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Thermal Assessment of Swift Instrument Module Thermal Control System during First 2.5 Years in Flight
Technical Paper
2007-01-3083
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
On Day 97, 2005, a temperature excursion of the Burst Alert Telescope (BAT) loop heat pipe (LHP) #1 compensation chamber (CC) caused this LHP shut down. It had no impact on the Gamma Ray Burst (GRB) detection because LHP #0 was nominal. After LHP #1 was started up and its primary heat controller was disabled on Day 98, both LHPs have been nominal. On Day 337, 2004, the X-Ray Telescope (XRT) thermo-electric cooler (TEC) power supply (PS) suffered a single point failure. The charge-coupled device (CCD) has been cooled by the radiator passively to -50°C or colder most of the time. The CCD temperature meets the main objective of pinpointing GRB afterglow positions. With these anomalies overcome, the Instrument Module (IM) thermal control system (TCS) is nominal during the first 2.5 years in flight.
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Citation
Choi, M., "Thermal Assessment of Swift Instrument Module Thermal Control System during First 2.5 Years in Flight," SAE Technical Paper 2007-01-3083, 2007, https://doi.org/10.4271/2007-01-3083.Also In
References
- Choi, M. K. “AZW-LA-II White Paint on Swift : Lessons Learned from First Time Flying on Spacecraft Radiators,” 2 nd International Energy Conversion Engineering Conf. Proceedings Providence, RI 16-19 Aug. 2004 Paper Number: AIAA-2004-5685
- Choi, M. K. “ Swift BAT Loop Heat Pipe Thermal System Characteristics and Ground/ Flight Operation Procedure” 1 st International Energy Conversion Engineering Conf. Proceedings Portsmouth, VA 17-21 Aug. 2003 Paper No. AIAA-2003-6077
- Choi, M. K. “Thermal Assessment of Swift BAT Instrument Thermal Control System in Flight,” 35 th International Conf. on Environmental Systems Rome, Italy 11-14 July 2005 SAE Paper Number 2005-01-3037
- Choi, M. K. “Maintaining Swift XRT CCD at -50°C or Colder After TEC Power Supply Failure,” 3 rd International Energy Conversion Engineering Conf. Proceedings San Francisco, CA 15-18 Aug. 2005 Paper Number: AIAA-2005-5588
- Kennea, J. et al. “In-Orbit XRT CCD Temperature Prediction Tool,” XRT Thermal Anomaly Review Team Meeting Penn State University, State College PA Jan. 18 2005