 Explorer 52 (Hawkeye-1) satellite | |
| Names | Hawkeye-1 Injun-6 IE-D Ionospheric Explorer-D Neutral Point Explorer |
|---|---|
| Mission type | Ionospheric research |
| Operator | NASA / Langley Research Center |
| COSPAR ID | 1974-040A |
| SATCAT no. | 07325 |
| Mission duration | 3 years, 10 months, 24 days |
| Spacecraft properties | |
| Spacecraft | Explorer LII |
| Spacecraft type | Ionospheric Explorer |
| Bus | Injun |
| Manufacturer | University of Iowa |
| Launch mass | 22.7 kg (50 lb) |
| Power | 36 watts |
| Start of mission | |
| Launch date | 3 June 1974, 23:09:11 UTC |
| Rocket | Scout E1 (S-191C) [1] |
| Launch site | Vandenberg, SLC-5 |
| Contractor | Vought |
| Entered service | 3 June 1974 |
| End of mission | |
| Decay date | 28 April 1978 |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Polar orbit |
| Perigee altitude | 469 km (291 mi) |
| Apogee altitude | 125,570 km (78,030 mi) |
| Inclination | 89.80° |
| Period | 3032.40 minutes |
| Instruments | |
| Extremely low frequency (ELF) / Very low frequency (VLF) Receivers Low-Energy Proton and Electron Differential Energy Analyzer (LEPEDEA) Triaxial Fluxgate Magnetometer | |
Explorer 52, also known as Hawkeye-1, Injun-F, Neutral Point Explorer, IE-D, Ionospheric Explorer-D, was a NASA satellite launched on June 3, 1974, from Vandenberg Air Force Base on a Scout E-1 launch vehicle.[2]
- ^ "Scout-E1". Gunter's Space Page. 12 December 2017. Retrieved 17 November 2021.
- ^ "Display: Explorer 52 (Hawkeye-1) 1974-040A". NASA. 28 October 2021. Retrieved 17 November 2021.
This article incorporates text from this source, which is in the public domain.
