| nicercal | - Apply standard calibration to NICER observation |
| niprefilter2 | - create augmented NICER-specific filter file |
| nivignette | - Calculate NICER vignette profile for target position |
| niprefilter | - create NICER-specific filter file |
| nimpumerge | - Merge NICER event data from multiple MPUs (or observations) |
| nifpmsel | - screen NICER event data by FPM (detector) |
| nicertimeconv | - Basic time conversion for NICER time values |
| nicertimecal | - apply clock calibration to NICER event file |
| nimpucal | - Apply standard NICER calibration to MPU data |
| nitargdet | - Calculate target position in NICER instrument coordinates |
| niextract | - events - Fast event filtering, similar to extractor |
| nimkfmerge | - merge NICER filter files (combine .mkf) |
| nicermergeclean | - Merge NICER MPU data and apply standard screening |
| nicerrmf | - calculate NICER response (RMF or RSP) |
| nicaldbver | - Report NICER Calibration Database (CALDB) version |
| nicerl2 | - Apply NICER Level2 standard calibration and filtering |
| niexposum | - display NICER per-detector exposure |
| nicerpi | - apply gain calibration to NICER event file (calculate Energy/PI) |
| nimaketime | - Create standard NICER screening GTI |
| nicerversion | - Report NICER software version |
| nicerarf | - calculate NICER effective area (ARF) |
| nicerclean | - Apply standard NICER screening |