1 to 10 of 6,761 Results
Mar 2, 2024
Nick Waldram, 2024, ""Crawl, Walk, Then Run” – Simple Planner’s Incremental Roll-Out in Perseverance Operations", https://doi.org/10.48577/jpl.MREFNQ, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
—The Simple Planner (SP), a concept of operations(con-ops) facilitating autonomous scheduling onboard Mars2020’s Perseverance rover, is a milestone in terms of scale andvisibility of autonomy in space missions. At the core of SP liesthe Onboard Planner (OBP) software which govern... |
May 18, 2004
Goods, Daniel E., 2004, ""You want to do what?" being an artist at Jet Propulsion Laboratory", https://hdl.handle.net/2014/39147, 7th Workshop on Space Science, Technology and the Arts , Noordwijk, The Netherlands, May 18-21, 2004, JPL Open Repository
No abstract provided |
Feb 1, 2004
Kennedy, Brian M.; Carranza, Eric; Williams, Ken, 2004, "1-AU calibration activities for Stardust Earth Return", https://hdl.handle.net/2014/38152, AAS/AIAA Space Flight Mechanics Meeting, Maui, HI, February 8-12, 2004, JPL Open Repository
In January 2006, the Stardust spacecraft will deliver its Sample Return Capsule to the recovery site at the Utah Test and Training Range. Stardust will return dust samples from comet Wild 2 colleced in January 2004. During Earth return, the trajectory will be perturbed by small f... |
Oct 9, 2012
Hemmati, Hamid; Kovalik, Joseph M., 2012, "10 Gb/s Lasercom terminal for satellites", https://hdl.handle.net/2014/43097, International Conference on Space Optical Systems (ICSOS), Corsica, France, October 9-12, 2012, JPL Open Repository
Progress in the development and airplane testing of a highly compact, low mass and power consumption 10 Gb/s laser communications terminal is reported. This terminal intended for use with Earth-orbiting spacecraft. Design approach, concept of operation, and results of laboratory... |
Mar 28, 2005
Gunapala, Sarath D.; Bandara, Sumith V.; Liu, John K.; Hill, Cory J.; Rafol, S. B.; Mumolo, Jason M.; Trinh, Joseph T.; Tidrow, M. Z.; Le Van, P. D., 2005, "1024x1024 pixel MWIR and LWIR QWIP focal plane arrays and 320x256 MWIR : LWIR pixel colocated simultaneous dualband QWIP focal plane arrays", https://hdl.handle.net/2014/40597, 31st SPIE Infrared Technology & Applications, Orlando, Florida, March 28 - April, 2005., JPL Open Repository
Mid-wavelength infrared (MWIR) and long-wavelength in£rared (LWIR) 1024x1024 pixel quantum well infrared photodetector (QWIP) focal planes have been demonstrated with excellent imaging performance. The MWIR QWIP detector array has demonstrated a noise equivalent differential temp... |
Jun 24, 2013
Shaw, Matt; Stern, Jeffrey A.; Birnbaum, Kevin; Srinivasan, Meera; Cheng, Michael; Quirk, Kevin; Biswas, Abhijit; Marsili, Francesco; Farr, William; Verma, Varun; Mirin, Richard P.; Nam, Sae Woo, 2013, "12-Pixel WSi SNSPD arrays for the Lunar Lasercomm OCTL Terminal", https://hdl.handle.net/2014/44081, 15th International Workshop on Low Temperature Detectors, Pasadena, California, June 24-29, 2013, JPL Open Repository
No abstract provided |
Jun 19, 2022
Dan Goebel, 2022, "13,000 h Wear Test of a Heaterless Low-Current Lanthanum Hexaboride Hollow Cathode", https://doi.org/10.48577/jpl.UHPHZ8, 37th International Electric Propulsion Conference, JPL Open Repository
As part of the flight qualification of the Hall thruster component of the Ascendant Sub-kW Transcelestial Electric Propulsion System (ASTRAEUS), the thruster’s proto-flight compact heaterless lanthanum hexaboride hollow cathode was subjected to a long-duration wear test. The cath... |
Mar 3, 2008
Sherrit, S.; Bao, X.; Badescu, M.; Aldrich, J.; Bar-Cohen, Y.; Biederman, W., 2008, "1KW power transmission using Wireless Acoustic-Electric Feed-through (WAEF)", https://hdl.handle.net/2014/41735, ASCE American Society of Civil Engineers, Earth and Space 2008, Long Beach, California, March 03, 2008., JPL Open Repository
A variety of space applications require the delivery of power into sealed structures. Since the structural integrity can be degraded by holes for cabling we present an alternative method of delivering power and information using stress waves to the internal space of a sealed stru... |
May 31, 2004
Qiu, Yueming; Uhl, David; Keo, Sam, 2004, "2 μn InAsSb quantum-dot lasers", https://hdl.handle.net/2014/41125, 16th International Conference on Indium Phosphide, Kagoshima, Japan, May 31 - June 4. 2004., JPL Open Repository
InAsSb quantum-dot lasers near 2 pm were demonstrated in cw operation at room temperature with a threshold current density of 733 A,/cm², output power of 3 mW/facet and a differential quantum efficiency of 13%. |
Oct 9, 2018
Forouhar, Siamak; Briggs, Ryan; Bagheri, Mahmood; Frez, Clifford; Fradet, Mathieu, 2018, "2.0 um Wavelength Injection Seed Semiconductor Laser for Lidar Transmitter for Global-Scale Measurements of CO2", https://hdl.handle.net/2014/48619, International Conference on Space Optics (ICSO 2018), Chania, Greece, October 9 - 12, 2018, JPL Open Repository
Many of the high accuracy Earth science survey missions are planned to use laser-based remote sensing instruments. The 2-μm laser wavelength is of particular interest due to the presence of many CO2 and H20 absorption lines in its vicinity1. Transmitter architectures are typicall... |
