11 to 20 of 882 Results
Jun 5, 2024
Kyle Pearson, 2024, "Enhancing Exoplanet Ephemerides by Leveraging Professional and Citizen Science Data: A Test Case with WASP-77A b", https://doi.org/10.48577/jpl.WUXO9J, Publications of the Astronomical Society of the Pacific, JPL Open Repository
We present an updated ephemeris, and physical parameters, for the exoplanet WASP-77 A b. In this effort, we combine 64 ground- and space-based transit observations, 6 space-based eclipse observations, and 32 radial velocity observations to produce this target’s most precise orbit... |
Jun 5, 2024
Raghvendra Sahai, 2024, "Distance estimate method for Asymptotic Giant Branch stars using Infrared Spectral Energy Distributions", https://doi.org/10.48577/jpl.WY85PL, The Astrophyscial Journal, JPL Open Repository
We present a method to estimate distances to Asymptotic Giant Branch (AGB) stars in the Galaxy, using spectral energy distributions (SEDs) in the near- and mid-infrared. By assuming that a given set of source properties (initial mass, stellar temperature, composition, and evoluti... |
Jun 5, 2024
Seungbum Kim, 2024, "Use of Multi-Frequency SAR anOptical Data for Crop Area Classification in Preparation for the NISAR Cropland Products", https://doi.org/10.48577/jpl.HS7OR5, Remote Sensing, JPL Open Repository
An algorithm for classifying crop areas from multi-frequency Synthetic Aperture Radar (SAR) and optical data is evaluated for the upcoming NASA ISRO SAR (NISAR) mission and its active crop-area products. Two time-series of L-band ALOS-2 and C-band Sentinel-1A images over an agric... |
Jun 5, 2024
Bonnie Teece, 2024, "Trace metal and organic biosignatures in digitate stromatolites from terrestrial siliceous hot spring deposits: Implications for the exploration of martian life", https://doi.org/10.48577/jpl.QNSQXD, Chemical Geology, JPL Open Repository
Novel biosignatures of laminated, microbial, digitate structures – stromatolites – from modern geothermal fields of the Taupō Volcanic Zone, New Zealand, and from El Tatio, Chile, provide an opportunity to investigate evidence of extremophile life preserved in siliceous hot sprin... |
Jun 5, 2024
Saoussen Belhadj Aissa, 2024, "Separation of Water Level Change from Atmospheric Artifacts Through Application of Independent Component Analysis to InSAR Time Series", https://doi.org/10.48577/jpl.ETUCRS, Earth and Space Science, JPL Open Repository
In recent years, synthetic aperture radar interferometry (InSAR) has emerged as a valuable tool for studying hydrodynamic processes in coastal wetlands by measure water level change (WLC). However, the highly dynamic wet atmosphere conditions common in these areas has a significa... |
Jun 5, 2024
Jessica Weber, 2024, "Photochemical Stability and Reactivity of Sodium Pyruvate: Implications for Organic Analysis on Ceres", https://doi.org/10.48577/jpl.CAL4NB, ACS earth and space chemistry, JPL Open Repository
No abstract available. |
Jun 5, 2024
Dan Gaines, 2024, "Trusted Autonomy on Mars: A Case study of the Mars 2020 Onboard Planner", https://doi.org/10.48577/jpl.E2II3U, NRC and NASA: Safety and Risk in Remote and Autonomous Operation (Hybrid), JPL Open Repository
No abstract available. |
Jun 4, 2024
Ashley Davies, 2024, "New Global Map of Io's Volcanic Thermal Emission and Discovery of Hemispherical Dichotomies", https://doi.org/10.48577/jpl.JTXQ6Q, Planetary Science Journal, JPL Open Repository
By combining multiple spacecraft and telescope datasets the first fully global volcanic heat flow map down to spatial resolutions of ~10 km/pixel in Io’s polar regions has been created. Juno Jovian Infrared Auroral Mapper (JIRAM) data have filled coverage gaps in Io’s polar regio... |
Jun 4, 2024
Bing-Chung Chen, 2024, "Europa Clipper DTM Modal Survey – Challenges to Match Asymmetry Modes", https://doi.org/10.48577/jpl.VYWVOJ, Spacecraft and launch Vehicle Dynamics Environments Workshop 2024 (El Segundo, CA) [Jun 2024], JPL Open Repository
No abstract available. |
Jun 4, 2024
Michael Van Dyke, 2024, "Dealing With Force Limiting Error Due to Adaptive Fixturing Mass", https://doi.org/10.48577/jpl.971TZ2, Spacecraft and launch Vehicle Dynamics Environments Workshop 2024 (El Segundo, CA) [Jun 2024], JPL Open Repository
No abstract available. |