Norad ID: 1520
| Spacetrack Directory Name | CALSPHERE 4(A) |
| Follow CALSPHERE 4(A) | CALSPHERE 4(A) Tracker |
| Pass predictions CALSPHERE 4(A) | Pass predictions CALSPHERE 4(A) |
| Orbit launches |
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| Days in orbit | 22180 |
| Country/organisation of origin | USA (US) |
| Starting point | AFWTR (Vandenberg Air Force Base, USA) |
| Perigee | 1074 km |
| Apogee | 1176 km |
| Orbit slope (inclination) | 89.9° |
| Laps per day | 13 |
| Height CALSPHERE 4(A) | 1135.72 km |
CALSPHERE 4(A), 1520 is a payload satellite owned by NRL (US) in LEO that was launched on Fri, 13 Aug 1965 UTC via a THOR ABLESTAR launch vehicle from the Air Force Western Test Range (AFWTR). Payloads include a variety of satellites, spacecraft, and rockets equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
satellite CALSPHERE 4(A) Date of exalting 13.08.1965y. Average height of ISS CALSPHERE 4(A) hundred 1135.72 km. Average velocity CALSPHERE 4(A) is 26231.44 km/h. Inclination CALSPHERE 4(A) satellite 89.91°.