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Orbital Sciences CorporationPegasus HybridVandenberg Space Force Base, Air launch to orbit

Miniature Sensor Technology Integration 3 (MSTI-3)

Launched

May 17, 1996

Launch Successful

Image: NASA

Summary

MSTI-3 launched on an Orbital Sciences Corporation Pegasus Hybrid from Vandenberg Space Force Base, Air launch to orbit on May 17, 1996. It was Orbital Sciences Corporation's 12th launch, 2nd this year and humanity's 4,074th orbital launch attempt. It was the 2nd Pegasus Hybrid flight and the 1st this year. The payload was bound for Sun-Synchronous Orbit (SSO). MSTI 3, one of 2 catalogued objects, reached a 298 × 369 km orbit inclined 97.1°. 2 objects from this launch are catalogued, one of them a payload.

Watch
No webcast on record.
Booster
No booster details on record.
Mission
Technology · Sun-Synchronous Orbit (SSO)
Milestone
2nd Pegasus Hybrid flight · 1st this yearOrbital Sciences Corporation's 12th launch2nd this yearhumanity's 4,074th orbital launch attempt33rd orbital launch attempt this year

Flight preview

Orbit: as tracked

97.1°Inclination
298 × 369 kmPerigee × apogeefrom mean elements
91.1 minPeriodfrom mean elements
328.9°Ascending node
11109 d agoElement epoch1996-05-17 03:42 UTC · stale

MSTI 3 · NORAD 23868 · 1996-031 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
MSTI 3
Object ID
1996-031A
Epoch
1996-05-17 03:42:39 UTC
Mean motion
15.81517987 rev/day
Eccentricity
0.0053083
Inclination
97.0527°
Ascending node
328.9254°
Arg. of perigee
169.5026°
Mean anomaly
192.1111°
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: SSO. Ascent drawn from padside's representative profile.

Catalogued objects

2 catalogued: 1 payload, 1 rocket stage; none still in orbit

  • MSTI 3 · NORAD 23868 · deorbited December 11, 1997

Pegasus F11 Stage 3 · re-entered October 11, 1996

Data from J. McDowell, planet4589.org

About this launch

MSTI-3 was the third Miniature Sensor Technology Integration satellite for the US Air Force and the Ballistic Missile Defense Organization. It gathered infrared background clutter data and tested tracking of ballistic missiles during their coast phase from a sun-synchronous orbit.

Pad

Map of Vandenberg Space Force Base

Vandenberg Space Force Base, Air launch to orbit

5th launch from Vandenberg Space Force Base, 2nd this year · 11th from Air launch to orbit

22 launches from this pad · 52 from Air launch to orbit

69 days after the previous launch from this pad

Questions

When did MSTI-3 launch?

MSTI-3 launched on May 17, 1996. The time is known to the hour, not the minute.

Where can I watch MSTI-3?

No webcast is on record for this launch.

What rocket launched MSTI-3?

Pegasus Hybrid, flown by Orbital Sciences Corporation. Pegasus Hybrid spec sheet

Where did MSTI-3 launch from?

Vandenberg Space Force Base, Air launch to orbit.

What orbit did MSTI-3 reach?

MSTI 3, one of 2 catalogued objects, reached a 298 × 369 km orbit inclined 97.1°.

How many satellites did MSTI-3 launch?

1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).