NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Cassini Orbit Trim Maneuvers at Saturn - Overview of Attitude Control Flight OperationsThe Cassini spacecraft has been in orbit around Saturn since July 1, 2004. To remain on the planned trajectory which maximizes science data return, Cassini must perform orbit trim maneuvers using either its main engine or its reaction control system thrusters. Over 200 maneuvers have been executed on the spacecraft since arrival at Saturn. To improve performance and maintain spacecraft health, changes have been made in maneuver design command placement, in accelerometer scale factor, and in the pre-aim vector used to align the engine gimbal actuator prior to main engine burn ignition. These and other changes have improved maneuver performance execution errors significantly since 2004. A strategy has been developed to decide whether a main engine maneuver should be performed, or whether the maneuver can be executed using the reaction control system.
Document ID
20150006924
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Burk, Thomas A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
April 29, 2015
Publication Date
August 8, 2011
Subject Category
Spacecraft Design, Testing And Performance
Meeting Information
Meeting: AIAA Guidance, Navigation, and Control Conference
Location: Portland, OR
Country: United States
Start Date: August 8, 2011
End Date: August 11, 2011
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Other
Keywords
spacecraft configuration
Deep Space Network
flight operations
Cassini attitude control

Available Downloads

There are no available downloads for this record.
No Preview Available