OPS 4311 (DMSP 5B F1)

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10-day predictions
OPS 4311 (DMSP 5B F1) is classified as:

• Space & Earth Science

NORAD ID: 5557
Int'l Code: 1971-087A
Perigee: 772.3 km
Apogee: 844.7 km
Inclination: 99.1 °
Period: 100.9 minutes
Semi major axis: 7179 km
RCS: 1.3993 m² (large)
Launch date: October 14, 1971
Source: United States (US)
Launch site: AIR FORCE WESTERN TEST RANGE (AFWTR)

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1  5557U 71087A   19111.48854448  .00000005  00000-0  21359-4 0  9992
2  5557  99.0876  68.8697 0050437 242.6768 116.9271 14.27121836467796

Source of the keplerian elements: AFSPC