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Table 3 gives a list of the programs which are now available along with a short description of their purpose. Programs in the first group are used in the data reduction of individual observations, and are discussed in this section. Programs in the second group are discussed in the next section and are used to merge individual observations into larger-area mosaics.
| PSPC | |
| VALID_TIMES | creates an accepted time file |
| RATE | creates a light-curve file for seven bands in 30 s bins |
| AO | evaluates the nominal scattered solar X-ray background |
| RATE_FIT | fits the light curves for the seven bands |
| LTE | evaluates the number of LTE counts using RATE_FIT results |
| CAST_DATA | casts the observed events into images in the seven bands |
| CAST_EXP | casts the vignetting-corrected exposure in the seven bands |
| CAST_PART | evaluates the particle background contribution |
| TILT | evaluates the SSX contribution using RATE_FIT results |
| FIT_AP | evaluates the afterpulse contribution |
| CAST_SSX | casts the modelled SSX and LTE counts |
| FINAL_IMAGE | creates the exposure-corrected, background-subtracted image |
| HRI | |
| CAST_DATA_HRI | casts the observed events into an image |
| CAST_EXP_HRI | casts the vignetting-corrected exposure |
| CAST_PART_HRI | casts the particle background contribution |
| Both | |
| ADAPT | adaptive filter smoothing of image (not for scientific analysis) |
| DETECT | performs a simple source detection and mask creation |
MERGE  | merges event, exposure, or background maps into a mosaic |
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OVERLAP | determines the relative offsets in the zero levels |
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MERGE_OFF | uses OVERLAP output to create an offset count mosaic |
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MERGE_IMAGE | same as FINAL_IMAGE but runs on mosaic images |
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ADAPT_MERGE | same as ADAPT but runs on mosaic images |
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