Temperature dependent calibration products of the SWIFT x-ray telescope

Astronomy and Astrophysics – Astronomy

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

The X-Ray Telescope (XRT) on board the Swift satellite is a sensitive imaging spectrometer utilizing a MAT-22 CCD at the Focal plane. The system was designed to operate the CCD at -100 °C +/- 1 °C for the duration of the mission. Due to a failure of the temperature control sub-system, the CCD operates under variable thermal conditions dictated by the view factor of the radiator- heatpipe sub-system to the Earth and sun. A temperature variation of up to 5° C is seen during a single orbit due to the satellite transition from sun light into eclipse and the full operational regime of the instrument ranges from temperatures of -75°C to -45°C due to the persistent heating/cooling effects of satellite orientation to the sun and earth. To maintain the highest quality data products possible from the XRT data stream, a recalibration of the XRT is required to account for this variable thermal environment. We present the methodology for and results from a temperature dependent analysis of on-orbit XRT data, collected during the Swift commissioning phase, used to produce gain, bias and warm pixel calibration products. We also discuss the quality of XRT science products capable with these temperature dependent calibration files and future plans for updates to these calibration products.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Temperature dependent calibration products of the SWIFT x-ray telescope does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Temperature dependent calibration products of the SWIFT x-ray telescope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature dependent calibration products of the SWIFT x-ray telescope will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1071050

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.