The ROSAT High Resolution Imager (HRI) Calibration Report · Spectral Calibration of the ROSAT HRI · HRI Temporal Calibration Status

NOTE: The following three links refer to documents of the U.S. ROSAT Science Data Center at SAO server which are available in PostScript and/or HTML versions. The HTML versions are directly from the SAO server. The PostScript version is hold on MPE's ROSAT FTP server.

Authors: Andrea H. Prestwich, John Silverman, Jonathan McDowell, Paul Callanan, Steve Snowden, Edition: May 11, 1998

The gain (mean PHA channel) and quantum efficiency (count rate) of the ROSAT HRI are monitored frequently using N132D and the UV calibration lamp. The links below are to postscript files describing these quantities over the lifetime of the mission.

Main Link Page of ROSAT Calibration Documents at HEASARC/CALDB · NASA/GSOC Memos

NOTE: The following links refer to those documents of the HEASARC/CALDB server which are available in PostScript and HTML versions. The HTML versions are directly from HEASARC/CALDB server. The PostScript version are hold on MPE's ROSAT FTP server.

Desc.: Brief notes on the origin & limitations on each dataset, Code: CAL/ROS/93-016, Authors: George and Zellar, On-line versions available: (postscript, HTML), Maintained: by the CALDB, Notes: This document is continually being updated as new calibration datasets are delivered to the database (see also the OGIP CALDB's 'What's New' page)

Desc.: Details all the corrections applied to individual PSPC events during the conversion from their arrival position & pulse height channel to their corrected coordinates & pulse-invariant channel. This memo is essentially a copy of the original MPE memo TN-ROS-ME-ZA00/027, but updated and expanded to also refer to the FITS versions of the calibration files available from the CALDB. Code: CAL/ROS/95-010, Authors: Turner, George, Snowden, Yusaf, and Hasinger, On-line versions available: (postscript, HTML), Maintained: by the CALDB

Desc.: Demonstrates the magnitude of inaccuracies recently discovered in the temporal & spatial gain correction applied by SASS, and reviews the current status of the work being done at NASA/GSFC & MPE to understand and correct for these. Code: CAL/ROS/95-003, Authors: Snowden, Turner, George, Yusaf, Predehl and Prieto, On-line versions available: (postscript, HTML), Maintained: by the CALDB

Desc.: Gives a detailed description of an analytical parameterization of the PSF by Hasinger etal; as published in Legacy, 4, 40. Code: CAL/ROS/93-015, Authors: Hasinger, Boese, Predehl, Turner, Yusaf, George and Rohrbach, On-line versions available: (postscript, HTML), Maintained: by the CALDB, Notes: Published in Legacy, 4, 40. This document is a follow-up to the parameterization of the on-axis (only) PSF described in CAL/ROS/92-001 (and with an addedum CAL/ROS/92-001a). Some Figures currently unavailable.

Desc.: Informal study note. Code: CAL/ROS/93-007, Authors: Turner, On-line versions available: (postscript, HTML), Maintained: by the CALDB, Notes: See also CAL/ROS/95-003.

Desc.: Addendum to the memo CAL/ROS/92-001 comparing the analytical parameterization of the PSF with a high signal-to-noise dataset; as published in Legacy, 3, 46. Code: CAL/ROS/92-001a, Authors: Hasinger, Turner, George and Boese, On-line versions available: (postscript, HTML), Maintained: by the CALDB Notes: Published in Legacy, 3, 46. This is only a brief addendum to the original memo (CAL/ROS/92-001) which describes the parameterization of the on-axis PSF. See also the parameterization of the off-axis PSF is given in CAL/ROS/93-015.

Desc.: Gives a detailed description of an analytical parameterization of the PSF by Hasinger etal; as published in Legacy, 2, 77. Code: CAL/ROS/92-001, Authors: Hasinger, Turner, George and Boese, On-line versions available: (postscript, HTML), Maintained: by the CALDB, Notes: Published in Legacy, 2, 77. A brief addendum (CAL/ROS/92-001a) is also available in which the parameterization is compared to a later high signal-to-noise observational dataset. See also the parameterization of the off-axis PSF is given in CAL/ROS/93-015.

Desc.: As title, discussing some potential problems in extracting ROSAT PSPC spectra, using a small extraction cell based on detector coordinates, unwobbled data or a very brief observation. Code: CAL/ROS/94-005, Authors: Turner, On-line versions available: (postscript, HTML), Maintained: by the CALDB, Notes: In the postscript version, figures are only available as separate PS files (Fig1, Fig2).