The WISE in-orbit calibration

Beth Fabinsky, Ingolf Heinrichsen, Amy Mainzer, Peter Eisenhardt

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


The Wide-field Infrared Survey Explorer mission will be executed by an earth-orbiting spacecraft carrying an infrared telescope cooled by a solid hydrogen cryostat. The purpose of the mission is to conduct an allsky survey at infrared wavelengths of 3.3, 4.7, 12 and 23 microns. The 7-month period of on-orbit operations includes one month of in-orbit checkout (IOC) and 6 months of all-sky survey scans from a dawn/dusk sun-synchronous orbit. The 30-day IOC is divided into two parts by the ejection of the telescope aperture cover some two weeks after launch. The first half of the IOC phase is primarily allocated to bus characterization; the latter half will be dedicated to cover-off instrument calibrations. In this discussion, we provide a description of the instrument calibrations to be conducted during IOC and how these plans will be carried out efficiently during the limited checkout period. The on-orbit instrument checkout is an extension of the overall WISE calibration plan. The duration of onboard calibration activities is limited by the lifetime of the cryogen and the need to begin the survey quickly. Key activities were selected because they must be done and can only be done in flight.

Original languageEnglish (US)
Title of host publicationObservatory Operations
Subtitle of host publicationStrategies, Processes, and Systems II
StatePublished - 2008
Externally publishedYes
EventObservatory Operations: Strategies, Processes, and Systems II - Marseille, France
Duration: Jun 24 2008Jun 26 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceObservatory Operations: Strategies, Processes, and Systems II

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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