Key statistics
Satellite IRIDIUM 33 DEB at a glance.
Uptime
10183
Days in orbit
Revolutions
≈ 16.0
Per day
Orbit
LEO
Low Earth Orbit
Inclination
86.2
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: 1997-051AT
Object number (NORAD): 33874
Object ID (CCSDS): 33874
Country: UNITED STATES OF AMERICA (US)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Decay date: Aug. 1, 2025
Period: 90.258 minutes
Inclination: 86.16 deg
SMA: 6665.249 km
Apoapsis: 298.628 km
Periapsis: 275.599 km
RAAN: 60.1308 deg
Eccentricy: 0.0017276
Argument of periapsis: 266.4592 deg
Mean anomaly: 93.4716 deg
Mean motion: 15.95431773 rev/day
Mean motion (dot): 0.05693054 rev/day2
B* drag term: 0.019146 1/REarth
Two-line elements (TLE)
Creation date: July 31, 2025, 6:11 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 31, 2025, 12:35 a.m. UTC
TLE line 0: 0 IRIDIUM 33 DEB
TLE line 1: 1 33874U 97051AT 25212.02498284 .05693054 58204-1 19146-1 0 9990
TLE line 2: 2 33874 86.1600 60.1308 0017276 266.4592 93.4716 15.95431773860596
Live tracking on map
Satellite IRIDIUM 33 DEB has decayed and is no longer in orbit. No tracking available.
In-orbit conjunctions
Satellite IRIDIUM 33 DEB has decayed and is no longer in orbit. No conjunctions available.
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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