Execution of the Spitzer in-orbit checkout and science verification plan

Miles, John W.; Linick, Sue H.; Boyles, C. Allan; Garcia, Mark; Gilbert, John B.; Long, Stacia M.; Werner, M. W.; Wilson, Robyn

doi:10.1117/12.552330

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…To date the Spitzer spacecraft has been reasonably free from operational anomalies, allowing it to realize its high science return. Details of the in-orbit checkout and science validation period operations can be found in Miles et al 17 As of May 19, 2004, the spacecraft has entered safe mode five times, with a summary of the causes given in Table 3.…”

Section: Operations Performancementioning

confidence: 99%

On-orbit performance of the Spitzer Space Telescope

et al. 2004

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The Spitzer Space Telescope (formally known as SIRTF) was successfully launched on August 25, 2003, and has completed its initial in-orbit checkout and science validation and calibration period. The measured performance of the observatory has met or exceeded all of its high-level requirements, it entered normal operations in January 2004, and is returning high-quality science data. A superfluid-helium cooled 85 cm diameter telescope provides extremely low infrared backgrounds and feeds three science instruments covering wavelengths ranging from 3.6 to 160 microns. The telescope optical quality is excellent, providing diffraction-limited performance down to wavelengths below 6.5 microns. Based on the first helium mass and boil-off rate measurements, a cryogenic lifetime in excess of 5 years is expected. This presentation will provide a summary of the overall performance of the observatory, with an emphasis on those performance parameters that have the greatest impact on its ultimate science return.

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Section: Operations Performancementioning

confidence: 99%

On-orbit performance of the Spitzer Space Telescope

et al. 2004

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“…Launched on August 25, 2003, Spitzer was placed into an Earth-trailing solar orbit, which positions the spacecraft well outside any shielding effects of the Earth's magnetosphere or enhancements in charged particle flux due to the Earth's radiation belts 9,11 . Following launch, Spitzer underwent a 3-month evaluation during the In-Orbit Checkout (IOC) and Science Verification periods 12 , during which the telescope was focused 13,14 and a functional checkout of the instruments and observational templates was performed 2 . Since launch, IRAC has been operated for more than 7000 hours, collecting a wealth of calibration and science data.…”

Section: Introductionmentioning

confidence: 99%

“…Following launch, Spitzer underwent a 3-month evaluation during the In-Orbit Checkout (IOC) and Science Verification periods 12 , during which the telescope was focused 13,14 and a functional checkout of the instruments and observational templates was performed 2 . Since launch, IRAC has been operated for more than 7000 hours, collecting a wealth of calibration and science data.…”

Section: Introductionmentioning

confidence: 99%

The effects of cosmic rays and solar flares on the IRAC detectors: the first two years of in-flight operation

et al. 2006

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The Infrared Array Camera (IRAC) is a four-channel camera on the Spitzer Space Telescope, one of three focal plane science instruments. IRAC uses two pairs of 256×256 pixel InSb and Si:As IBC detectors to provide simultaneous imaging at 3.6, 4.5, 5.8, and 8 μm. IRAC experiences a flux of cosmic rays and solar protons that produce transient effects in science images from each of the arrays, with 4 -6 pixels per second being affected during each integration. During extreme solar flares, IRAC experiences a much higher rate of transients which affects the science data quality. We present cosmic ray rates and observed detector characteristics for IRAC during the first two years of science operation, and rates observed in a period of elevated solar proton flux during an intense solar flare in January 2005. We show the changes to the IRAC detectors observed since launch, and assess their impacts to the science data quality.

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Spitzer Space Telescope: An Operational Learning Experience

Wilson¹

2008

SpaceOps 2008 Conference

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Execution of the Spitzer in-orbit checkout and science verification plan

Cited by 3 publications

References 7 publications

On-orbit performance of the Spitzer Space Telescope

On-orbit performance of the Spitzer Space Telescope

The effects of cosmic rays and solar flares on the IRAC detectors: the first two years of in-flight operation

Spitzer Space Telescope: An Operational Learning Experience

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