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Geostationary operational environmental satellite (goes) gyro temperature model
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Noonan, C. H. Garrick, J. Rowe, J. N. |
| Copyright Year | 1996 |
| Description | The geostationary Operational Environmental Satellite (GOES) 1/M series of spacecraft are geostationary weather satellites that use the latest in weather imaging technology. The inertial reference unit package onboard consists of three gyroscopes measuring angular velocity along each of the spacecraft's body axes. This digital integrating rate assembly (DIRA) is calibrated and used to maintain spacecraft attitude during orbital delta-V maneuvers. During the early orbit support of GOES-8 (April 1994), the gyro drift rate biases exhibited a large dependency on gyro temperature. This complicated the calibration and introduced errors into the attitude during delta-V maneuvers. Following GOES-8, a model of the DIRA temperature and drift rate bias variation was developed for GOES-9 (May 1995). This model was used to project a value of the DIRA bias to use during the orbital delta-V maneuvers based on the bias change observed as the DIRA warmed up during the calibration. The model also optimizes the yaw reorientation necessary to achieve the correct delta-V pointing attitude. As a result, a higher accuracy was achieved on GOES-9 leading to more efficient delta-V maneuvers and a propellant savings. This paper summarizes the: Data observed on GOES-8 and the complications it caused in calibration; DIRA temperature/drift rate model; Application and results of the model on GOES-9 support. |
| File Size | 397766 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960035763 |
| Archival Resource Key | ark:/13960/t12p0292d |
| Language | English |
| Publisher Date | 1996-05-01 |
| Access Restriction | Open |
| Subject Keyword | Astrodynamics Goes Satellites Attitude Inclination Error Analysis Calibrating Bias Satellite Attitude Control Gyroscopic Stability Angular Velocity Drift Rate Inertial Guidance Temperature Profiles Orbital Maneuvers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
