ROSAT Calibration Documents

"The ROSAT point spread functions and associates" F. G. Boese, 2000, A&AS, 141, 507.
"The energy-dependent temporal variation of the ROSAT PSPC gain" M. A. Prieto, G. Hasinger, and S. L. Snowden, 1996, A&AS, 120, 187.
"ROSAT Boresight Correction" Martin Kurster & Rainer Gruber, MPE, 1996. This discusses improving source positions for ROSAT pointed data processed with SASS versions prior to SASS version 7.0.
"The ROSAT Spacecraft Clock to UTC correlation", Peter Predehl, MPE, 1999. contains the correlation between UTC and the ROSAT onboard clock for the whole mission since launch.

CAL/ROS/95-010: "Calibration Corrections Applied to Individual PSPC Events"
CAL/ROS/95-003: "ROSAT PSPC - Status of the PSPC Spatial/Temporal Gain Calibration"
OGIP/94-010: "ROSAT Data Analysis using XSELECT & FTOOLS"
CAL/ROS/93-027: "The Flux Stability of the ROSAT PSPC"
CAL/ROS/93-026: "The Flattening Accuracy of the Exposure Map Software"
CAL/ROS/93-019: "Exposure Maps for the ROSAT PSPC"
CAL/ROS/93-015: "ROSAT PSPC Off-axis Point Spread Function"
CAL/ROS/93-014: "Gail's PSPCRPSF Recipe Book"
CAL/ROS/93-009: "A comparison of ROSAT PSPC Response Matrices"
CAL/ROS/93-007: "Stability of the PSPC Spectral Calibration"
CAL/ROS/92-001a: ROSAT PSPC - The On-axis Point Spread Function: In-flight comparison with the PANTER results, Addendum: High Signal-to-Noise In-Flight Data
CAL/ROS/92-001: ROSAT PSPC - The On-axis Point Spread Function: In-flight comparison with the PANTER results