United States Air ForceAtlas E/OISSpace Launch Complex 3W, Vandenberg SFB, CA, USA
Geosat 1
Launched
March 13, 1985
Image: USAF
Summary
Geosat 1 launched on an United States Air Force Atlas E/OIS from Space Launch Complex 3W, Vandenberg SFB, CA, USA on March 13, 1985. It was United States Air Force's 832nd launch, 2nd this year and humanity's 2,925th orbital launch attempt. It was the 1st Atlas E/OIS flight. The payload was bound for low Earth orbit (LEO). Geosat 1, one of 7 catalogued objects, reached a 767 × 824 km orbit inclined 108.0°. 7 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Atlas E/OIS · United States Air Force
- Booster
- No booster details on record.
- Mission
- Earth Science · Low Earth Orbit (LEO)
- Milestone
- 1st Atlas E/OIS flightUnited States Air Force's 832nd launch2nd this yearhumanity's 2,925th orbital launch attempt21st orbital launch attempt this year
Flight preview
Orbit: as tracked
Geosat 1 · NORAD 15595 · 1985-021 · Space-Track · tracking 1 of 7 objects
Show the numbers for orbit elements
- Object
- GEOSAT
- Object ID
- 1985-021A
- Epoch
- 1985-03-13 04:45:29 UTC
- Mean motion
- 14.30905056 rev/day
- Eccentricity
- 0.0039596
- Inclination
- 108.0493°
- Ascending node
- 248.3651°
- Arg. of perigee
- 298.6961°
- Mean anomaly
- 60.9303°
- Element set
- 999
- Rev at epoch
- 1
- 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
7 catalogued: 1 payload, 6 components; 4 still in orbit
- Geosat 1 · NORAD 15595 · in orbit
Data from J. McDowell, planet4589.org
About this launch
Oceanographic radar altimetry satellite designed to obtain mapping of the Earth's geoid
Pad

Space Launch Complex 3W, Vandenberg SFB, CA, USA
68th launch from Space Launch Complex 3W, 1st this year · 520th from Vandenberg SFB, CA, USA
81 launches from this pad · 919 from Vandenberg SFB, CA, USA
90 days after the previous launch from this pad
Questions
When did Geosat 1 launch?
Geosat 1 launched on March 13, 1985. The time is known to the hour, not the minute.
Where can I watch Geosat 1?
No webcast is on record for this launch.
What rocket launched Geosat 1?
Atlas E/OIS, flown by United States Air Force. Atlas E/OIS spec sheet
Where did Geosat 1 launch from?
Space Launch Complex 3W, Vandenberg SFB, CA, USA.
What orbit did Geosat 1 reach?
Geosat 1, one of 7 catalogued objects, reached a 767 × 824 km orbit inclined 108.0°.
How many satellites did Geosat 1 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
