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List of Figures

• Schematic view of the ROSAT spacecraft
• The fields of view of the ROSAT PSPC, HRI and star trackers.
• Aitoff projection of all-sky-survey exposure times
• Data stream for a target demonstrating the Earth occultations, etc.
• Schematic cross-sectional view of the ROSAT telescope tube
• Position deviations for 61 sources observed with PSPC-B
• Position deviations for 28 observations of 3C279
• Position deviations for 6 sources observed with the HRI
• The effective area of the ROSAT XMA
• Widths of the PSPC and mirror components to the PSF
• ROSAT spacecraft coordinate frame
• Schematic cross-sectional view of a ROSAT PSPC
• Cross sections of the PSPC counter gas
• Mean free path of photons in the PSPC counter gas
• Rate-gain and after-pulse effects in the Crab PSPC spectrum
• The energy dependence of the PSPC quantum efficiency
• The PSPC window support schematic
• Energy dependence of the PSPC window transmissions (ground calibration)
• Modelled energy dependence of the PSPC-B window transmissions
• The PSPC boron filter trans versus energy
• Spatial gain correction of the PSPC as function of penetration depth and energy
• Cumulative PSPC spectrum
• ADC nonlinearities
• Gain saturation effect of the PSPC
• Temporal and gain saturation corrections of the PSPC
• Residuals of a fit to the PSPC spectrum from Mkn 421
• Scale factor of the ``Golden Disk'' as a function of penetration depth and energy
• ROSAT spacecraft clock correlation for different periods
• On-axis point spread function of the HRI
• Comparison of the on-axis PSF (HZ 43, LMC X-1, and AR Lac)
• On-axis encircled energy function (HRI)
• Comparison of the HRI on-axis encircled energy function (HZ 43, LMC X-1, and AR Lac)
• Variation in the on-axis HRI PSF due to residuals errors in the aspect solution
• Asymmetry in on-axis point-source images (HRI)
• Images of HZ 43 at nine different off-axis angles (HRI)
• Images of LMC X-1 at nine different off-axis angle (HRI)
• Contour images of HZ 43 at nine different off-axis angles (HRI)
• The 50% power radius vs. off-axis angle (HRI)
• Effective area of the XRT/HRI vs. photon energy
• Vignetting function of the XRT/HRI
• Quantum efficiency map of the HRI
• Light curve of the background (HRI)
• Comparison of PHA distribution of the background and AR Lac
• PHA distribution of ground-based data at 7 photon energies
• Spatial variation of the HRI gain
• Mean pulse height channel: measured vs. predicted from the gain map
• Pulse-height distributions of N132D
• Pulse-height distributions of Vega (UV source)
• The UV count rate during the high voltage change, 1994 June.
• The PHA distribution of a UV lamp before and after the HV change.
• Poisson statistics and the detection of point sources
• Schematic diagram of the WFC
• Telemetered count rates in low speed and high speed telemetry modes
• WFC effective area (at the time of launch)
• Long-term efficiency history of the WFC
• The spatial variation in WFC sensitivity
• In-orbit WFC encircled energy function on-axis
• In-orbit WFC encircled energy function for
• Radial response profile of HZ 43 on-axis
• Diagram of the SASS interfaces
• The bin of the Al K line (BAL) as a function of time
• Correction tables for ADC non-linearities
• Channel difference caused by gain saturation correction
• Temporal gain correction factor
• Cumulative effect of ADC corrections vs. measured PHA channel
• Electronic position correction for PSPC-C.
• Electronic position correction for PSPC-B.
• Spatial gain correction
• Effect of the spatial gain correction in low-gain mode.
• Spatial gain correction effect of PSPC-B.
• Spatial gain correction: effect of interchange of x and y axis
• Window correction tables for PSPC-B
• Window corrections
• PSPC off-axis distance shift as function of off-axis distance
• XRT effective areas combined with PSPC properties
• Vignetting Correction
• Detector Response Matrix
• Modified Instrument Map
• Transmission of boron filter
• Template spectra
• Raymond-Smith spectra
• Binomial Probability
• Chi Square Probability