| Acronym | Meaning |
 | PCT | Photometric Calibration Test |
| ADS | Aitken Double Star Catalog |
| ISRO | Indian Space Research Organisation |
| NLDP | National Launch Development Program |
| CM | Central Meridian |
| GMRT | Giant Meter-wave Radio Telescope |
| VMF | Voenno-Morskoy Flot |
| CETA | Crew And Equipment Translation Aid |
| QSO | Quasi-Stellar Object |
| ALEXIS | Array Of Low Energy X-ray Imaging Sensors |
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