COSMOS 1275

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COSMOS 1275 is classified as:

Parus

NORAD ID: 12504

Int'l Code: 1981-053A

Perigee: 961.7 km

Apogee: 1,020.8 km

Inclination: 83.0 °

Period: 104.8 minutes

Semi major axis: 7362 km

RCS: 3.2441 m² (large)

Launch date: June 4, 1981
Source: Commonwealth of Independent States (former USSR) (CIS)
Launch site: PLESETSK MISSILE AND SPACE COMPLEX (PKMTR)

Cosmos 1275 was part of a 6-satellite Soviet military navigation system distributed in orbital planes spaced 30 degrees apart, and launched from the Plesetsk cosmodrome aboard a Cosmos rocket. Navigation information was derived from Doppler-shifted VHF transmissions (approximately 150 and 400 MHz) of the satellite position and orbital data. By acquiring fixes from several satellite, a user's location could be calculated with an accuracy of 100 m. The time needed to ascertain a position was dependent upon the user's latitude and the number of operational spacecraft in orbit. Normally, accurate location determination could be made within 1-2 hours.

1 12504U 81053A   19201.41112728  .00000030  00000-0  15494-4 0  9998
2 12504  82.9621 328.4534 0040139  17.0998 343.1500 13.74320828912794

Source of the keplerian elements: AFSPC