USA 261
X-37B Orbital Test Vehicle aka OTV 4
General
| Designation | 40651 / 15025A |
| Launch date | 20 May 2015 |
| Country of origin | United States |
| Mission | Military: space plane |
| Perigee/Apogee | 309/322 km |
| Inclination | 38° |
| Period | 90.8 min |
| Launch vehicle | Atlas 5 #54 |
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V0.144 - Converted on Sun, 03 Mar 2024 18:29:57 GMT - Updated quarterly
V0.144 - Converted on Sun, 03 Mar 2024 18:29:57 GMT - Updated quarterly