 | This articleneeds additional citations forverification. Please helpimprove this article byadding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Hitchhiker 1" – news ·newspapers ·books ·scholar ·JSTOR(June 2018) (Learn how and when to remove this message) |
| Mission type | Technology |
|---|---|
| Operator | U.S. Air Force |
| COSPAR ID | 1963-025B |
| SATCATno. | 614 |
| Spacecraft properties | |
| Bus | P-11 |
| Manufacturer | Lockheed Martin / MIT |
| Launch mass | 80 kilograms (180 lb) |
| Start of mission | |
| Launch date | June 27, 1963, 19:55 (1963-06-27UTC19:55Z) UTC[1] |
| Rocket | Thor-SLV2A Agena-D |
| Launch site | Vandenberg75-1-2 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Medium Earth |
| Eccentricity | 0.16898 |
| Perigee altitude | 330 kilometres (210 mi) |
| Apogee altitude | 3,060 kilometres (1,900 mi) |
| Inclination | 82.1° |
| Period | 120.3 minutes |
| Epoch | June 27, 1963 (1963-06-27) |
.gif)
Hitchhiker 1 (orHitchhiker P-11 4201) was asatellite launched byU.S. Air Force on June 27, 1963. It was launched with the aim of studying and measuringcosmic radiation. The satellite was the first successful satellite of theP-11 program, following the failure of the first Hitchhiker satellite in March 1963.
 | Thisspacecraft orsatellite related article is astub. You can help Wikipedia byexpanding it. |
