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Lockheed MartinAtlas IIASSpace Launch Complex 3E, Vandenberg SFB, CA, USA

Terra

Launched

December 18, 1999

Launch Successful

Image: NASA

Summary

Terra launched on a Lockheed Martin Atlas IIAS from Space Launch Complex 3E, Vandenberg SFB, CA, USA on December 18, 1999. It was Lockheed Martin's 46th launch, 8th this year and humanity's 4,362nd orbital launch attempt. It was the 18th Atlas IIAS flight and the 4th this year. The payload was bound for Polar Orbit (PO). Terra, one of 2 catalogued objects, reached a 667 × 704 km orbit inclined 98.2°. 2 objects from this launch are catalogued, one of them a payload.

Watch
No webcast on record.
Booster
No booster details on record.
Mission
Earth Science · Polar Orbit (PO)
Milestone
18th Atlas IIAS flight · 4th this yearLockheed Martin's 46th launch8th this yearhumanity's 4,362nd orbital launch attempt73rd orbital launch attempt this year

Flight preview

Orbit: as tracked

98.2°Inclination
667 × 704 kmPerigee × apogeefrom mean elements
98.3 minPeriodfrom mean elements
66.9°Ascending node
9798 d agoElement epoch1999-12-18 20:02 UTC · stale

Terra · NORAD 25994 · 1999-068 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
TERRA
Object ID
1999-068A
Epoch
1999-12-18 20:02:43 UTC
Mean motion
14.64664121 rev/day
Eccentricity
0.0026528
Inclination
98.2112°
Ascending node
66.9361°
Arg. of perigee
147.8117°
Mean anomaly
212.9753°
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

2 catalogued: 1 payload, 1 rocket stage; 1 still in orbit

  • Terra · NORAD 25994 · in orbit

Centaur AC-141 · re-entered September 21, 2000

Data from J. McDowell, planet4589.org

About this launch

The Terra (formally known as EOS-AM-1) satellite is the flagship of EOS. It provides global data on the state of the atmosphere, land, and oceans, as well as their interactions with solar radiation and with one another.

News

2 stories

Pad

Map of Space Launch Complex 3E

Space Launch Complex 3E, Vandenberg SFB, CA, USA

29th launch from Space Launch Complex 3E, 1st this year · 596th from Vandenberg SFB, CA, USA

48 launches from this pad · 919 from Vandenberg SFB, CA, USA

about 13 years after the previous launch from this pad

Questions

When did Terra launch?

Terra launched on December 18, 1999. The time is known to the hour, not the minute.

Where can I watch Terra?

No webcast is on record for this launch.

What rocket launched Terra?

Atlas IIAS, flown by Lockheed Martin. Atlas IIAS spec sheet

Where did Terra launch from?

Space Launch Complex 3E, Vandenberg SFB, CA, USA.

What orbit did Terra reach?

Terra, one of 2 catalogued objects, reached a 667 × 704 km orbit inclined 98.2°.

How many satellites did Terra launch?

1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).

Which program is Terra part of?

NASA Large Strategic Science Missions. About NASA Large Strategic Science Missions