21 to 30 of 2,897 Results
May 8, 2024
Cedric David, 2024, "Decentralized Reactive Satellite Constellation Planning for Event Observation", https://doi.org/10.48577/jpl.3MXUBE, Journal of Spacecraft and Rockets, JPL Open Repository
Satellite observation planning is an active field of research that aims to improve the quantity and utility of observations by agile or taskable satellites. Most of the existing work focuses on observing static ground points with constant rewards, which is not sufficient to captu... |
May 8, 2024
Steve Chien, 2024, "Exploring Beyond Earth using Space Robotics: Update", https://doi.org/10.48577/jpl.2EZLHN, science robotics, JPL Open Repository
Robotic spacecraft enable exploration of our solar system, beyond our human presence. While spacecraft have explored every planet in the solar system, the frontiers of space robotics are at the cutting edge of landers, rovers, and now atmospheric explorers where robotic spacecraf... |
May 8, 2024
Deacon Nemchick, 2024, "Supporting Information: Simplified Approach for Infrared Photodissociation Spectroscopy of Water-Tagged Ions with a Widely Tunable Quantum Cascade Laser", https://doi.org/10.48577/jpl.LQ0ZKS, Letter to Analytical chemistry, JPL Open Repository
This work presents a benchtop method for collecting the room temperature, gas phase infrared (IR) action spectra of protonated amino acids and their isomers. The adopted setup uses a minimally modified commercial electrospray ionization ion trap mass spectrometer (ESI-MS) coupled... |
May 7, 2024
Brandi Carrier, 2024, "Thresholds of Temperature and Time for Mars Sample Return: Final Report of The Mars Sample Return Temperature-Time Tiger Team", https://doi.org/10.48577/jpl.9L1CQV, Astrobiology, JPL Open Repository
The Time-Temperature Tiger Team (T4) was chartered by NASA and ESA to evaluate the risks to the scientific return of Mars Sample Return (MSR) samples if they are exposed to temperatures between +30 and +60 ⁰C. Thirteen scientists, were selected to represent the scientific discipl... |
May 6, 2024
Steve Chien, 2024, "Sensorweb Systems for Global High-Resolution Monitoring of Environmental Phenomena", https://doi.org/10.48577/jpl.AGWI0O, Journal of Aerospace Information Systems, JPL Open Repository
Many science phenomena are difficult to observe because they occur infrequently and without warning. Over the course of the last twenty years, the concept of a "sensorweb", or a network of interdependent instruments that autonomously coordinate to observe phenomena of interest, h... |
May 6, 2024
Clara O'Farrell, 2024, "Reconstructed Performance of the Mars 2020 Parachute Decelerator System", https://doi.org/10.48577/jpl.YX2DJD, Journal of Spacecraft and Rockets, JPL Open Repository
On February 18, 2021 the Mars 2020 mission’s Perseverance rover successfully landed on Jezero crater. The spacecraft’s Entry, Descent, and Landing (EDL) sequence included a 21.53-m supersonically deployed Disk-Gap-Band parachute that was a strengthened version of the parachute us... |
May 2, 2024
Corey Cochrane, 2024, "PlanetMag manuscript", https://doi.org/10.48577/jpl.OBBCJ8, Earth and Space Science, JPL Open Repository
Spacecraft investigation of planets within the solar system have provided a rich context for understanding their dynamic magnetic environments. Magnetic field measurements are able to tell us much about the planet’s interior dynamics, composition, and evolutionary timeline. Magne... |
May 1, 2024
Mattia Poinelli, 2024, "Can rifts alter ocean dynamics beneath ice shelves?", https://doi.org/10.48577/jpl.QM6MHD, The Cryosphere, JPL Open Repository
Land ice discharge from the Antarctic continent into the ocean is restrained by ice shelves, floating extensions of grounded ice that buttress the glacier freshwater outflow. The ongoing thinning of these ice shelves - largely due to enhanced melting at their base in response to... |
May 1, 2024
Leo Martire, 2024, "The JPL-GIM Algorithm and Products: Multi-GNSS High-Rate Global Mapping of Total Electron Content", https://doi.org/10.48577/jpl.X8OESD, Journal of Geodesy, JPL Open Repository
No abstract available. |
May 1, 2024
Arturo Casillas, 2024, "Mars 2020 Descent Stage Integrated Propulsion Subsystem: Changes from MSL and Flight Performance", https://doi.org/10.48577/jpl.VBDNQ0, Journal of Spacecraft and Rockets, JPL Open Repository
On February 18, 2021, NASA’s Mars 2020 mission successfully landed the Perseverance rover in Jezero Crater, the heaviest interplanetary rover ever built, on the surface of Mars. Following up on the successful Entry, Descent and Landing of the Curiosity rover of the Mars Science L... |
