| ANCHECK | Checks By sign in Antenna files |
| CHREFANT | Name of reference antenna |
| DDT | previous verion of Y2K to test performance and correctness of code |
| DOOSRO | calibrating amplitude and phase, and imaging VLA data |
| DOVLAMP | Produces amp calibration file for phased-VLA VLBI data |
| ELEVLIM | Lower limit on elevation |
| EOPSFILE | Name of text file containing EOP information |
| OBITVERS | Python version to use with BDF2AIPS and OBIT imaging verbs |
| PIPEAIPS | calibrating amplitude and phase, and imaging VLA data |
| SELFCAL | Requests self-calibration of calibration sources |
| SMRATES | Requests smoothing and clipping of rates after FRING in pipeline |
| TECRFILE | Name of file containg TEC data for use in TECOR |
| TECRTYPE | Type of IONEX file to download in VLA and VLBA TECR procedures |
| TYSMOLEV | Clip level to use in running TYSMO on a VLB TY table |
| VLAPROCS | Procedures to simplify the reduction of VLBA data |
| VLARUN | Calibrating amplitude and phase, and imaging VLA data |
| VLBAARCH | Procedure to archive VLBA correlator data |
| VLBAMPHC | applies VLBARUN calibration to additional phase stopping centers |
| VLBARFI | Calibrates VLBA autocorrelations, writes out statistics |
| VLBARUN | applies amplitude and phase calibration procs to VLBA data |
| VLBAUTIL | Procedures to simplify the reduction of VLBA data |
| VLBAWIDE | Calibrates all VLA wide-band autocorrelations with VLBARFI |
| VLBDDT | Verification tests using simulated data |
| WRTPROCS | Procedures to simplify the reduction of VLBA data |
| Y2K | verifies correctness and performance using standard problems |
| Y2KSAVE | verifies correctness and performance using standard problems |