ArianespaceAriane 40Ariane Launch Area 2, Guiana Space Centre, French Guiana
ERS-1
Launched
July 17, 1991
Image: Arianespace
Summary
ERS-1 launched on an Arianespace Ariane 40 from Ariane Launch Area 2, Guiana Space Centre, French Guiana on July 17, 1991. It was Arianespace's 43rd launch, 4th this year and humanity's 3,649th orbital launch attempt. It was the 2nd Ariane 40 flight and the 1st this year. The payload was bound for Polar Orbit (PO). ERS-1, one of 19 catalogued objects, reached a 782 × 785 km orbit inclined 98.6°. 19 objects from this launch are catalogued, 5 of them payloads.
- Watch
- No webcast on record.
- Vehicle
- Ariane 40 · Arianespace
- Booster
- No booster details on record.
- Mission
- Earth Science · Polar Orbit (PO)
- Milestone
- 2nd Ariane 40 flight · 1st this yearArianespace's 43rd launch4th this yearhumanity's 3,649th orbital launch attempt52nd orbital launch attempt this year
Flight preview
Orbit: as tracked
ERS-1 · NORAD 21574 · 1991-050 · Space-Track · tracking 1 of 19 objects
Show the numbers for orbit elements
- Object
- ERS 1
- Object ID
- 1991-050A
- Epoch
- 1991-07-17 01:53:15 UTC
- Mean motion
- 14.34543485 rev/day
- Eccentricity
- 0.0002336
- Inclination
- 98.5517°
- Ascending node
- 271.9207°
- Arg. of perigee
- 137.979°
- Mean anomaly
- 222.1574°
- 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: PO. Ascent drawn from padside's representative profile.
Catalogued objects
19 catalogued: 5 payloads, 1 rocket stage, 13 debris; 9 still in orbit
- ERS-1 · NORAD 21574 · in orbit
- UoSAT-OSCAR-22 · NORAD 21575 · in orbit
- Orbcomm-X · NORAD 21576 · in orbit
- TUBSAT-1 · NORAD 21577 · in orbit
- SARA · NORAD 21578 · in orbit
Ariane H10 V44 · in orbit
Data from J. McDowell, planet4589.org
About this launch
ERS (European Remote Sensing Satellite) are a family of multi-disciplinary Earth Observation Satellites.
Pad
Ariane Launch Area 2, Guiana Space Centre, French Guiana
19th launch from Ariane Launch Area 2, 4th this year · 53rd from Guiana Space Centre, French Guiana
119 launches from this pad · 336 from Guiana Space Centre, French Guiana
103 days after the previous launch from this pad
All launches from Guiana Space Centre, French GuianaOpen in maps
Questions
When did ERS-1 launch?
ERS-1 launched on July 17, 1991. The time is known to the hour, not the minute.
Where can I watch ERS-1?
No webcast is on record for this launch.
What rocket launched ERS-1?
Ariane 40, flown by Arianespace. Ariane 40 spec sheet
Where did ERS-1 launch from?
Ariane Launch Area 2, Guiana Space Centre, French Guiana.
What orbit did ERS-1 reach?
ERS-1, one of 19 catalogued objects, reached a 782 × 785 km orbit inclined 98.6°.
How many satellites did ERS-1 launch?
5 payloads from this launch are catalogued, 5 of them still in orbit (Data from J. McDowell, planet4589.org).