Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ian J. Gravseth"'
Publikováno v:
2020 IEEE Aerospace Conference.
CloudSat, now in its 13th year on orbit, has employed various strategies over its lifetime to compensate for a weakened battery and the loss of a reaction wheel. The creative efforts required to keep the mission going have been documented in a number
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dae8f9f61907169f3c0eb6a77d50295
https://doi.org/10.1109/aero47225.2020.9172695
https://doi.org/10.1109/aero47225.2020.9172695
Autor:
Ian J. Gravseth
Publikováno v:
2016 IEEE Aerospace Conference.
Since joining the A-Train in May 2006, CloudSat actively maintained its orbit and flew in tight formation with CALIPSO. On April 17th of 2011 CloudSat experienced a severe battery anomaly which caused the vehicle to fault into a passive but power pos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e84b0a3b2e1f8ef2e6e38117fcc67c9
https://doi.org/10.1109/aero.2016.7500578
https://doi.org/10.1109/aero.2016.7500578
Autor:
Ian J. Gravseth, Brian Pieper
Publikováno v:
2014 IEEE Aerospace Conference.
Since joining the A-Train in May 2006, CloudSat actively maintained its orbit and flew in tight formation with CALIPSO. This required CloudSat to perform orbit maintenance burns approximately every two to three weeks and to also perform larger inclin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06007d3975c04480c29d1a0d6bc04380
https://doi.org/10.1109/aero.2014.6836232
https://doi.org/10.1109/aero.2014.6836232
Publikováno v:
Space Debris. 1:113-125
Knowledge of the observable properties of orbital debris is necessary to validate debris models for both the low Earth orbit (LEO) and the geosynchronous Earth orbit (GEO). Current methods determine the size and mass of orbital debris based on knowle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de6c5ffb5ae54e4a4623f90eb5bc0b6f
https://doi.org/10.1023/a:1026526428303
https://doi.org/10.1023/a:1026526428303
Publikováno v:
Journal of Spacecraft and Rockets. 33:433-437
Over the past several years, the interest in orbital debris has grown because of the hazard it poses to operating satellites. Models of the debris environment depend on accurate assessments of the masses and sizes of debris particles. Utilizing data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::308a2eb1bc58c1846edd5a1cd1ed3c18
https://doi.org/10.2514/3.26779
https://doi.org/10.2514/3.26779
Autor:
Robert D. Culp, Ian J. Gravseth
Publikováno v:
Journal of Spacecraft and Rockets. 33:262-266
An investigation of the reflective properties of 19 common spacecraft materials was conducted. The experimental setup and the testing procedure are discussed, and a new composite albedo phase function is proposed. Tabular data and graphs of the spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7dab21e82fc0a0c8e1a5906a383c44e
https://doi.org/10.2514/3.26750
https://doi.org/10.2514/3.26750
Publikováno v:
AIAA Guidance, Navigation, and Control Conference.
NASA’s future plans for space vehicles call for the ability to automatically rendezvous and dock (AR&D) with the International Space Station (ISS) and other targets. This requires sensors and algorithms capable of determining the relative position
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5a9f1c30e907395058b5623afd5d12d
https://doi.org/10.2514/6.2012-4781
https://doi.org/10.2514/6.2012-4781
Publikováno v:
SPIE Proceedings.
Ball Aerospace & Technologies Corp. has demonstrated real-time processing of 3D imaging LADAR point-cloud data to produce the industry's first time-of-flight (TOF) 3D video capability. This capability is uniquely suited to the rigorous demands of spa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb32dd78ef14183e809c8b0b152166af
https://doi.org/10.1117/12.720143
https://doi.org/10.1117/12.720143
Publikováno v:
Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter.
From hitting a comet to long-term observations to find and characterize extrasolar planets, the spacecraft platform pointing accuracy and stability are fundamental. We describe the pointing requirements for Deep Impact, Kepler, and future extrasolar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d34492b658355354eb173c2b2b853a7
https://doi.org/10.1117/12.669068
https://doi.org/10.1117/12.669068
Autor:
J. Leitch, C. Noecker, J. Bladt, M. Lieber, Ian J. Gravseth, W. Jackson, D.J. Wiemer, B. Carpenter, K. Epstein, W.D. Deininger, B. Landin, R. Linfield, W. Davis, E.H. Sholes, K. Gwin
Publikováno v:
2003 IEEE Aerospace Conference Proceedings (Cat. No.03TH8652).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cccc1f9b5bc904061e6d4c547208bfa
https://doi.org/10.1109/aero.2003.1235186
https://doi.org/10.1109/aero.2003.1235186