Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Travis Lechtenberg"'
Publikováno v:
2018 SpaceOps Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5472944b2d3a8dc043e13ac191502118
https://doi.org/10.2514/6.2018-2699
https://doi.org/10.2514/6.2018-2699
Publikováno v:
Space Weather. 11:34-45
[1] This paper examines atmospheric density estimated using precision orbit ephemerides (POE) from the CHAMP and GRACE satellites during short periods of greater atmospheric density variability. The results of the calibration of CHAMP densities deriv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::988c0daf6a126f68b605ef08b0ea4c7c
https://doi.org/10.1029/2012sw000848
https://doi.org/10.1029/2012sw000848
Autor:
Shiju Nair, Matt Duncan, Joshua Wysack, Chris Kilzer, Garland L. Dixon, Robert Harpold, James Winsley, Anthony Galvan, Travis Lechtenberg
Publikováno v:
SpaceOps 2016 Conference.
We present several different methods for generating realistic predictive covariance, including Monte-Carlo simulations and more direct linear methods which require the addition of process noise. The Monte-Carlo simulation starts with an epoch uncerta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f0c360247e61bb2934bf1f5178711bc
https://doi.org/10.2514/6.2016-2456
https://doi.org/10.2514/6.2016-2456
Publikováno v:
The Journal of the Astronautical Sciences. 59:84-100
This article examines atmospheric densities estimated using precision orbit ephemerides (POE) from several satellites including CHAMP, GRACE, and TerraSAR-X. The results of the calibration of atmospheric densities along the CHAMP and GRACE-A orbits d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::156473530de54149ecaaa0b63a529537
https://doi.org/10.1007/s40295-013-0007-4
https://doi.org/10.1007/s40295-013-0007-4
Publikováno v:
Journal of Spacecraft and Rockets. 48:166-174
O PERATIONAL orbit determination and orbit prediction experience suggests that the extreme upper atmosphere is more variable than the factors included in atmospheric density models commonly used in orbit propagation. Unmodeled atmospheric density var
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9aef4e906e27834396b6afa7469bc1ad
https://doi.org/10.2514/1.47624
https://doi.org/10.2514/1.47624
Autor:
Craig A. McLaughlin, Piyush M. Mehta, Eric Fattig, Travis Locke, Dhaval Mysore Krishna, Andrew Hiatt, Travis Lechtenberg
This research used precision orbit data to estimate neutral density along the orbits of the CHAMP, GRACE, and TerraSAR-X orbits. Comparisons with accelerometer data showed the precision orbit derived densities were more accurate than densities from t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63b3230296cea62e6ae508c3bd72c4be
https://doi.org/10.21236/ada582025
https://doi.org/10.21236/ada582025
Publikováno v:
AIAA/AAS Astrodynamics Specialist Conference.
This paper compares atmospheric density estimates obtained from precision orbit ephemerides (POE) for the CHAMP and GRACE satellites. GRACE-A and CHAMP POE data are used to derive atmospheric densities which are calibrated with densities derived from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66613742147cb39aacbbf50d5cfc3abb
https://doi.org/10.2514/6.2010-7976
https://doi.org/10.2514/6.2010-7976
Publikováno v:
AIAA/AAS Astrodynamics Specialist Conference and Exhibit.
Atmospheric density modeling is the greatest uncertainty in the dynamics of low Earth satellite orbits. Accurate density calculations are required to provide meaningful estimates of the atmospheric drag perturbing satellite motion. This paper uses pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04975507154961a7537ede1cba629d98
https://doi.org/10.2514/6.2008-6951
https://doi.org/10.2514/6.2008-6951