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NASA-LLIS-0358
Lessons Learned - Magellan Solar Array Drive Jitte
Year: 1994
Abstract: Abstract:
A jitter in the solar array drive control loop during Venus mapping operations was caused by a deficiency, at oblique sun angles, in the algorithm that is used in Flight Software (FSW) to determine whether a solar panel position correction is required. Conduct thorough reviews to verify math models of hardware and to understand the implications of simplification of math models on performance in flight. Use finer resolution display scales to identify subtle instabilities.
A jitter in the solar array drive control loop during Venus mapping operations was caused by a deficiency, at oblique sun angles, in the algorithm that is used in Flight Software (FSW) to determine whether a solar panel position correction is required. Conduct thorough reviews to verify math models of hardware and to understand the implications of simplification of math models on performance in flight. Use finer resolution display scales to identify subtle instabilities.
Subject: AACS
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T17:30:05Z | |
| date available | 2017-09-04T17:30:05Z | |
| date copyright | 34681 | |
| date issued | 1994 | |
| identifier other | CUAEQCAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std/handle/yse/153125 | |
| description abstract | Abstract: A jitter in the solar array drive control loop during Venus mapping operations was caused by a deficiency, at oblique sun angles, in the algorithm that is used in Flight Software (FSW) to determine whether a solar panel position correction is required. Conduct thorough reviews to verify math models of hardware and to understand the implications of simplification of math models on performance in flight. Use finer resolution display scales to identify subtle instabilities. | |
| language | English | |
| title | NASA-LLIS-0358 | num |
| title | Lessons Learned - Magellan Solar Array Drive Jitte | en |
| type | standard | |
| page | 3 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1994 | |
| contenttype | fulltext | |
| subject keywords | AACS | |
| subject keywords | Hardware | |
| subject keywords | Mathematical Models | |
| subject keywords | Safety & Mission Assurance | |
| subject keywords | Software |