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Delta 7320-10
Part of Thor Family
American orbital launch vehicle. Three stage vehicle consisting of 3 x GEM-40 + 1 x EELT Thor/RS-27A + 1 x Delta K

Status: Active. First Launch: 1999-06-24. Last Launch: 2003-01-13. Number: 4 . Thrust: 2,500.00 kN (562,000 lbf). Gross mass: 151,700 kg (334,400 lb). Height: 38.90 m (127.60 ft). Diameter: 2.44 m (8.00 ft). Apogee: 1,000 km (600 mi).



Family: orbital launch vehicle. Country: USA. Spacecraft: BCP-2000, FUSE, EO-1, Munin, SAC-C, QuickBird, Jason, CHIPSat, ICESat, RS-300. Launch Sites: Cape Canaveral, Vandenberg, Cape Canaveral LC17A, Vandenberg SLC2W. Stages: Delta Thor XLT-C, Delta K, GEM 40. Agency: Douglas.

1999 June 24 - . 15:44 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. Launch Pad: SLC17A. LV Family: Thor. Launch Vehicle: Delta 7320-10.
  • FUSE - . Nation: USA. Agency: NASA Greenbelt. Manufacturer: Germantown. Class: Astronomy. Type: X-ray astronomy satellite. Spacecraft Bus: MidStar. Spacecraft: FUSE. USAF Sat Cat: 25791 . COSPAR: 1999-035A. Apogee: 760 km (470 mi). Perigee: 745 km (462 mi). Inclination: 25.0000 deg. Period: 99.90 min.

    The Delta 3-m payload fairing was successfully jettisoned and the Far Ultraviolet Spectroscopic Explorer was placed in a 754 km x 769 km x 25.0 degree initial orbit. After separation the Delta second stage then a depletion burn and was left in a 182 x 915 km x 19.1 degree orbit from which it would quickly decay out of orbit. Checkout of FUSE in orbit was proceeding well as of July 1.


2000 November 21 - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Thor. Launch Vehicle: Delta 7320-10.
  • EO-1 - . Mass: 529 kg (1,166 lb). Nation: USA. Agency: NASA Greenbelt. Manufacturer: Swales. Class: Earth. Type: Earth resources satellite. Spacecraft: EO-1. USAF Sat Cat: 26619 . COSPAR: 2000-075A. Apogee: 703 km (436 mi). Perigee: 702 km (436 mi). Inclination: 98.2000 deg. Period: 98.80 min.

    First use of a Delta dual payload attach fitting. The Earth Orbiter 1 satellite was part of NASA's New Millenium Program. Complementing the New Millenium's Deep Space series, EO-1 was a NASA-Goddard satellite which demonstrated technology for the next generation Landsat. It flew in formation with Landsat-7 for comparison purposes, using a hydrazine thruster to adjust its orbit. The satellite used a MIDEX-derived bus built by Swales Aerospace; dry mass was 566 kg. The main instruments were ALI (Advanced Land Imager) and the Hyperion 220-band imaging spectrometer. At 1835 GMT the Delta second stage completed its first burn and entered a 185 x 713 km x 98.2 deg transfer orbit. At 1920 GMT the orbit was circularised and EO-1 separated at 1925 GMT into a 682 x 729 km x 98.2 deg orbit.

  • SAC-C - . Mass: 529 kg (1,166 lb). Nation: Argentina. Agency: CONAE. Manufacturer: INVAP. Program: SAC. Class: Earth. Type: Earth resources satellite. Spacecraft: SAC-C. USAF Sat Cat: 26620 . COSPAR: 2000-075B. Apogee: 704 km (437 mi). Perigee: 701 km (435 mi). Inclination: 98.2000 deg. Period: 98.80 min.

    The SAC-C Satelite de Aplicaciones Cientificas C was developed by the Argentine space agency CONAE and built by the Argentine company INVAP. The 467 kg satellite carried a battery of earth observing instruments for Argentine forestry and agriculture studies. SAC-C also carried a NASA experiment which used the distortion of GPS signals observed near the horizon to derive atmospheric conditions. The DPAF dual payload support structure, derived from Ariane's SPELDA, was ejected after deployment of the EO-1 satellite from the Delta stage to reveal SAC-C. After a further Delta burn SAC-C was ejected at 1955 GMT into a 687 x 707 km x 98.3 deg orbit.

  • Munin - . Mass: 529 kg (1,166 lb). Nation: Sweden. Agency: Seal Beach. Manufacturer: SISP. Class: Technology. Type: Navigation technology satellite. Spacecraft: Munin. USAF Sat Cat: 26621 . COSPAR: 2000-075C. Apogee: 1,797 km (1,116 mi). Perigee: 701 km (435 mi). Inclination: 95.4000 deg. Period: 110.50 min.

    The small 6 kg Munin nanosatellite was built by Swedish students in collaboration with the Swedish Insitute for Space Physics (IRF) and carried a particle detector, a spectrometer, and an auroral camera. After deployment of EO-1 and SAC-C a fourth burn put the Delta second stage in a 697 x 1800 km x 95.4 deg orbit, after which Munin was ejected from the stage.


2001 October 18 - . 18:51 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Thor. Launch Vehicle: Delta 7320-10.
  • QuickBird 2 - . Mass: 980 kg (2,160 lb). Nation: USA. Agency: DigitalGlobe. Manufacturer: Ball. Class: Surveillance. Type: Civilian surveillance satellite. Spacecraft: BCP-2000. Decay Date: 2015-01-27 . USAF Sat Cat: 26953 . COSPAR: 2001-047A. Apogee: 471 km (292 mi). Perigee: 471 km (292 mi). Inclination: 97.2000 deg. Period: 94.00 min.

    The QuickBird commercial imaging satellite was owned by DigitalGlobe (formerly EarthWatch) and used a Ball BCP2000 bus with a launch mass of 1028 kg and a dry mass of about 995 kg. The Delta upper stage entered a 185 x 472 km x 98.1 deg orbit at 1902 GMT. At 1948 GMT it reached apogee and fired again to deploy QuickBird into a 461 x 465 km x 97.2 deg orbit. The Delta then made a series of unusual depletion burns, lowering its perigee to 167 km and changing inclination to 108.9 deg.

    Quickbird 2 was to be operational after a few months of calibration and "ground-truth" checkouts to market high resolution images. The 1.0 tonne satellite was reported to be capable of images with a resolution as small as 0.6 meter, though the standard products were to be coarser. Unlike the comparable quality images from IKONOS images, some of which are currently marketed exclusively to the US military, all Quickbird 2 images may be available in the open market.


2003 January 13 - . 00:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Thor. Launch Vehicle: Delta 7320-10.
  • ICESat - . Payload: EOS-LAM. Mass: 1,000 kg (2,200 lb). Nation: USA. Agency: NASA. Manufacturer: Ball. Class: Earth. Type: Sea satellite. Spacecraft: BCP-2000. Decay Date: 2010-08-30 . USAF Sat Cat: 27642 . COSPAR: 2003-002A. Apogee: 610 km (379 mi). Perigee: 593 km (368 mi). Inclination: 94.0089 deg. Period: 96.56 min. Oceanography, gravimetry, altimetry mission. Delayed from March 30, May 12, August 30, September 10, December 15 and 20, 2002; and Jan. 11 and 12, 2003..
  • CHIPSat - . Payload: CHIPSat BD 2. Mass: 85 kg (187 lb). Nation: USA. Agency: NASA. Manufacturer: SpaceDev. Class: Astronomy. Type: X-ray astronomy satellite. Spacecraft: CHIPSat. USAF Sat Cat: 27643 . COSPAR: 2003-002B. Apogee: 601 km (373 mi). Perigee: 585 km (363 mi). Inclination: 94.0070 deg. Period: 96.39 min. Astrophysics mission. Delayed from March 30, May 12, August 30, September 10, December 15 and 20, 2002; and Jan. 11 and 12, 2003..


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