| Acronym | Meaning |
 | IC | Index Catalog |
 | EUTELSAT | European Telecommunications Satellite Organization |
 | SMEX | Small EXplorers |
 | RKA | Rossiskoye Kosmicheskoye Agentsvo |
 | ATAL | Alternate Transoceanic Abort Landing |
 | MOPITT | Measurements Of Pollution In The Troposphere |
 | HR | Hertzsprung-Russell |
 | ERS | Earth Resources Satellite |
 | ATDRS | Advanced Tracking And Data Relay Satellite |
 | USMP | United States Microgravity Payload |