Tracking 31027 objects as of 19-Jul-2025
HD Live streaming from Space Station
objects crossing your sky now

INFORMATOR 1

Track INFORMATOR 1 now!
10-day predictions
INFORMATOR 1 is classified as:


NORAD ID: 21087
Int'l Code: 1991-006A
Perigee: 960.2 km
Apogee: 1,014.0 km
Inclination: 82.9 °
Period: 104.7 minutes
Semi major axis: 7358 km
RCS: 1.8857 m2 (large)
Launch date: January 29, 1991
Source: Commonwealth of Independent States (former USSR) (CIS)
Launch site: PLESETSK MISSILE AND SPACE COMPLEX (PKMTR)

Uplink (MHz):
Downlink (MHz): 145.800
Beacon (MHz): 145.822
Mode: 1200bps BPSK CW
Call sign:
Status: Inactive


Uplink (MHz):
Downlink (MHz): 145.822
Beacon (MHz): 145.822/145.948
Mode: CW
Call sign:
Status: Inactive

Your satellite tracking list
IRIDIUM 106
Track 1 satellite(s)




NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 21087U 91006A   25199.52459591  .00000067  00000-0  52683-4 0  9991
2 21087  82.9435  12.5056 0036555  87.7254 326.6446 13.75485800729670
Source of the keplerian elements: AFSPC