Spacecraft information: NNSS 20

Launch Details
Launched 29 October 1973
Flight ended –
Status Unknown
Category Navy Navigation Satellite System (NNSS)
Launch site Air Force Western Test Range, California, USA
Owner United States
NORAD ID 6909
COSPAR ID 1973-081A
Alternative names TRANSIT 20
Observing

Current orbital elements

Inclination 89.862°
Eccentricity 0.01527
RA ascending node 16.841 hr
Argument perigee 314.057°
Mean anomaly 44.810°
Orbital period 104.995 min
Epoch of osculation 23 May 2026, 08:41

See historical orbital elements »

Derived Quantities

Min Altitude 888.8 km
Mean Altitude 1001.3 km
Peak Altitude 1113.9 km

Launched alongside

SCOUT A-1 R/B SCOUT A-1 DEB SCOUT A-1 DEB TRANSIT 20 DEB

Orbital History

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South El Monte

Latitude:
Longitude:
Timezone:

34.05°N
118.05°W
PDT

Color scheme


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Last updated: 23 May 2026, 18:22 UTC
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