![[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 70, 72 to 75
Launched
May 17, 1998
Summary
Iridium 70, 72 to 75 launched on an United States Air Force Delta II 7920-10C from Space Launch Complex 2W, Vandenberg SFB, CA, USA on May 17, 1998. It was United States Air Force's 995th launch, 8th this year and humanity's 4,240th orbital launch attempt. It was the 9th Delta II 7920-10C flight and the 3rd this year. The payload was bound for low Earth orbit (LEO). Iridium 70, one of 7 catalogued objects, reached a 634 × 650 km orbit inclined 86.6°. 7 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
- 9th Delta II 7920-10C flight · 3rd this yearUnited States Air Force's 995th launch8th this yearhumanity's 4,240th orbital launch attempt33rd orbital launch attempt this year
Flight preview
Orbit: as tracked
Iridium 70 · NORAD 25342 · 1998-032 · Space-Track · tracking 1 of 7 objects
Show the numbers for orbit elements
- Object
- IRIDIUM 70
- Object ID
- 1998-032A
- Epoch
- 1998-05-17 22:16:08 UTC
- Mean motion
- 14.78297487 rev/day
- Eccentricity
- 0.0011325
- Inclination
- 86.575°
- Ascending node
- 256.5316°
- Arg. of perigee
- 222.955°
- Mean anomaly
- 137.4309°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0.00095478
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
7 catalogued: 5 payloads, 1 rocket stage, 1 component; 1 still in orbit
- Iridium 70 · NORAD 25342 · re-entered October 11, 2018
- Iridium 72 · NORAD 25343 · re-entered May 14, 2018
- Iridium 73 · NORAD 25344 · in orbit
- Iridium 74 · NORAD 25345 · deorbited June 11, 2017
- Iridium 75 · NORAD 25346 · re-entered July 10, 2018
Delta 257 · re-entered May 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
59th launch from Space Launch Complex 2W, 3rd this year · 585th from Vandenberg SFB, CA, USA
99 launches from this pad · 919 from Vandenberg SFB, CA, USA
48 days after the previous launch from this pad
Questions
When did Iridium 70, 72 to 75 launch?
Iridium 70, 72 to 75 launched on May 17, 1998. The time is known to the hour, not the minute.
Where can I watch Iridium 70, 72 to 75?
No webcast is on record for this launch.
What rocket launched Iridium 70, 72 to 75?
Delta II 7920-10C, flown by United States Air Force. Delta II 7920-10C spec sheet
Where did Iridium 70, 72 to 75 launch from?
Space Launch Complex 2W, Vandenberg SFB, CA, USA.
What orbit did Iridium 70, 72 to 75 reach?
Iridium 70, one of 7 catalogued objects, reached a 634 × 650 km orbit inclined 86.6°.
How many satellites did Iridium 70, 72 to 75 launch?
5 payloads from this launch are catalogued, 1 of them still in orbit (Data from J. McDowell, planet4589.org).
Which program is Iridium 70, 72 to 75 part of?
Iridium Constellation. About Iridium Constellation