Explorer 21
| Use attributes for filter ! | |
| Inclination | 33. 7° |
|---|---|
| Launch date | November 27, 1964 |
| Rocket | Delta |
| Manufacturers | NASA Goddard Space Flight Center |
| Launch site | Cape Canaveral Air Force Station Space Launch Complex 17 |
| Date of Reg. | |
| Date of Upd. | |
| ID | 1459746 |
About Explorer 21
Explorer 21, also called IMP-B and Interplanetary Monitoring Platform IMP-B, was an American satellite launched as part of Explorers program. Explorer 21 as launched on 4 October 1964 from Cape Canaveral, Florida, United States, with a Delta rocket.