| Acronym | Meaning |
| MITI | Ministry Of International Trade And Industry |
| PPM | Positions And Proper Motions (catalog) |
| SL-J | SpaceLab Japan |
| RFM | Reconfigurable Furnace Module |
| ELDO | European Launcher Development Organisation |
| UIT | Ultraviolet Imaging Telescope |
| HLV | Heavy Lift Vehicle |
| IAUC | IAU Circular |
| DOMSAT | Domestic Satellite |
| AGE | Auxiliary Ground Equipment |