![[AUTO] Delta II - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fdelta2520ii_image_20190222030612.jpeg&w=1600)
United States Air ForceDelta II 7920-10CSpace Launch Complex 2W, Vandenberg SFB, CA, USA
Iridium 77, 79 to 82
Launched
September 8, 1998
Summary
Iridium 77, 79 to 82 launched on an United States Air Force Delta II 7920-10C from Space Launch Complex 2W, Vandenberg SFB, CA, USA on September 8, 1998. It was United States Air Force's 999th launch, 12th this year and humanity's 4,262nd orbital launch attempt. It was the 10th Delta II 7920-10C flight and the 4th this year. The payload was bound for low Earth orbit (LEO). Iridium 82, one of 6 catalogued objects, reached a 539 × 546 km orbit inclined 86.0°. 6 objects from this launch are catalogued, 5 of them payloads.
- Watch
- No webcast on record.
- Vehicle
- Delta II 7920-10C · United States Air ForceIridium Constellation
- Booster
- No booster details on record.
- Mission
- Communications · Low Earth Orbit (LEO)
- Milestone
- 10th Delta II 7920-10C flight · 4th this yearUnited States Air Force's 999th launch12th this yearhumanity's 4,262nd orbital launch attempt55th orbital launch attempt this year
Flight preview
Orbit: as tracked
Iridium 82 · NORAD 25467 · 1998-051 · Space-Track · tracking 1 of 6 objects
Show the numbers for orbit elements
- Object
- IRIDIUM 82
- Object ID
- 1998-051A
- Epoch
- 1998-09-08 23:47:09 UTC
- Mean motion
- 15.10262423 rev/day
- Eccentricity
- 0.0005622
- Inclination
- 86.0095°
- Ascending node
- 7.9642°
- Arg. of perigee
- 48.6543°
- Mean anomaly
- 311.3341°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0.0001
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
6 catalogued: 5 payloads, 1 rocket stage; none still in orbit
- Iridium 82 · NORAD 25467 · re-entered August 8, 2026
- Iridium 81 · NORAD 25468 · re-entered July 17, 2018
- Iridium 80 · NORAD 25469 · re-entered August 12, 2018
- Iridium 79 · NORAD 25470 · deorbited November 29, 2000
- Iridium 77 · NORAD 25471 · re-entered September 22, 2017
Delta 260 · re-entered March 15, 1999
Data from J. McDowell, planet4589.org
About this 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.
Pad
Space Launch Complex 2W, Vandenberg SFB, CA, USA
60th launch from Space Launch Complex 2W, 4th this year · 586th from Vandenberg SFB, CA, USA
99 launches from this pad · 919 from Vandenberg SFB, CA, USA
113 days after the previous launch from this pad
Questions
When did Iridium 77, 79 to 82 launch?
Iridium 77, 79 to 82 launched on September 8, 1998. The time is known to the hour, not the minute.
Where can I watch Iridium 77, 79 to 82?
No webcast is on record for this launch.
What rocket launched Iridium 77, 79 to 82?
Delta II 7920-10C, flown by United States Air Force. Delta II 7920-10C spec sheet
Where did Iridium 77, 79 to 82 launch from?
Space Launch Complex 2W, Vandenberg SFB, CA, USA.
What orbit did Iridium 77, 79 to 82 reach?
Iridium 82, one of 6 catalogued objects, reached a 539 × 546 km orbit inclined 86.0°.
How many satellites did Iridium 77, 79 to 82 launch?
5 payloads from this launch are catalogued, none of them still in orbit (Data from J. McDowell, planet4589.org).
Which program is Iridium 77, 79 to 82 part of?
Iridium Constellation. About Iridium Constellation