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NASA-LLIS-0279
Lessons Learned – Exclusive use of Relative Spatial Positioning Commands for Mechanisms
Year: 1993
Abstract: Abstract:
The Mariner '69 Scan Platform and the Viking Orbiter Imaging Instrument Filter Wheel were operated with relative position stepping commands. In both cases, anomalies caused actual position to become different than the desired position. (This lesson largely duplicates #0405) Provide an explicit or absolute positioning capability in which the device can be commanded to a specific position, allowing development of sequences in which periodic positioning to absolute locations can be executed. (This recommendation largely duplicates #0405 (D))
The Mariner '69 Scan Platform and the Viking Orbiter Imaging Instrument Filter Wheel were operated with relative position stepping commands. In both cases, anomalies caused actual position to become different than the desired position. (This lesson largely duplicates #0405) Provide an explicit or absolute positioning capability in which the device can be commanded to a specific position, allowing development of sequences in which periodic positioning to absolute locations can be executed. (This recommendation largely duplicates #0405 (D))
Subject: Design
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T18:28:55Z | |
| date available | 2017-09-04T18:28:55Z | |
| date copyright | 07/12/1993 | |
| date issued | 1993 | |
| identifier other | IRZCQCAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;query=autho1216AF679D/handle/yse/211085 | |
| description abstract | Abstract: The Mariner '69 Scan Platform and the Viking Orbiter Imaging Instrument Filter Wheel were operated with relative position stepping commands. In both cases, anomalies caused actual position to become different than the desired position. (This lesson largely duplicates #0405) Provide an explicit or absolute positioning capability in which the device can be commanded to a specific position, allowing development of sequences in which periodic positioning to absolute locations can be executed. (This recommendation largely duplicates #0405 (D)) | |
| language | English | |
| title | NASA-LLIS-0279 | num |
| title | Lessons Learned – Exclusive use of Relative Spatial Positioning Commands for Mechanisms | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1993 | |
| contenttype | fulltext | |
| subject keywords | Design | |
| subject keywords | Operations | |
| subject keywords | Spacecraft |