Wake, E. Aaron, and D. E. Smith. 2020. Optical Characterization of Laser Retroreflector Arrays for Lunar Landers Applied Optics 59 (16): 5020-5031 [https://doi.org/10.1364/AO.388371]

Sun, X., D. E. Smith, E. D. Hoffman, et al. S. W. Wake, D. R. Cremons, E. Mazarico, J.-M. Lauenstein, and E. C. Aaron. 2019. Small and Lightweight Laser Retro-Reflector Arrays for Lunar Landers Applied Optics 58 (33): 9259-9266 [10.1364/AO.58.009259]

McGarry, J. F., E. D. Hoffman, J. J. Degnan, et al. J. W. Cheek, C. B. Clarke, I. F. Diegel, H. L. Donovan, J. E. Horvath, M. Marzouk, A. R. Nelson, D. S. Patterson, R. L. Ricklefs, M. D. Shappirio, S. L. Wetzel, and T. W. Zagwodzki. 2019. NASA’s satellite laser ranging systems for the twenty-first century Journal of Geodesy 93 (11): 2249–2262 [10.1007/s00190-018-1191-6]

Merkowitz, S. M., S. Bolotin, P. Elosegui, et al. J. Esper, J. Gipson, L. Hilliard, E. Himwich, E. D. Hoffman, D. D. Lakins, R. C. Lamb, F. G. Lemoine, J. L. Long, J. F. McGarry, D. S. MacMillan, B. P. Michael, C. Noll, E. C. Pavlis, M. R. Pearlman, C. Ruszczyk, M. D. Shappirio, and D. A. Stowers. 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]

Barker, M. K., X. Sun, D. Mao, et al. E. Mazarico, G. A. Neumann, M. T. Zuber, D. E. Smith, J. L. Mcgarry, and E. D. Hoffman. 2018. In-flight characterization of the lunar orbiter laser altimeter instrument pointing and far-field pattern Applied Optics 57 (27): 7702 [10.1364/ao.57.007702]

Mao, D., J. L. Mcgarry, E. Mazarico, et al. G. A. Neumann, X. Sun, M. H. Torrence, T. W. Zagwodzki, D. D. Rowlands, E. D. Hoffman, J. E. Horvath, J. E. Golder, M. K. Barker, D. E. Smith, and M. T. Zuber. 2017. The Laser Ranging Experiment of the Lunar Reconnaissance Orbiter: Five Years of Operations and Data Analysis Icarus 283 55-69 [10.1016/j.icarus.2016.07.003]

Sun, X., D. R. Skillman, E. D. Hoffman, et al. D. Mao, J. F. McGarry, L. McIntire, R. S. Zellar, F. M. Davidson, W. H. Fong, M. A. Krainak, G. A. Neumann, M. T. Zuber, and D. E. Smith. 2013. Free space laser communication experiments from Earth to the Lunar Reconnaissance Orbiter in lunar orbit Optics Express 21 (2): 1865 [10.1364/oe.21.001865]

Non-Refereed

Colmenares, N. R., J. B. Battat, D. P. Gonzales, et al. E. D. Hoffman, F. G. Lemoine, R. M. McMillan, S. M. Merkowitz, T. W. Murphy, S. S. Sabhlok, and V. Viswanathan. 2023. Recent Developments at the Apache Point Lunar Laser Ranging Station Proceedings of the 22nd International Workshop on Laser Ranging

Cremons, D. R., X. Sun, Z. Denny, et al. S. W. Wake, E. D. Hoffman, E. Mazarico, E. C. Aaron, and D. E. Smith. 2021. Optical characterization of CLPS Miniature Laser Retroreflector Arrays 52nd Lunar and Planetary Science Conference (Virtual Meeting), 15-19 March 2021, The Woodlands, Texas, LPI Contrib. 2548 (id1629):

Lyons, P., J. J. Lyons, P. J. Dogoda, et al. J. Golder, D. Lindler, S. Merkowitz, E. Hoffman, D. Steinfeld, J. Crow, G. Gao, and K. Dymond. 2020. Alignment and verification testing of the GPS LRA test bed Proceedings Volume 11488, Optical System Alignment, Tolerancing, and Verification XIII; 114880 [10.1117/12.2569160]

Donovan, H. L., D. S. Patterson, S. L. Wetzel, et al. J. Marzouk, J. L. Mcgarry, J. J. Degnan, A. Nelson, F. Hall, J. W. Cheek, M. Shappirio, and E. D. Hoffman. 2016. The Gimbal and Telescope Assembly for NASA's Next Generation Space Geodesy SLR Systems 20th International Workshop on Laser Ranging, Potsdam Germany, October 9-14, 2016

Mcgarry, J. L., H. L. Donovan, S. L. Wetzel, et al. J. Marzouk, J. J. Degnan, J. E. Horvath, J. W. Cheek, E. D. Hoffman, D. S. Patterson, I. Diegel, R. Ricklefs, R. Machan, E. L. Leventhal, A. M. Mann, and C. B. Clarke. 2016. Designing NASA's Next Generation SLR stations with the goal of full automation 20th International Workshop on Laser Ranging, Potsdam Germany, October 9-14, 2016.

Mcgarry, J. L., D. Mao, E. Mazarico, et al. G. A. Neumann, X. Sun, M. H. Torrence, M. K. Barker, E. D. Hoffman, J. E. Horvath, D. E. Smith, and M. T. Zuber. 2016. The Contributions of ILRS Laser Ranging to the Lunar Reconnaissance Orbiter Mission 20th International Workshop on Laser Ranging, Potsdam Germany, October 9-14, 2016

Hoffman, E. D. 2016. SGSLR Testing Facility at GGAO GSFC-E-DAA-TN35238

Hoffman, E. D., D. S. Patterson, H. L. Donovan, J. L. Mcgarry, and C. B. Clarke. 2016. SGSLR Range Control Electronics Design and Implementation 20th International Workshop on Laser Ranging, Potsdam Germany, October 9-14, 2016

Merkowitz, S. M., J. Esper, L. M. Hilliard, et al. E. D. Hoffman, J. E. Horvath, F. G. Lemoine, J. L. Long, C. Ma, D. McCormick, J. L. Mcgarry, B. P. Michael, C. E. Noll, J. Sager, M. D. Shappirio, and S. L. Wetzel. 2016. The NASA Space Geodesy Network 20th International Workshop on Laser Ranging, Potsdam Germany, October 9-14, 2016

Hoffman, E. D., L. Grunwaldt, S. Weisheit, and T. Gerber. 2014. Upgrades and New Capabilities of the GFZ SLR Timing System Proceedings of the 19th International Workshop on Laser Ranging, Annapolis, Maryland, October 27-31, 2014

Sun, X., D. R. Skillman, E. D. Hoffman, et al. D. Mao, J. L. Mcgarry, G. A. Neumann, L. McIntire, R. S. Zellar, F. M. Davidson, W. H. Fong, M. A. Krainak, M. T. Zuber, and D. E. Smith. 2013. Simultaneous Laser Ranging and Communication from an Earth-Based Satellite Laser Ranging Station to the Lunar Reconnaissance Orbiter in Lunar Orbit.” Proceedings of the SPIE XXV Conference on Free-Space Laser Communication and Atmospheric Propagation [10.1117/12.2006645]