Science
SPAWAR-CAL-OR
Naval Calibration Payload · US Navy SPAWAR
Right now
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SPAWAR-CAL-OR, part of the same US Navy calibration payload family launched on STP-2, giving ground radar operators a precisely known target for accuracy verification.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 304–312 mi (489–502 km)
- Inclination
- 97.4°
- One orbit
- 94.4 minutes15.3 orbits a day
- NORAD ID
- 43778
- Int’l designator
- 2018-099W
- Launched
- 2018
Orbital elements from CelesTrak, as of 22 Sep 2026.