Encyclopedia Astronautica
Delta 7420-XC


Three stage vehicle consisting of 4 x GEM-40 + 1 x EELT Thor/RS-27A + 1 x Delta K with 3.05 m (10 foot) diameter composite fairing

Status: Active.
Gross mass: 165,000 kg (363,000 lb).
Height: 39.00 m (127.00 ft).
Diameter: 2.44 m (8.00 ft).
Thrust: 3,020.00 kN (678,920 lbf).
Apogee: 1,500 km (900 mi).
First Launch: 1998.02.14.
Last Launch: 2007.06.08.
Number: 9 .

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Globalstar American communications satellite. 72 launches, 1998.02.14 (Globalstar FM1) to 2007.10.20 (Globalstar D). The Globalstar constellation was a Medium Earth Orbit system for mobile voice and data communications. More...
  • Cloudsat American earth weather satellite. One launch, 2006.04.28. More...
  • Calipso American earth weather satellite. One launch, 2006.04.28. More...
  • Cosmo-SkyMed Italian military surveillance radar satellite. Constellation of four satellites launched 2007.06.08 - 2010.11.06. More...

See also
  • Delta The Delta launch vehicle was America's longest-lived, most reliable, and lowest-cost space launch vehicle. Development began in 1955 and it continued in service in the 21st Century despite numerous candidate replacements. More...

Associated Manufacturers and Agencies
  • Douglas American manufacturer of rockets, spacecraft, and rocket engines. Boeing Huntington Beach, Huntington Beach, CA, USA. More...

Associated Launch Sites
  • Cape Canaveral America's largest launch center, used for all manned launches. Today only six of the 40 launch complexes built here remain in use. Located at or near Cape Canaveral are the Kennedy Space Center on Merritt Island, used by NASA for Saturn V and Space Shuttle launches; Patrick AFB on Cape Canaveral itself, operated the US Department of Defense and handling most other launches; the commercial Spaceport Florida; the air-launched launch vehicle and missile Drop Zone off Mayport, Florida, located at 29.00 N 79.00 W, and an offshore submarine-launched ballistic missile launch area. All of these take advantage of the extensive down-range tracking facilities that once extended from the Cape, through the Caribbean, South Atlantic, and to South Africa and the Indian Ocean. More...
  • Vandenberg Vandenberg Air Force Base is located on the Central Coast of California about 240 km northwest of Los Angeles. It is used for launches of unmanned government and commercial satellites into polar orbit and intercontinental ballistic missile test launches toward the Kwajalein Atoll. More...
  • Cape Canaveral LC17B Delta launch complex. Part of a dual launch pad complex built for the Thor ballistic missile program in 1956. Upgraded over the decades for use with Thor, Delta, Delta II, and Delta III launch vehicles, it remained in use for over half a century. More...
  • Vandenberg SLC2W Delta launch complex. Originally a Thor 75 SMS launch pad. Upgraded to a space launch complex in 1966. More...
  • Cape Canaveral LC17A Delta launch complex. Part of a dual launch pad complex built for the Thor ballistic missile program in 1956. Pad 17A supported Thor, Delta, and Delta II launches into the 21st Century. More...

Associated Stages
  • Delta K N2O4/Aerozine-50 propellant rocket stage. Loaded/empty mass 6,954/950 kg. Thrust 43.63 kN. Vacuum specific impulse 319 seconds. More...
  • Delta Thor XLT-C Lox/Kerosene propellant rocket stage. Loaded/empty mass 101,900/5,900 kg. Thrust 1,054.20 kN. Vacuum specific impulse 302 seconds. More...
  • GEM 40 Solid propellant rocket stage. Loaded/empty mass 13,064/1,361 kg. Thrust 492.93 kN. Vacuum specific impulse 274 seconds. More...

Delta 7420-XC Chronology


1998 February 14 - . 14:34 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Delta. Launch Vehicle: Delta 7420-XC. LV Configuration: Delta 7420-10C D253.
  • Globalstar FM1 - . Payload: Globalstar s/n FM1. Mass: 222 kg (489 lb). Nation: USA. Agency: Globalstar. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25162 . COSPAR: 1998-008A. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min. Summary: Plane 1. Ascending node 43.9 degrees..
  • Globalstar FM2 - . Payload: Globalstar s/n FM2. Mass: 222 kg (489 lb). Nation: USA. Agency: Globalstar. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25163 . COSPAR: 1998-008B. Apogee: 1,414 km (878 mi). Perigee: 1,412 km (877 mi). Inclination: 52.0100 deg. Period: 114.08 min. Summary: Plane 1. Ascending node 43.8 degrees..
  • Globalstar FM3 - . Payload: Globalstar s/n FM3. Mass: 222 kg (489 lb). Nation: USA. Agency: Globalstar. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25164 . COSPAR: 1998-008C. Apogee: 1,520 km (940 mi). Perigee: 1,509 km (937 mi). Inclination: 52.0000 deg. Period: 116.30 min. Summary: Plane 1. Ascending node 42.4 degrees..
  • Globalstar FM4 - . Payload: Globalstar s/n FM4. Mass: 222 kg (489 lb). Nation: USA. Agency: Globalstar. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25165 . COSPAR: 1998-008D. Apogee: 1,416 km (879 mi). Perigee: 1,412 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min. Summary: Plane 1. Ascending node 43.6 degrees..

1998 April 24 - . 22:38 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Delta. Launch Vehicle: Delta 7420-XC. LV Configuration: Delta 7420-10C D256.
  • Globalstar FM6 - . Payload: Globalstar s/n FM6. Mass: 222 kg (489 lb). Nation: USA. Agency: Globalstar. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25306 . COSPAR: 1998-023A. Apogee: 1,523 km (946 mi). Perigee: 1,503 km (933 mi). Inclination: 52.0000 deg. Period: 116.30 min. Summary: Plane 2. Ascending node 90.4 degrees..
  • Globalstar FM8 - . Payload: Globalstar s/n FM8. Mass: 222 kg (489 lb). Nation: USA. Agency: Globalstar. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25307 . COSPAR: 1998-023B. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min. Summary: Plane 2. Ascending node 88.9 degrees..
  • Globalstar FM14 - . Payload: Globalstar s/n FM14. Mass: 222 kg (489 lb). Nation: USA. Agency: Globalstar. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25308 . COSPAR: 1998-023C. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min. Summary: Plane 2. Ascending node 90.2 degrees..
  • Globalstar FM15 - . Payload: Globalstar s/n FM15. Mass: 222 kg (489 lb). Nation: USA. Agency: Globalstar. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25309 . COSPAR: 1998-023D. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min. Summary: Plane 2. Ascending node 88.0 degrees..

1999 June 10 - . 13:48 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. Launch Pad: SLC17B. LV Family: Delta. Launch Vehicle: Delta 7420-XC. LV Configuration: Delta 7420-10C D270.
  • Globalstar 52 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25770 . COSPAR: 1999-031A. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.
  • Globalstar 47 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25773 . COSPAR: 1999-031D. Apogee: 1,415 km (879 mi). Perigee: 1,412 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.
  • Globalstar 25 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25772 . COSPAR: 1999-031C. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.
  • Globalstar 49 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25771 . COSPAR: 1999-031B. Apogee: 2,101 km (1,305 mi). Perigee: 2,099 km (1,304 mi). Inclination: 52.0000 deg. Period: 129.50 min.

1999 July 10 - . 08:45 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. Launch Pad: SLC17B. LV Family: Delta. Launch Vehicle: Delta 7420-XC. LV Configuration: Delta 7420-10C D272.
  • Globalstar 32 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25851 . COSPAR: 1999-037A. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.
  • Globalstar 35 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25853 . COSPAR: 1999-037C. Apogee: 1,415 km (879 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.
  • Globalstar 51 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25854 . COSPAR: 1999-037D. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.
  • Globalstar 30 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25852 . COSPAR: 1999-037B. Apogee: 1,415 km (879 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.

1999 July 25 - . 07:46 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. Launch Pad: SLC17A. LV Family: Delta. Launch Vehicle: Delta 7420-XC. LV Configuration: Delta 7420-10C D273.
  • Globalstar 26 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25872 . COSPAR: 1999-041A. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.
  • Globalstar 43 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25874 . COSPAR: 1999-041C. Apogee: 2,044 km (1,270 mi). Perigee: 2,020 km (1,250 mi). Inclination: 51.9000 deg. Period: 127.90 min.
  • Globalstar 28 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25873 . COSPAR: 1999-041B. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.
  • Globalstar 48 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25875 . COSPAR: 1999-041D. Apogee: 1,415 km (879 mi). Perigee: 1,412 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.

1999 August 17 - . 04:37 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. Launch Pad: SLC17B. LV Family: Delta. Launch Vehicle: Delta 7420-XC. LV Configuration: Delta 7420-10C D274.
  • Globalstar 24 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25883 . COSPAR: 1999-043A. Apogee: 2,113 km (1,312 mi). Perigee: 2,108 km (1,309 mi). Inclination: 52.0000 deg. Period: 129.70 min.
  • Globalstar 54 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25886 . COSPAR: 1999-043D. Apogee: 2,024 km (1,257 mi). Perigee: 2,021 km (1,255 mi). Inclination: 52.0000 deg. Period: 127.70 min.
  • Globalstar 27 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25884 . COSPAR: 1999-043B. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min.
  • Globalstar 53 - . Nation: USA. Agency: Globalstar. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 25885 . COSPAR: 1999-043C. Apogee: 1,970 km (1,220 mi). Perigee: 1,961 km (1,218 mi). Inclination: 52.0000 deg. Period: 126.40 min.

2000 February 8 - . 21:24 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. Launch Pad: SLC17B. LV Family: Delta. Launch Vehicle: Delta 7420-XC. LV Configuration: Delta 7420-10C D276.
  • Globalstar M060 - . Payload: Globalstar 60. Mass: 450 kg (990 lb). Nation: USA. Agency: Globalsat. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 26081 . COSPAR: 2000-008A. Apogee: 1,414 km (878 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min. Summary: Mobile Telephony. These four Globalstar satellites completed the Globalstar initial constellation..
  • Globalstar M063 - . Payload: Globalstar 63. Mass: 450 kg (990 lb). Nation: USA. Agency: Globalsat. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 26083 . COSPAR: 2000-008C. Apogee: 1,415 km (879 mi). Perigee: 1,413 km (877 mi). Inclination: 52.0000 deg. Period: 114.10 min. Summary: Mobile Telephony. .
  • Globalstar M062 - . Payload: Globalstar 62. Mass: 450 kg (990 lb). Nation: USA. Agency: Globalsat. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 26082 . COSPAR: 2000-008B. Apogee: 1,418 km (881 mi). Perigee: 1,417 km (880 mi). Inclination: 52.0061 deg. Period: 114.09 min. Summary: Mobile Telephony. .
  • Globalstar M064 - . Payload: Globalstar 64. Mass: 450 kg (990 lb). Nation: USA. Agency: Globalsat. Manufacturer: Palo Alto; Alenia. Class: Communications. Type: Civilian communications satellite. Spacecraft: Globalstar. USAF Sat Cat: 26084 . COSPAR: 2000-008D. Apogee: 934 km (580 mi). Perigee: 915 km (568 mi). Inclination: 52.0072 deg. Period: 103.43 min. Summary: Mobile Telephony. .

2006 April 28 - . 10:02 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Delta 7420-XC. LV Configuration: Delta 7420-10C D314.
  • Cloudsat - . Mass: 848 kg (1,869 lb). Nation: USA. Agency: NASA; USAF; CSA. Manufacturer: Ball. Class: Earth. Type: Weather satellite. Spacecraft: Cloudsat. USAF Sat Cat: 29107 . COSPAR: 2006-016A. Apogee: 704 km (437 mi). Perigee: 702 km (436 mi). Inclination: 98.2000 deg. Period: 98.80 min. Summary: Cloudsat carried a 94 GHz cloud profiling radar. Both the Cloudsat and Calipso satellites were in the A-train polar constellation, in the same orbit as the large Aqua and Aura satellites..
  • Calipso - . Mass: 587 kg (1,294 lb). Nation: USA. Agency: NASA; CNES. Manufacturer: Alenia. Class: Earth. Type: Weather satellite. Spacecraft: Calipso. USAF Sat Cat: 29108 . COSPAR: 2006-016B. Apogee: 703 km (436 mi). Perigee: 702 km (436 mi). Inclination: 98.2000 deg. Period: 98.80 min. Summary: Calipso carried a 1-meter laser lidar telescope to study clouds and aerosols, and an imaging infrared radiometer..

2007 June 8 - . 02:34 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Delta 7420-XC. LV Configuration: Delta 7420-10C D324.
  • Cosmo-SkyMed 1 - . Mass: 1,700 kg (3,700 lb). Nation: Italy. Agency: ASI. Manufacturer: Alenia. Class: Surveillance. Type: Civilian surveillance radar satellite. Spacecraft: Cosmo-SkyMed. USAF Sat Cat: 31598 . COSPAR: 2007-023A. Apogee: 626 km (388 mi). Perigee: 622 km (386 mi). Inclination: 97.9000 deg. Period: 97.20 min. Summary: The first of four Constellation of Small Satellites for Mediterranean basin Observation, Synthetic Aperture Radar satellites for primarily Italian military surveillance, but with products made available to civilian users as well..

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