Results 91 to 100 of about 2,119 (200)

High-precision Relativistic Timescales for Mars Surface and Orbital Clocks

The Astrophysical Journal
We develop a Mars-centered post-Newtonian framework relating barycentric and Mars-centered coordinate times, a conventional Mars surface timescale, and proper times of landed and orbiting clocks. Following the IAU reference system formalism, we introduce
Slava G. Turyshev
doaj   +1 more source

Measuring the Elemental Composition of Phobos: The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) Investigation for the Martian Moons eXploration (MMX) Mission

Earth and Space Science, 2019
The Mars‐moon Exploration with GAmma rays and NEutrons (MEGANE) investigation will use gamma‐ray and neutron spectroscopy to measure the elemental composition of Mars' moon Phobos.
David J. Lawrence, Patrick N. Peplowski, Andrew W. Beck, Morgan T. Burks, Nancy L. Chabot, Michael J. Cully, Richard C. Elphic, Carolyn M. Ernst, Samuel Fix, John O. Goldsten, Erin M. Hoffer, Hiroki Kusano, Scott L. Murchie, Brian C. Schratz, Tomohiro Usui, Zachary W. Yokley   +15 more
doaj   +1 more source

DEIMoS: An Open-Source Tool for Processing High-Dimensional Mass Spectrometry Data. [PDF]

Anal Chem, 2022
Colby SM, Chang CH, Bade JL, Nunez JR, Blumer MR, Orton DJ, Bloodsworth KJ, Nakayasu ES, Smith RD, Ibrahim YM, Renslow RS, Metz TO.   +11 more
europepmc   +1 more source

Basins of Convergence in a Multi-Perturbed CR3BP

Applied Sciences
The circular restricted three-body problem (CR3BP) is analyzed to introduce additional factors into the dynamic model, such as radiation forces, flattening of the primary bodies, relativity effects, and the presence of natural satellites.
Alicia Herrero, Santiago Moll-Lopez, José-A. Moraño, Erika Vega-Fleitas, Daniel Villalibre   +4 more
doaj   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

Overview of Phobos/Deimos Regolith Ion Sample Mission (PRISM) Concept [PDF]

, 2018
Far more definitive information on composition is required to resolve the question of origin for the Martian moons Phobos and Deimos. Current infrared spectra of the objects are inconclusive due to the lack of strong diagnostic features.Definitive ...
Collier, Michael, Farrell, William M., Sarantos, Menelaos, Rivkin, Andrew S., Dibraccio, Gina, Keller, John W., Killen, Rosemary, Espley, Jared, Malphrus, Ben, Hughes, Kyle M., Hurley, Dana, Murchie, Scott, Schaible, Micah, Jones, Sarah L., Halekas, Jasper, Folta, David, Clark, Pamela, Vondrak, Richard, Stubbs, Timothy   +18 more
core  

MEGANE investigations of Phobos and the Small Body Mapping Tool. [PDF]

Earth Planets Space, 2021
Chabot NL, Peplowski PN, Ernst CM, Nair H, Lucks M, Steele RJ, Lawrence DJ.   +6 more
europepmc   +1 more source

Dynamic Memory Model Reconfiguration in DEIMOS

, 1999
Operating system design has traditionally followed a philosophy in which the system is structured as a fixed set of abstractions and mechanisms. This approach, however, is now showing its limitations in the face of new application areas which demand ...
Michael Clarke, Geoff Coulson, Bailrigg Lancaster, La Yr U. K   +3 more
core  

Accuracy of estimating the masses of Phobos and Deimos from multiple Viking orbiter encounters [PDF]

, 1975
The problem was investigated of estimating the masses of Phobos and Deimos from Doppler and onboard optical measurements during the Viking extended mission.
Tolson, R. H., Mason, M. L.
core  

Revised Ephemerides of the Martian Satellites, Phobos and Deimos

The Astronomical Journal
We report on the new ephemerides (MAR099) for the satellites of Mars derived from a large set of ground-based and spacecraft astrometric measurements. Our integrated orbit fit yielded latest estimates for the Martian tidal parameter τ = k _2 / Q = 1.816 ±
Marina Brozović, Robert A. Jacobson, Ryan S. Park   +2 more
doaj   +1 more source