COSMOS 990

Launch Details
Launched 16 February 1978
Flight ended –
Status Unknown
Launch site Plesetsk Missile and Space Complex, Russia
Owner Commonwealth of Independent States (former USSR)
NORAD ID 10676
COSPAR ID 1978-019A
Observing

Current orbital elements

Inclination 74.038°
Eccentricity 0.00170
RA ascending node 19.797 hr
Argument perigee 333.429°
Mean anomaly 26.599°
Orbital period 100.201 min
Epoch of osculation 15 Sep 2025, 02:10

See historical orbital elements »

Derived Quantities

Min Altitude 763.0 km
Mean Altitude 775.2 km
Peak Altitude 787.3 km

Orbital History

Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.

Launched alongside

SL-8 R/B SL-8 DEB SL-8 DEB SL-8 DEB

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South El Monte

Latitude:
Longitude:
Timezone:

34.05°N
118.05°W
PDT

Color scheme


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