11 to 20 of 6,761 Results
Apr 22, 2024
Gerhard Kruizinga, 2024, "Mars Sample Return Direct Earth Approach Navigation Analysis", https://doi.org/10.48577/jpl.BSEKXJ, 29th International Symposium on Space Flight Dynamics (ISSFD), JPL Open Repository
This paper describes the navigation analysis, results and filter strategies planned by the European Space Agency (ESA) and the National Aeronautical and Space Administration (NASA) navigation Teams for the joint ESA and NASA Mars Sample Return (MSR) mission, targeting a direct ap... |
Apr 21, 2024
Abhijit Biswas, 2024, "Photon-Counting for deep space optical copmmunications", https://doi.org/10.48577/jpl.7CTCMG, SPIE Defense + Commercial Sensing 2024, JPL Open Repository
Motivated by the need for higher data volume return from NASA’s future planetary missions, the deep space optical communications (DSOC) technology demonstration (TD) was initiated. The DSOC project integrated a flight laser transceiver to the Psyche Mission spacecraft which launc... |
Apr 21, 2024
Thomas Lu, 2024, "Intelligent Knowledge Base Search Tool using Large Language Model and Graph Neural Network", https://doi.org/10.48577/jpl.UEKXQI, SPIE Defense + Commercial Sensing 2024, JPL Open Repository
ABSTRACT Within many organizations, a vast number of communications, memos, reports and documents have been accumulated in internal servers. Efficiently discovering relevant entries can reduce time spent addressing organizational needs such as personnel skills matching or anomaly... |
Apr 16, 2024
Christian Smart, 2024, "The Best of Both Worlds: Combining Parametric Cost Risk Analysis with Earned Value Management Using Bayesian Parameter Learning", https://doi.org/10.48577/jpl.LRTTEZ, Defense and Aerospace Test and Analysis Workshop, JPL Open Repository
Cost risk analysis and earned value data are typically used separately and independently to compute Estimates at Completion (EAC). However, combining the two can significantly improve the accuracy of EAC forecasting. This paper provides a rigorous method using Bayesian methods. W... |
Apr 15, 2024
Robert Anderson, 2024, "Evaluating The Capability of the SPARTA Toolkit to Quantitatively Characterize Planetary Regolith", https://doi.org/10.48577/jpl.PTUFUS, Earth & Space 2024, JPL Open Repository
The overall success of NASA’s strategic objective of placing humans on extraterrestrial planetary surfaces depends on a thorough understanding of a planetary regolith's near-surface environmental and geomechanical properties. Comprehensive in situ characterization of planetary re... |
Apr 8, 2024
Shreya Parjan (397K); Dan Gaines; Stephen Kuhn; Gregg Rabideau, 2024, "Towards Trusted Mars Autonomy: V&V of the M2020 On Board Planner’s Thermal Management Capabilities", https://doi.org/10.48577/jpl.MI9IUN, International Workshop on Planning and Scheduling for Space 2023, JPL Open Repository
Towards Trusted Mars Autonomy: V&V of the M2020 On Board Planner’s Thermal Management Capabilities |
Apr 8, 2024
Nimisha Mittal (394E); Verduzco, Pryscila; Mohr, Dave; Weinberg, Blaire; Schubert, Carson; Rangel, Richard; Harinath, Nandini; Kumar, Kanduri Kiran; Rogez, Francois; Bailey, Jason; Hu, Wallace; Kannan, S.; Kumar, Naresh; Paul, Debashish, 2024, "Mitigating Risk with Early Operational Testing - The NASA/ISRO Joint Thread Test Campaign on NISAR", https://doi.org/10.48577/jpl.WMW9ZH, International Conference on Spacecraft Mission Operations: SMOPS-2023, JPL Open Repository
Mitigating Risk with Early Operational Testing - The NASA/ISRO Joint Thread Test Campaign on NISAR |
Mar 25, 2024
Yoseph Bar-Cohen, 2024, "Acoustics and RF communication thru deep ice for application to ocean worlds exploration", https://doi.org/10.48577/jpl.MXSIR5, SPIE Smart Structures and Nondestructive Evaluation 2024, JPL Open Repository
One of NASA’s priorities is the in-situ exploration of ocean worlds in the solar system where there may potentially exist life under the ice shell. This requires reaching the ocean below through great depths of ice at extremely low temperatures. Jupiter’s moon Europa is such a ch... |
Mar 25, 2024
Yoseph Bar-Cohen, 2024, "Piezoelectric motor for cryogenic applications", https://doi.org/10.48577/jpl.D4KMUF, SPIE Smart Structures and Nondestructive Evaluation 2024, JPL Open Repository
Expanding the capabilities that are used in the NASA’s exploration of planetary bodies in our solar system would require mechanisms and actuators that can operate at cryogenic temperatures (-240 °C to -60 °C) in dusty environments. These applications include the exploration of lu... |
Mar 25, 2024
Hyeong Jae Lee, 2024, "Development of Elastic Wave Analyzer for Icy Sub-surfaces (EWAIS) in water-bearing worlds", https://doi.org/10.48577/jpl.DQQM2Q, SPIE Smart Structures and Nondestructive Evaluation 2024, JPL Open Repository
Active acoustic probing is important for supporting the investigation of icy subsurfaces and under-surface liquid water in potentially water-bearing habitable worlds. Many planetary orbital spacecraft and lander mission concepts have already been equipped with or are in the proce... |
