Mission
Earth Science · Elliptical
Explorer 39 was an inflatable sphere, 3.6 m in diameter. It was orbited to make atmospheric density determinations.
What it put in orbit
| Object | Type | Orbit | Globe |
|---|---|---|---|
| EXPLORER 39 (ADI-3) 1968-066A | Payload | re-entered 1981-06-22 | |
| EXPLORER 40 (INJUN 5) 1968-066B | Payload | 679 × 2475 km · 80.7° | Globe |
| SCOUT B R/B 1968-066C | Rocket body | 680 × 2451 km · 80.7° | Globe |
| SCOUT B DEB 1968-066D | Debris | re-entered 2002-01-31 | |
| SCOUT B DEB 1968-066E | Debris | re-entered 2000-02-09 | |
| SCOUT B DEB 1968-066F | Debris | re-entered 2011-11-24 | |
| SCOUT B DEB 1968-066G | Debris | re-entered 2002-09-17 | |
| SCOUT B DEB 1968-066H | Debris | 592 × 1058 km · 80.7° | Globe |
Show all 13 objects
COSPAR ID 1968-066 (data from GCAT, J. McDowell, CC BY 4.0). Orbits from the CelesTrak satellite catalogue (perigee × apogee, inclination).