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Space Technology 5 Launch and OperationsThe three spacecraft that made up the Space Technology 5 (ST5) mission were successfully launched and deployed from their Pegasus launch vehicle on March 22, 2006. Final contact with the spacecraft occurred on June 30, 2006, with all Level 1 requirements met. By the end of the mission, all ST5 technologies had been validated, all on-board attitude control system (ACS) modes had been successfully demonstrated, and the desired constellation configurations had been achieved to demonstrate the ability of small spacecraft to take quality science measurements, However, during those 100 days (ST5 was planned to be a 90-day mission), there were a number of anomalies that made achieving the mission goals very challenging. This paper will discuss: the chronology of the ST5 launch and early operations, work performed to diagnose and work-around a sun sensor anomaly, spacecraft tests devised to demonstrate correct operation of all onboard ACS modes, the maneuver plan performed to achieve the desired constellation, investigations performed by members of the ST5 GN&C and Science teams of an anomalous spin down condition, and the end-of-life orbit and passivating operations performed on the three spacecraft.
Document ID
20070018186
Document Type
Conference Paper
Authors
O'Donnell, James R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Concha, Marco A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Morrissey, James R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Placanica, Samuel J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Russo, Angela M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Tsai, Dean C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 23, 2013
Publication Date
February 7, 2007
Subject Category
Launch Vehicles And Launch Operations
Report/Patent Number
AAS 07-091
Meeting Information
Meeting: 30th Annual AAS Guidance and Control Conference
Location: Breckenridge, CO
Country: United States
Start Date: February 3, 2007
End Date: February 7, 2007
Sponsors: American Astronautical Society
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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