RocketThor Delta E1
SpaceportVandenbergpad SLC2W
OutcomePartial · 0.75stage 2 guidance or control failure; later stages kept firing on the wrong trajectory
Launch agencyGSFCUnited States
Flight
- Date and time (UTC)
- June 21, 1969, 08:47
- Launch designation
- 1969-053
- Mission
- IMP G
- Flight name
- Explorer 41
- Vehicle flight ID
- 482/D069
- Year
- Launches in 1969
Orbit and payload
- Initial apogee
- 150,000 km
- Payload mass to orbit
- 0.079 t
- Payloads
- 1
- GCAT launch code
- OS75 · S2G*
Payloads
| Payload | Designation | Owner | Mission type | Mass | Fate |
|---|---|---|---|---|---|
| IMP 5 | 1969-053ANORAD 3990 | NASA Goddard Space Flight Center | Space science | 79 kg | Left Earth orbit for deep space · Jun 22, 1969 |
Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.