Key statistics
Satellite IRIDIUM 33 DEB at a glance.
Uptime
10317
Days in orbit
Revolutions
≈ 14.8
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: 1997-051ST
Object number (NORAD): 35809
Object ID (CCSDS): 35809
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 97.585 minutes
Inclination: 86.329 deg
SMA: 7021.292 km
Apoapsis: 649.975 km
Periapsis: 636.339 km
RAAN: 336.2813 deg
Eccentricy: 0.00097103
Argument of periapsis: 251.0565 deg
Mean anomaly: 108.9602 deg
Mean motion: 14.75629145 rev/day
Mean motion (dot): 0.00018102 rev/day2
B* drag term: 0.0026432017 1/REarth
Two-line elements (TLE)
Creation date: Dec. 11, 2025, 3:54 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 10, 2025, 4:35 p.m. UTC
TLE line 0: 0 IRIDIUM 33 DEB
TLE line 1: 1 35809U 97051ST 25344.69162525 .00018102 00000-0 26432-2 0 9992
TLE line 2: 2 35809 86.3290 336.2813 0009710 251.0565 108.9602 14.75629145867777
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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