Delta 7425-9.5

In-active Delta

McDonnell Douglas (MDC)

Dec. 11, 1998

Description

Delta II was an expendable launch system, originally designed and built by McDonnell Douglas. Delta II was part of the Delta rocket family and entered service in 1989. Delta II vehicles included the Delta 6000, and the two later Delta 7000 variants ("Light" and "Heavy"). The rocket flew its final mission ICESat-2 on 15 September 2018, earning the launch vehicle a streak of 100 successful missions in a row, with the last failure being GPS IIR-1 in 1997.

Specifications
  • Stages
    4
  • Length
    39.0 m
  • Diameter
    2.44 m
  • Fairing Diameter
    2.44 m
  • Launch Mass
    170 T
  • Thrust
    3020 kN
Family
  • Name
    Delta 7425-9.5
  • Family
    Delta
  • Variant
    7425-9.5
  • Alias
  • Full Name
    Delta 7425-9.5
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
  • Geostationary Transfer Orbit
  • Direct Geostationary
  • Sun-Synchronous Capacity

McDonnell Douglas

Commercial
None
MDC

None

Delta 7425-9.5 | Contour

McDonnell Douglas | USA
Cape Canaveral, FL, USA
July 3, 2002, 6:47 a.m.
Status: Launch Successful
Mission:

The CONTOUR (Comet Nucleus Tour) probe, built and operated by the Johns Hopkins University's Applied Physics Laboratory (APL), began its five year mission to explore three comets, using repeated encounters with the earth to modify its orbit in order to reach each target.

Sun-Synchronous Orbit
Explore Share

Delta 7425-9.5 | Mars Polar Lander

McDonnell Douglas | USA
Cape Canaveral, FL, USA
Jan. 3, 1999, 8:21 p.m.
Status: Launch Successful
Mission:

The Mars Polar Lander, also known as the Mars Surveyor '98 Lander, was a 290-kilogram robotic spacecraft lander launched by NASA on January 3, 1999 to study the soil and climate of Planum Australe, a region near the south pole on Mars. It formed part of the Mars Surveyor '98 mission. On December 3, 1999, however, after the descent phase was expected to be complete, the lander failed to reestablish communication with Earth. A post-mortem analysis determined the most likely cause of the mishap was premature termination of the engine firing prior to the lander touching the surface, causing it to strike the planet at a high velocity.

Heliocentric N/A
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Delta 7425-9.5 | Mars Climate Orbiter

McDonnell Douglas | USA
Cape Canaveral, FL, USA
Dec. 11, 1998, 6:45 p.m.
Status: Launch Successful
Mission:

The Mars Surveyor '98 program is comprised of two spacecraft launched separately, the MCO (Mars Climate Orbiter, formerly the Mars Surveyor '98 Orbiter) and the MPL (Mars Polar Lander, formerly the Mars Surveyor '98 Lander). The two missions were to study the Martian weather, climate, and water and carbon dioxide budget, in order to understand the reservoirs, behavior, and atmospheric role of volatiles and to search for evidence of long-term and episodic climate changes. The Mars Climate Orbiter was destroyed when a navigation error caused it to miss its target altitude at Mars by 80 to 90 km, instead entering the Martian atmosphere at an altitude of 57 km during the orbit insertion maneuver.

Heliocentric N/A
Explore Share

Falcon 9
Success
1 day, 11 hours ago
Galileo L12 (FOC FM25 & FM27)
Launch Complex 39A - Kennedy Space Center, FL, USA

Two satellites for Europe's Galileo navigation system. Originally planned for launch on Soyuz-ST and then Ariane 6 but both were unavailable. Gali…


Long March 2
Success
3 days, 22 hours ago
Shenzhou 18
Launch Area 4 (SLS-1 / 921) - Jiuquan Satellite Launch Center, People's Republic of China

Seventh crewed flight to the Chinese space station.


Electron
Success
5 days, 13 hours ago
Beginning Of The Swarm (ACS3 & NeonSat-1)
Rocket Lab Launch Complex 1B - Onenui Station, Mahia Peninsula, New Zealand

NASA's Advanced Composite Solar Sail System (ACS3) is a technology demonstration mission tasked with deploying a composite boom solar sail. NeonSa…


Falcon 9
Success
5 days, 13 hours ago
Starlink Group 6-53
Space Launch Complex 40 - Cape Canaveral, FL, USA

A batch of 23 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 2D
Success
1 week, 1 day ago
Yaogan 42-02
Launch Complex 3 (LC-3/LA-1) - Xichang Satellite Launch Center, People's Republic of China

The Yaogan 42-02 is a Chinese military “remote sensing” satellite of unknown purposes.