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United States Air ForceDelta II 7920-10Space Launch Complex 2W, Vandenberg SFB, CA, USA
ARGOS
Launched
February 23, 1999
Summary
ARGOS launched on an United States Air Force Delta II 7920-10 from Space Launch Complex 2W, Vandenberg SFB, CA, USA on February 23, 1999. It was United States Air Force's 1,006th launch, 3rd this year and humanity's 4,297th orbital launch attempt. It was the 4th Delta II 7920-10 flight and the 1st this year. The payload was bound for low Earth orbit (LEO). ARGOS, one of 11 catalogued objects, reached a 835 × 854 km orbit inclined 98.7°. 11 objects from this launch are catalogued, 3 of them payloads.
- Watch
- No webcast on record.
- Vehicle
- Delta II 7920-10 · United States Air Force
- Booster
- No booster details on record.
- Mission
- Planetary Science · Low Earth Orbit (LEO)
- Milestone
- 4th Delta II 7920-10 flight · 1st this yearUnited States Air Force's 1,006th launch3rd this yearhumanity's 4,297th orbital launch attempt8th orbital launch attempt this year
Flight preview
Orbit: as tracked
ARGOS · NORAD 25634 · 1999-008 · Space-Track · tracking 1 of 11 objects
Show the numbers for orbit elements
- Object
- ARGOS
- Object ID
- 1999-008A
- Epoch
- 1999-02-23 11:31:24 UTC
- Mean motion
- 14.16429973 rev/day
- Eccentricity
- 0.0013254
- Inclination
- 98.7251°
- Ascending node
- 4.7559°
- Arg. of perigee
- 250.2921°
- Mean anomaly
- 109.6824°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0
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
11 catalogued: 3 payloads, 1 rocket stage, 7 debris; 4 still in orbit
- ARGOS · NORAD 25634 · in orbit
- Orsted · NORAD 25635 · in orbit
- Sunsat-OSCAR-35 · NORAD 25636 · in orbit
Delta 267 · in orbit
Data from J. McDowell, planet4589.org
About this launch
ARGOS (Advanced Research & Global Observation Satellite) is a testbed and demonstration program for advanced remote sensing technologies for the US Air Force's Space Test Program (STP). ARGOS's primary objective is to fly and operate advanced payloads that include two technology demonstrations and seven experiment payloads for global and celestial observation. ARGOS also has a goal of three years of on orbit operations to demonstrate and collect science data for the Earth's global environment and top priority military space programs.
Pad
Space Launch Complex 2W, Vandenberg SFB, CA, USA
62nd launch from Space Launch Complex 2W, 1st this year · 589th from Vandenberg SFB, CA, USA
99 launches from this pad · 919 from Vandenberg SFB, CA, USA
108 days after the previous launch from this pad
Questions
When did ARGOS launch?
ARGOS launched on February 23, 1999. The time is known to the hour, not the minute.
Where can I watch ARGOS?
No webcast is on record for this launch.
What rocket launched ARGOS?
Delta II 7920-10, flown by United States Air Force. Delta II 7920-10 spec sheet
Where did ARGOS launch from?
Space Launch Complex 2W, Vandenberg SFB, CA, USA.
What orbit did ARGOS reach?
ARGOS, one of 11 catalogued objects, reached a 835 × 854 km orbit inclined 98.7°.
How many satellites did ARGOS launch?
3 payloads from this launch are catalogued, 3 of them still in orbit (Data from J. McDowell, planet4589.org).