• Thumbnail for Inertial Upper Stage
    The Inertial Upper Stage (IUS), originally designated the Interim Upper Stage, was a two-stage, solid-fueled space launch system developed by Boeing for...
    17 KB (1,234 words) - 09:47, 16 December 2023
  • Thumbnail for Titan IV
    The Titan IV could be launched with no upper stage, the Inertial Upper Stage (IUS), or the Centaur upper stage. The Titan IV was made up of two large...
    35 KB (3,131 words) - 22:07, 11 March 2024
  • Thumbnail for Magellan (spacecraft)
    to be launched from the Space Shuttle, the first one to use the Inertial Upper Stage booster, and the first spacecraft to test aerobraking as a method...
    46 KB (4,629 words) - 13:13, 24 October 2023
  • Thumbnail for Space Shuttle
    manually align on a star. In 1991, NASA began upgrading the inertial measurement units with an inertial navigation system (INS), which provided more accurate...
    108 KB (12,073 words) - 09:28, 9 March 2024
  • Thumbnail for Space tug
    refer to expendable upper stages, such as Fregat, Spaceflight Industries Sherpa, and the Inertial Upper Stage, when such stages are optional. The space...
    35 KB (3,363 words) - 21:19, 27 February 2024
  • Thumbnail for Atlas II
    delivered directly to geostationary orbit using the Transtage or Inertial Upper Stage, and so were not capable of performing their own circularization...
    20 KB (1,922 words) - 06:01, 25 March 2024
  • Thumbnail for Tracking and Data Relay Satellite System
    1980s and 1990s with the Space Shuttle and made use of the Inertial Upper Stage, a two-stage solid rocket booster developed for the shuttle. Other TDRS...
    19 KB (2,538 words) - 18:12, 24 October 2023
  • and propulsion technologies. S-IC first stage Lunar Roving Vehicle X-38 Crew Return Vehicle Inertial Upper Stage (Titan IV and Space Shuttle) International...
    20 KB (1,876 words) - 14:27, 26 March 2024
  • Thumbnail for Integrated Apogee Boost Stage
    an upper stage capable of delivering them there directly. Earlier DSCS III satellites had launched on the Titan 34D (using the Transtage or Inertial Upper...
    5 KB (371 words) - 22:12, 26 September 2023
  • Thumbnail for STS-26
    its attached Inertial Upper Stage (IUS), were deployed from Discovery's cargo bay six hours and 13 minutes into the flight. The first stage of the IUS placed...
    17 KB (1,683 words) - 03:46, 2 March 2024
  • Thumbnail for STS-44
    replacement and testing of a malfunctioning redundant inertial measurement unit on the Inertial Upper Stage (IUS) booster attached to the Defense Support Program...
    9 KB (576 words) - 10:04, 11 February 2024
  • Thumbnail for Titan 34D
    featured Stage 1 and Stage 2 stretched with more powerful UA1206 solid motors. A variety of upper stages were available, including the Inertial Upper Stage, the...
    15 KB (1,404 words) - 22:12, 21 November 2023
  • Thumbnail for Titan (rocket family)
    Titan IV could be launched with a Centaur upper stage, the USAF Inertial Upper Stage (IUS), or no upper stage at all. This rocket was used almost exclusively...
    30 KB (3,323 words) - 06:51, 1 February 2024
  • Thumbnail for Shuttle-Centaur
    Shuttle-Centaur (category Rocket stages)
    were ultimately launched using the much less powerful solid-fueled Inertial Upper Stage (IUS), Galileo needing multiple gravitational assists from Venus...
    76 KB (9,422 words) - 17:55, 8 December 2023
  • Thumbnail for STS-38
    and upper aft bulkhead, similar to the one released from STS-53, confirms that the ASE (Airborne Support Equipment) for the Inertial Upper Stage (IUS)...
    14 KB (1,165 words) - 07:42, 30 January 2024
  • Thumbnail for STS-93
    Observatory (formerly the Advanced X-ray Astrophysics Facility) with its Inertial Upper Stage booster. At its launch, Chandra was the most sophisticated X-ray...
    22 KB (1,974 words) - 05:06, 2 March 2024
  • Thumbnail for Chandra X-ray Observatory
    11:47 UTC. The Inertial Upper Stage's first stage motor ignited at 12:48 UTC, and after burning for 125 seconds and separating, the second stage ignited at...
    37 KB (3,528 words) - 11:53, 13 March 2024
  • Thumbnail for Space Shuttle Challenger disaster
    : 10–13  The primary mission of the Challenger crew was to use an Inertial Upper Stage (IUS) to deploy a Tracking and Data Relay Satellite (TDRS), named...
    116 KB (11,614 words) - 20:30, 28 March 2024
  • Thumbnail for Defense Support Program
    Typically, DSP satellites were launched on Titan IVB boosters with Inertial Upper Stages. However, one DSP satellite (DSP-16) was launched using the Space...
    13 KB (1,485 words) - 07:00, 24 January 2024
  • Thumbnail for STS-51-L
    Deployment of Tracking Data Relay Satellite-B (TDRS-B) with an Inertial Upper Stage (IUS) booster Flight of "Shuttle Pointed Autonomous Research Tool...
    19 KB (1,382 words) - 22:35, 23 March 2024
  • Thumbnail for STS-41
    the polar regions of Sun. Attached to Ulysses were two upper stages, the Inertial Upper Stage (IUS) and a mission-specific Payload Assist Module-S (PAM-S)...
    14 KB (1,222 words) - 07:40, 30 January 2024
  • Thumbnail for Transtage
    Transtage (category Rocket stages)
    September 1989, boosted by a Titan 34D rocket. Centaur (rocket stage) Inertial Upper Stage RM-81 Agena Wade, Mark. "AJ10-138". Encyclopedia Astronautica...
    4 KB (326 words) - 20:54, 5 July 2023
  • Thumbnail for STS-34
    flight. The primary payload, the Galileo spacecraft with its attached Inertial Upper Stage (IUS), was successfully deployed on its journey to Jupiter. STS-34...
    15 KB (1,390 words) - 11:19, 3 February 2024
  • Thumbnail for Ulysses (spacecraft)
    combination of solid rocket motors. This upper stage consisted of a two-stage Boeing IUS (Inertial Upper Stage), plus a McDonnell Douglas PAM-S (Payload...
    35 KB (3,824 words) - 10:12, 9 March 2024
  • This is a list of upper stages used on rockets. bold denotes active configurations italics denotes configurations in development Multistage rocket Apogee...
    4 KB (59 words) - 09:24, 28 December 2023
  • be launched either with the Centaur upper stage, with the Inertial Upper Stage (IUS) or without any upper stage. It was almost exclusively used to launch...
    23 KB (2,796 words) - 01:19, 27 November 2023
  • navigation 50 years ago." Throughout the 1980s, Aerospace supported the Inertial Upper Stage (IUS), the Strategic Defense Initiative (SDI), the Milstar and DSCS...
    18 KB (1,909 words) - 16:31, 25 March 2024
  • Thumbnail for Transfer Orbit Stage
    TOS was designed to be a lower-cost alternative to Inertial Upper Stage and Centaur G upper stages. The TOS was designed to be deployed by the Titan 34D...
    3 KB (324 words) - 04:15, 22 April 2022
  • satellite owing to the presence of two upper stages in orbit after its deployment, suggesting that an Inertial Upper Stage (IUS) had been used to deploy it...
    5 KB (438 words) - 02:27, 13 March 2022
  • Thumbnail for STS-51-J
    System) satellites were launched into geostationary orbits by an Inertial Upper Stage (IUS). The DSCS satellites used X-band frequencies (8/7 GHz). Each...
    7 KB (467 words) - 20:12, 13 July 2023