United States Air ForceScout G-1Space Launch Complex 5, Vandenberg SFB, CA, USA
REX
Launched
June 29, 1991
Summary
REX launched on an United States Air Force Scout G-1 from Space Launch Complex 5, Vandenberg SFB, CA, USA on June 29, 1991. It was United States Air Force's 899th launch, 7th this year and humanity's 3,644th orbital launch attempt. It was the 13th Scout G-1 flight and the 1st this year. The payload was bound for Polar Orbit (PO). REX, one of 6 catalogued objects, reached a 781 × 879 km orbit inclined 89.6°. 6 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Scout G-1 · United States Air Force
- Booster
- No booster details on record.
- Mission
- Earth Science · Polar Orbit (PO)
- Milestone
- 13th Scout G-1 flight · 1st this yearUnited States Air Force's 899th launch7th this yearhumanity's 3,644th orbital launch attempt47th orbital launch attempt this year
Flight preview
Orbit: as tracked
REX · NORAD 21527 · 1991-045 · Space-Track · tracking 1 of 6 objects
Show the numbers for orbit elements
- Object
- REX
- Object ID
- 1991-045A
- Epoch
- 1991-06-29 23:32:50 UTC
- Mean motion
- 14.20823654 rev/day
- Eccentricity
- 0.0068287
- Inclination
- 89.5719°
- Ascending node
- 188.1386°
- Arg. of perigee
- 248.3043°
- Mean anomaly
- 111.086°
- Element set
- 999
- Rev at epoch
- 5
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: PO. Ascent drawn from padside's representative profile.
Catalogued objects
6 catalogued: 1 payload, 1 rocket stage, 4 components; 6 still in orbit
- REX · NORAD 21527 · in orbit
Scout S216C Stage 4 · in orbit
Data from J. McDowell, planet4589.org
About this launch
REX (Radiation Experiment) or ISES (Integrated Space Experiment System) was an Air Force Rome Laboratory ionospheric research satellite which tested the effects of the atmosphere on radio transmissions, and employed GPS for on-board navigation and attitude control.
Pad
Space Launch Complex 5, Vandenberg SFB, CA, USA
65th launch from Space Launch Complex 5, 1st this year · 547th from Vandenberg SFB, CA, USA
69 launches from this pad · 919 from Vandenberg SFB, CA, USA
415 days after the previous launch from this pad
Questions
When did REX launch?
REX launched on June 29, 1991. The time is known to the hour, not the minute.
Where can I watch REX?
No webcast is on record for this launch.
What rocket launched REX?
Scout G-1, flown by United States Air Force. Scout G-1 spec sheet
Where did REX launch from?
Space Launch Complex 5, Vandenberg SFB, CA, USA.
What orbit did REX reach?
REX, one of 6 catalogued objects, reached a 781 × 879 km orbit inclined 89.6°.
How many satellites did REX launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).