Key statistics
Satellite IRIDIUM 33 DEB at a glance.
Uptime
10262
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
LEO
Low Earth Orbit
Inclination
86.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for IRIDIUM 33 DEB.
Object identification
Identified? True
Debris? True
Object name: IRIDIUM 33 DEB
International designator: 1997-051AAJ
Object number (NORAD): 39777
Object ID (CCSDS): 39777
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 98.977 minutes
Inclination: 85.9643 deg
SMA: 7087.866 km
Apoapsis: 755.194 km
Periapsis: 664.269 km
RAAN: 202.1826 deg
Eccentricy: 0.00641416
Argument of periapsis: 18.546 deg
Mean anomaly: 341.8063 deg
Mean motion: 14.54887771 rev/day
Mean motion (dot): 0.0001494 rev/day2
B* drag term: 0.0033750673 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 17, 2025, 5:14 p.m. UTC
TLE line 0: 0 IRIDIUM 33 DEB
TLE line 1: 1 39777U 97051AAJ 25290.71833656 .00014940 00000-0 33751-2 0 9991
TLE line 2: 2 39777 85.9643 202.1826 0064142 18.5460 341.8063 14.54887771593703
Live tracking on map
Real-time ground track for satellite IRIDIUM 33 DEB.
In-orbit conjunctions
A list of the most updated potential collisions computed for object IRIDIUM 33 DEB.
Associated space launch
Iridium provides global mobile telecommunications services using a constellation of 66 low earth orbit satellites in a 86.4° inclined orbit. Although 77 satellites were originally envisioned for the system and spawned the name based on the 77th element in the periodic table, the system has been scaled back. Motorola's Satellite Communications Group designed and manufactured the Iridium satellites with Lockheed Martin providing the LM-700A spacecraft buses.
IRIDIUM 33 DEB was lifted into orbit during the mission ‘Proton-K/17S40 | Iridium 27 to 33’, on board a Proton-K/17S40 space rocket.
The launch took place on Sept. 14, 1997, 1:36 a.m. from 81/23 (81L).
For more information about the launch, click the button.
Proton-K/17S40 | Iridium 27 to 33
Agency: N/A
Status: Launch Successful
Launch date: Sept. 14, 1997, 1:36 a.m. UTC
Rocket: Proton-K/17S40
Launch pad: 81/23 (81L)
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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