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NASA-LLIS-2536
Lessons Learned - Excess Cooling of MRO HiRISE Sunshade
Year: 2010
Abstract: Abstract:
A routine in-flight MRO spacecraft sequence placed the HiRISE instrument in an attitude where the sunshade was shaded for an extended period. This unexpectedly caused the sunshade to drop below the allowable flight temperature, where thermal stress could damage the structure. Due to budget pressures, the instrument contractor had failed to update the integrated spacecraft thermal model to reflect changes to the thermal blanket design. Systems with a complex thermal design, like HiRISE, require an accurate and up-to-date thermal model.
A routine in-flight MRO spacecraft sequence placed the HiRISE instrument in an attitude where the sunshade was shaded for an extended period. This unexpectedly caused the sunshade to drop below the allowable flight temperature, where thermal stress could damage the structure. Due to budget pressures, the instrument contractor had failed to update the integrated spacecraft thermal model to reflect changes to the thermal blanket design. Systems with a complex thermal design, like HiRISE, require an accurate and up-to-date thermal model.
Subject: Additional Categories.Environment
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:37:53Z | |
| date available | 2017-09-04T15:37:53Z | |
| date copyright | 03/30/2010 | |
| date issued | 2010 | |
| identifier other | OWKFSCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/39852 | |
| description abstract | Abstract: A routine in-flight MRO spacecraft sequence placed the HiRISE instrument in an attitude where the sunshade was shaded for an extended period. This unexpectedly caused the sunshade to drop below the allowable flight temperature, where thermal stress could damage the structure. Due to budget pressures, the instrument contractor had failed to update the integrated spacecraft thermal model to reflect changes to the thermal blanket design. Systems with a complex thermal design, like HiRISE, require an accurate and up-to-date thermal model. | |
| language | English | |
| title | NASA-LLIS-2536 | num |
| title | Lessons Learned - Excess Cooling of MRO HiRISE Sunshade | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;2010 | |
| contenttype | fulltext | |
| subject keywords | Additional Categories.Environment | |
| subject keywords | Additional Categories.Flight Equipment | |
| subject keywords | Additional Categories.Flight Operations | |
| subject keywords | Additional Categories.Hardware | |
| subject keywords | Additional Categories.Payloads | |
| subject keywords | Additional Categories.Spacecraft | |
| subject keywords | Engineering Design (Phase C/D).Spacecraft and Spacecraft Instruments |