On-orbit calibration of the Ultraviolet/Optical telescope (UVOT) on Swift: Part 2

A. A. Breeveld, T. S. Poole, C. H. James, A. J. Blustin, S. R. Rosen, W. Landsman, P. Boyd, Caryl Ann Gronwall, S. Holland, S. D. Hunsberger, M. Ivanushkina, K. O. Mason, K. McGowan, M. De Pasquale, P. W.A. Roming, M. Still

Research output: Contribution to journalConference articlepeer-review


The Ultraviolet and Optical telescope (UVOT) on board the SWIFT observatory, plays an important part in the quest to understand gamma-ray bursts. As its name suggests, the UVOT obtains ultraviolet and optical data at high time resolution, with 7 broad band filters and 2 low resolution grisms. This paper forms the second of a pair of papers presenting the initial on-board calibration of the UVOT. The first one (Part 1) deals with distortion, large and small scale sensitivity variations and the telescope point spread function. In this paper we cover the following topics: the photometry of the broadband filters including colour transformations and linearity; the wavelength calibration and sensitivities of the grisms; time resolution and red leak.

Original languageEnglish (US)
Article number58981E
Pages (from-to)1-12
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 1 2005

All Science Journal Classification (ASJC) codes

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


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