Delta 7925H (original) (raw)

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Delta 7925H

Part of Thor

American orbital launch vehicle. Four stage vehicle consisting of 9 x GEM-46 + 1 x EELT Thor/RS-27A + 1 x Delta K + 1 x Star 48B

Status: Active. First Launch: 2003-07-08. Last Launch: 2007-09-27. Number: 3 . Payload: 5,089 kg (11,219 lb). Thrust: 3,110.00 kN (699,150 lbf). Gross mass: 231,870 kg (511,180 lb). Height: 38.10 m (124.90 ft). Diameter: 2.44 m (8.00 ft). Apogee: 185 km (114 mi).

LEO Payload: 5,089 kg (11,219 lb) to a 185 km orbit. Payload: 1,818 kg (4,008 lb) to a GTO.

More at: Delta 7925H.

Family: orbital launch vehicle. Country: USA. Spacecraft: MER, Messenger, Dawn. Launch Sites: Cape Canaveral, Cape Canaveral LC17B. Stages: Delta Thor XLT-C, Delta K, GEM 46, Star 48. Agency: Douglas.

2003 July 8 - . 04:18 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. Launch Pad: SLC17B. LV Family: Thor. Launch Vehicle: Delta 7925H.

Opportunity (Mars Exploration Rover B, MER-1) - . Mass: 1,063 kg (2,343 lb). Nation: USA. Agency: JPL. Class: Mars. Type: Mars probe. Spacecraft: MER. Decay Date: 2004-01-25 . USAF Sat Cat: 27849 . COSPAR: 2003-032A.
NASA's second Mars Exploration Rover, MER-B (MER-1) 'Opportunity', was launched by a Delta 7925H, which was similar to the standard 7925 model but with larger GEM-46 solid strapon motors previously used only on the Delta III 8930. MER-B separated from the Delta third stage at 0436 UTC and was then on its way to Mars. The launch had been delayed from June 26, 29 and 30, July 3, 6 and 7. Mass included cruise stage, lander and rover. Rover mass was 170 kg, lander 360 kg.

2004 August 3 - . 06:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. Launch Pad: SLC17B. LV Family: Thor. Launch Vehicle: Delta 7925H.

Messenger - . Payload: Discovery 8. Mass: 1,066 kg (2,350 lb). Nation: USA. Agency: NASA. Manufacturer: APL. Program: Discovery series. Class: Mercury. Type: Mercury probe. Spacecraft: Messenger. USAF Sat Cat: 28391 . COSPAR: 2004-030A. Apogee: 0 km (0 mi). Perigee: 0 km (0 mi). Inclination: 0.00 deg. Period: 0.00 min.
The NASA Messenger probe to Mercury was was first placed into a parking orbit. The Delta booster second stage's second burn raised the orbit, then the PAM-D solid motor burned to put the probe on an escape trajectory into a 0.92 x 1.08 AU x 6.4 deg heliocentric orbit. Messenger (Mercury Surface, Space Environment, Geochemistry and Ranging) was to make an Earth flyby on August 1, 2005; Venus flybys in 2006 and 2007; and Mercury encounters in January and October 2008 , September 2009 and March 2011 . On this last encounter the Aerojet 660N engine was to fire to put Messenger into a 200 x 15,193 km x 80 deg orbit around Mercury. Launch delayed from March 10, May 11, August 2

2007 September 27 - . 11:34 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. Launch Pad: SLC17B. LV Family: Thor. Launch Vehicle: Delta 7925H.

Dawn - . Mass: 1,218 kg (2,685 lb). Nation: USA. Agency: Martin. Class: Surveillance. Type: Civilian surveillance satellite. Spacecraft: Dawn. USAF Sat Cat: 32249 . COSPAR: 2007-043A.
Asteroid belt unmanned probe designed to first orbit and survey the asteroid Vesta, and then fly on to the largest asteroid, Ceres. The Delta upper stage boosted the spacecraft and PAM-D solid third stage to 9.01 km/sec and a 185 km x 6835 km orbit. The PAM-D fired at 12:29 GMT and released Dawn after accelerating it to 11.50 km/sec and sending it into a 1.00 AU x 1.62 AU x 0.5 deg solar orbit. The ion engines were ignited on 6 October. Using its ion engines and a Mars flyby in February 2009, Dawn was scheduled to reach Vesta in 2011 and Ceres in 2015.

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