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Inertial Upper Stage-27

IUS-27 was the Boeing-provided two-stage Inertial Upper Stage flown with Chandra on STS-93. After Columbia deployed the combined stack, IUS-27 fired its two solid motors, placed Chandra into transfer orbit, and separated after solar-array deployment.

Identity

Aliases
IUS-27Chandra Inertial Upper StageSTS-93 IUS
Name
Inertial Upper Stage-27
Status
retired

Details

Description
IUS-27 was the Boeing-provided two-stage Inertial Upper Stage flown with Chandra on STS-93. After Columbia deployed the combined stack, IUS-27 fired its two solid motors, placed Chandra into transfer orbit, and separated after solar-array deployment.
First Flight Date
1999-07-23
Manufacturer
Operator
Vehicle Family

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Creation Time
July 17, 2026 at 01:15:36 UTC
Updated Time
July 17, 2026 at 01:15:36 UTC

Other

Last Flight Date
1999-07-23
Search Name
Inertial Upper Stage-27 IUS-27 Chandra Inertial Upper Stage STS-93 IUS