Key statistics
Satellite IRIDIUM 33 DEB at a glance.
Uptime
10318
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
LEO
Low Earth Orbit
Inclination
86.3
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: 1997-051T
Object number (NORAD): 33850
Object ID (CCSDS): 33850
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 99.851 minutes
Inclination: 86.3417 deg
SMA: 7129.546 km
Apoapsis: 760.201 km
Periapsis: 742.621 km
RAAN: 29.798 deg
Eccentricy: 0.00123288
Argument of periapsis: 158.2918 deg
Mean anomaly: 321.2422 deg
Mean motion: 14.42148428 rev/day
Mean motion (dot): 0.00001387 rev/day2
B* drag term: 0.00041544855 1/REarth
Two-line elements (TLE)
Creation date: Dec. 14, 2025, 3:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 13, 2025, 3:03 p.m. UTC
TLE line 0: 0 IRIDIUM 33 DEB
TLE line 1: 1 33850U 97051T 25347.62756935 .00001387 00000-0 41545-3 0 9996
TLE line 2: 2 33850 86.3417 29.7980 0012329 158.2918 321.2422 14.42148428881658
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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