RocketThor Delta C
SpaceportCape Canaveral & Kennedypad LC17B
OutcomeSuccess
Launch agencyGSFCUnited States
Flight
- Date and time (UTC)
- May 29, 1965, 12:00
- Launch designation
- 1965-042
- Mission
- IMP C
- Flight name
- Explorer 28
- Vehicle flight ID
- 441/D031
- Year
- Launches in 1965
Orbit and payload
- Initial apogee
- 150,000 km
- Payload mass to orbit
- 0.059 t
- Payloads
- 1
- GCAT launch code
- OS
Payloads
| Payload | Designation | Owner | Mission type | Mass | Fate |
|---|---|---|---|---|---|
| IMP 3 | 1965-042ANORAD 1388 | NASA Goddard Space Flight Center | Space science | 59 kg | Left Earth orbit for deep space · May 30, 1965 |
Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.