Sean Swei, Jesse Fusco, Robert H. Nakamura,
... an anomaly is detected. Employed by NASA's Lunar Atmosphere and Dust Environment Explorer, the controllers use the measured sun vector and ... duration, is commanded. To validate the controllers, the Lunar Atmosphere and Dust Environment Explorer spacecraft model engaging the sun-safe mode is first simulated and then compared with the actual Lunar Atmosphere and Dust Environment Explorer orbital flight data. The results demonstrate the applicability ...
Tópico(s): Space Satellite Systems and Control
2016 - American Institute of Aeronautics and Astronautics | Journal of Guidance Control and Dynamics
P. R. Mahaffy, R. R. Hodges, M. Benna, Todd King, Robert Arvey, Michael Barciniak, Mirl Bendt, Daniel Carigan, Therese Errigo, Daniel Harpold, Vincent Holmes, Christopher S. Johnson, James W. Kellogg, Patrick Kimvilakani, Matthew Lefavor, Jerome Hengemihle, Ferzan Jaeger, Eric Lyness, John Maurer, Daniel Nguyen, Thomas J. Nolan, Felix Noreiga, Marvin Noriega, Kiran Patel, Benito Prats, Omar Quinones, E. Raaen, Florence Tan, Edwin Weidner, Michael Woronowicz, Cynthia Gundersen, Steven Battel, Bruce Block, Ken Arnett, Ryan Miller, Curt Cooper, Charles Edmonson,
The Neutral Mass Spectrometer (NMS) of the Lunar Atmosphere and Dust Environment Explorer (LADEE) Mission is designed to measure the composition and variability of the tenuous lunar atmosphere. The NMS complements two other instruments on the LADEE spacecraft designed to secure spectroscopic measurements of lunar composition and in situ measurement of lunar dust over the course of a 100-day mission ...
Tópico(s): Space Exploration and Technology
2014 - Springer Science+Business Media | Space Science Reviews
P. D. Feldman, D. A. Glenar, T. J. Stubbs, K. D. Retherford, G. R. Gladstone, P. F. Miles, T. K. Greathouse, D. E. Kaufmann, J. W. Parker, S. A. Stern,
... the same observing geometries. These results indicate that Lunar Atmosphere Dust Environment Explorer ( LADEE ) UVS lunar dust observations will be considerably more challenging than ...
Tópico(s): Space exploration and regulation
2014 - Elsevier BV | Icarus
... detected by the neutral mass spectrometer on the Lunar Atmosphere and Dust Environment Explorer spacecraft is consistent with adsorptive respiration in seasonal ... by the lack of evidence of water in Lunar Atmosphere and Dust Environment Explorer data, which, in turn, establishes an upper bound ...
Tópico(s): Scientific Research and Discoveries
2018 - American Geophysical Union | Geophysical Research Letters
Jacob Kegerreis, V. R. Eke, R. Massey, Simon K. Beaumont, R. C. Elphic, L. F. A. Teodoro,
... temporally varying cold trap areas. Measurements from the Lunar Atmosphere and Dust Environment Explorer (LADEE) and the Lunar Atmosphere Composition Experiment (LACE) are used to test whether ...
Tópico(s): Space Science and Extraterrestrial Life
2017 - Wiley | Journal of Geophysical Research Planets
M. Benna, D. M. Hurley, T. J. Stubbs, P. R. Mahaffy, R. C. Elphic,
... exosphere by the Neutral Mass Spectrometer on the Lunar Atmosphere and Dust Environment Explorer. The timing of 29 water releases is associated ... analysis of water releases detected by NASA’s Lunar Atmosphere and Dust Environment Explorer.
Tópico(s): Space Science and Extraterrestrial Life
2019 - Nature Portfolio | Nature Geoscience
... in situ dust detection. Here, we use recent Lunar Atmosphere and Dust Environment Explorer /Lunar Dust Experiment measurements of the lunar dust cloud ...
Tópico(s): Stellar, planetary, and galactic studies
2016 - IOP Publishing | The Astrophysical Journal Letters
E. Bernardoni, J. R. Szalay, M. Horányi,
... on‐board National Aeronautics and Space Administration's Lunar Atmosphere and Dust Environment Explorer, observed significant enhancements in impact rate measurements of lunar ejecta. These enhancements were attributed to the spacecraft ...
Tópico(s): Space Satellite Systems and Control
2018 - American Geophysical Union | Geophysical Research Letters
The Lunar Dust Experiment (LDEX), aboard NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE) successfully mapped the dust density distribution over the lunar surface up to an altitude of ∼ 250 km. ...
Tópico(s): Stellar, planetary, and galactic studies
2016 - Elsevier BV | Icarus
... data from the neutral mass spectrometer on the Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft. Like argon‐40, methane is adsorbed on the lunar surface during nighttime. However, higher activation energies for ...
Tópico(s): Space Exploration and Technology
2016 - American Geophysical Union | Geophysical Research Letters
Abstract The Lunar Atmosphere and Dust Environment Explorer (LADEE) orbited the Moon for approximately 6 months, taking data with the Lunar Dust Experiment (LDEX). LDEX was uniquely equipped to characterize the current rate of lunar impact gardening as it measured ...
Tópico(s): Space Science and Extraterrestrial Life
2016 - American Geophysical Union | Geophysical Research Letters
J. R. Szalay, M. Horányi, A. Colaprete, M. Sarantos,
Abstract The Lunar Atmosphere and Dust Environment Explorer (LADEE) orbited the Moon for approximately 6 months, taking data with the Lunar Dust Experiment (LDEX), Ultraviolet‐Visible Spectrometer (UVS), and Neutral Mass Spectrometer (NMS). Here we compare coincident LDEX measurements of ...
Tópico(s): Isotope Analysis in Ecology
2016 - American Geophysical Union | Geophysical Research Letters
J. S. Halekas, M. Benna, P. R. Mahaffy, R. C. Elphic, A. R. Poppe, G. T. Delory,
Abstract The Lunar Atmosphere and Dust Environment Explorer (LADEE) Neutral Mass Spectrometer (NMS), operating in ion mode, provides sensitive detections of ions from the lunar exosphere. By analyzing ion‐mode data from the entire mission, utilizing Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon' ...
Tópico(s): Isotope Analysis in Ecology
2015 - American Geophysical Union | Geophysical Research Letters
M. Benna, P. R. Mahaffy, J. S. Halekas, R. C. Elphic, G. T. Delory,
Abstract The Neutral Mass Spectrometer (NMS) onboard the Lunar Atmosphere and Dust Environment Explorer (LADEE) provided the first global characterization of He and Ar along with the discovery of Ne in the lunar exosphere. The mapping of the equatorial distribution of ...
Tópico(s): Isotope Analysis in Ecology
2015 - American Geophysical Union | Geophysical Research Letters
... The Lunar Dust Experiment on board NASA's Lunar Atmosphere and Dust Environment Explorer discovered a permanently present, asymmetric dust cloud engulfing the Moon, sustained by meteoroid bombardment. It is most dense at 5–8 lunar local time, with a peak density canted sunward. ...
Tópico(s): Geology and Paleoclimatology Research
2015 - American Geophysical Union | Geophysical Research Letters
J. R. Szalay, Petr Pokorný, Peter Jenniskens, M. Horányi,
The Lunar Dust Experiment (LDEX) onboard the Lunar Atmosphere and Dust Environment Explorer mission orbited the Moon from 2013 October to 2014 April and detected impact ejecta generated by the continual bombardment of meteoroids to the lunar surface. While the Moon transited the Geminid meteoroid ...
Tópico(s): Gamma-ray bursts and supernovae
2017 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
D. M. Hurley, J. C. Cook, M. Benna, J. S. Halekas, P. D. Feldman, K. D. Retherford, R. R. Hodges, C. Grava, P. R. Mahaffy, G. R. Gladstone, T. K. Greathouse, D. E. Kaufmann, R. C. Elphic, S. A. Stern,
... LRO) Lyman Alpha Mapping Project (LAMP) and the Lunar Atmosphere and Dust Environment Explorer (LADEE) Neutral Mass Spectrometer (NMS) through the entire 5-month span of the LADEE mission. In addition, the ARTEMIS mission monitored the solar wind alpha particle flux to the Moon. Modeling the lunar helium exosphere, we relate the LAMP polar observations ...
Tópico(s): Solar and Space Plasma Dynamics
2015 - Elsevier BV | Icarus
A. Colaprete, M. Sarantos, D. H. Wooden, T. J. Stubbs, Amanda Cook, M. Shirley,
... the Ultraviolet and Visible Spectrometer (UVS) on the Lunar Atmosphere and Dust Environment Explorer (LADEE) have revealed unambiguous temporal and spatial variations indicative of a strong role for meteoroid bombardment and surface composition in determining the composition and local time dependence of the Moon's exosphere. Observations show distinct lunar day (monthly) cycles for both species as well ...
Tópico(s): Space Exploration and Technology
2015 - American Association for the Advancement of Science | Science
T. J. Stubbs, D. A. Glenar, A. Colaprete, Denis Richard,
The Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft will orbit the Moon at an altitude of ≈50 km with a payload that includes the Ultraviolet Spectrometer (UVS) instrument, which will obtain high spectral resolution measurements at near-ultraviolet and visible wavelengths (≈231–826 nm). When LADEE/UVS observes the lunar limb from within the shadow of the Moon it is anticipated that it will detect a lunar horizon ...
Tópico(s): Stellar, planetary, and galactic studies
2010 - Elsevier BV | Planetary and Space Science
... The Lunar Dust Experiment (LDEX) on board the Lunar Atmosphere and Dust Environment Explorer mission was designed to make in situ dust measurements while orbiting the Moon. Particles with radii a >∼ 0.3μm were detected as single impacts. LDEX was also capable of measuring the collective signal generated from dust impacts with sizes below its single‐particle detection threshold. A putative population of electrostatically lofted grains above the lunar terminator with radii of approximately 0.1 μm ...
Tópico(s): Space Science and Extraterrestrial Life
2015 - American Geophysical Union | Geophysical Research Letters
Lianghai Xie, Xiaoping Zhang, Lei Li, Bin Zhou, Yiteng Zhang, Qi Yan, Yongyong Feng, Dawei Guo, Shuoran Yu,
... observed by the Lunar Dust Experiment on board Lunar Atmosphere and Dust Environment Explorer mission, which happen near a twilight crater with ...
Tópico(s): Space Science and Extraterrestrial Life
2020 - American Geophysical Union | Geophysical Research Letters
W. F. Bottke, Althea V. Moorhead, H. C. Connolly, C. W. Hergenrother, J. L. Molaro, Patrick Michel, M. C. Nolan, S. R. Schwartz, David Vokrouhlický, K. J. Walsh, D. S. Lauretta,
... Moon's asymmetric debris cloud observed by the Lunar Atmosphere and Dust Environment Explorer (LADEE). Our findings also suggest that fewer ejection ...
Tópico(s): Space Satellite Systems and Control
2020 - Wiley | Journal of Geophysical Research Planets
Diego Janches, Petr Pokorný, M. Sarantos, J. R. Szalay, M. Horányi, David Nesvorný,
... Lunar Dust Experiment (LDEX) on board the NASA Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft with help from dynamical models of ...
Tópico(s): Stellar, planetary, and galactic studies
2018 - American Geophysical Union | Geophysical Research Letters
D. C. P. Kuruppuaratchi, E. J. Mierkiewicz, R. J. Oliversen, M. Sarantos, N. J. Derr, M. A. Gallant, Sara Rosborough, C. Freer, L. Spalsbury, D. D. Gardner, O. L. Lupie, F. L. Roesler,
Abstract We present the first comprehensive set of lunar exospheric line width and line width derived effective temperatures as a function of lunar phase (66° waxing phase to 79° waning phase). Data were collected between November 2013 and May 2014 during six observing runs at the National Solar Observatory McMath‐Pierce Solar Telescope by applying high‐resolution Fabry‐Perot spectroscopy ( R ~ 180,000) to observe emission from exospheric sodium (5,889.9509 Å, D2 line). The 3‐arc min field of view of ...
Tópico(s): Stellar, planetary, and galactic studies
2018 - Wiley | Journal of Geophysical Research Planets
C. Grava, T. J. Stubbs, D. A. Glenar, K. D. Retherford, D. E. Kaufmann,
... exosphere, evidence for which was provided by the Lunar Atmosphere and Dust Environment Explorer (LADEE) Ultraviolet and Visible Spectrometer (UVS) during the ...
Tópico(s): Solar and Space Plasma Dynamics
2017 - American Geophysical Union | Geophysical Research Letters
A. R. Poppe, J. S. Halekas, J. R. Szalay, M. Horányi, Zuni Levin, S. Kempf,
... the Lunar Dust Experiment (LDEX) on board the Lunar Atmosphere and Dust Environment Explorer (LADEE). We describe the method of observation and ...
Tópico(s): Space Science and Extraterrestrial Life
2016 - American Geophysical Union | Geophysical Research Letters
M. L. Stevens, Ronald R. Parenti, Matthew M. Willis, Joseph A. Greco, Farzana I. Khatri, Bryan S. Robinson, D. M. Boroson,
... Lunar Laser Communication Demonstration (LLCD) flown on the Lunar Atmosphere and Dust Environment Explorer (LADEE) satellite achieved record uplink and downlink communication ...
Tópico(s): Spacecraft Design and Technology
2016 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Abstract The neutral mass spectrometer on the Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft collected a trove of exospheric data, including a set of high‐quality measurements of radiogenic 40 Ar over a period of ...
Tópico(s): Space Science and Extraterrestrial Life
2015 - American Geophysical Union | Geophysical Research Letters
... s Lunar Laser Communication Demonstration (LLCD) from the Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft orbiting the moon in 2013. This ...
Tópico(s): Space exploration and regulation
2015 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
M. Horányi, Z. Sternovsky, M. R. Lankton, Charles Dumont, S. Gagnard, D. Gathright, E. Grün, D. Hansen, D. J. James, S. Kempf, Bret Lamprecht, R. Srama, J. R. Szalay, Grady B. Wright,
Tópico(s): Space Science and Extraterrestrial Life
2014 - Springer Science+Business Media | Space Science Reviews