What's New in Version 5.0 for Cycle 10
Major revisions since Version 4.0 may be summarized as follows:
- Comparisons to ACS, STIS, and NICMOS.
- CCD Performance: Material on CTE (charge transfer efficiency) has been updated, including results presented at the January 2000 CTE workshop, and latest CTE time-dependence and corrections. There is also new material on the long-term dark current increase.
- PSF: new material on PSF subtraction and the F1042M filter PSF anomaly. Also aperture corrections as function of field position and focus.
- Updated focus history.
- Astrometry - new geometric corrections.
- Throughput tables: Values have been fully revised using current SYNPHOT results. Sample SNR calculations fully updated. New material on long-term photometric stability.
- Calibration: Material on UV throughput variations, dark current calibration, polarization calibration, flat fielding, and impact of focus variations on photometry has been updated. Cycle 4-9 calibration proposals are described.
- Changes in HST scheduling system.
- Advice on current dither techniques and strategies.
- WFPC2 Clearinghouse.
- Updated references, index, and acronym/abbreviation list.
