Tracking 30995 objects as of 7-Jul-2025
HD Live streaming from Space Station
objects crossing your sky now

OPS 4311 (DMSP 5B F1)

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


NORAD ID: 5557
Int'l Code: 1971-087A
Perigee: 768.4 km
Apogee: 840.8 km
Inclination: 99.0 °
Period: 100.8 minutes
Semi major axis: 7175 km
RCS: 1.3993 m2 (large)
Launch date: October 14, 1971
Source: United States (US)
Launch site: AIR FORCE WESTERN TEST RANGE (AFWTR)
Your satellite tracking list
DMC 3-FM3
Track 1 satellite(s)




NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1  5557U 71087A   25187.24438671  .00000149  00000-0  77567-4 0  9993
2  5557  99.0264 273.1504 0050478 188.8779 171.1514 14.28295365791325
Source of the keplerian elements: AFSPC