Launch data:
| Designation | 00031 / 1960 Gamma 2 / 60003A |
| Launch date | 13 Apr 1960 - 12:02:36 UT |
| Launch site | CC, LC17B |
| Launch vehicle |
Thor-DM21 Ablestar (#257) |
| Mission | Navigation |
| Earth orbit: |
| Perigee / Apogee | 373 / 748 km |
| Inclination | 51,28° |
| Period | 95,81 min |
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