Explorer 21

Overview

Destination: Elliptical Orbit
Mission: Astrophysics

Elliptical Orbit Space Launch Complex 17A Cape Canaveral SFS, FL, USA

Explorer 21 (IMP 2) was a solar-cell and chemical-battery powered spacecraft instrumented for interplanetary and distant magnetospheric studies of energetic particles, cosmic rays, magnetic fields, and plasmas.

Thor Delta C

Family:
Configuration: Delta C

American orbital launch vehicle family with Thor first stage and a delta second stage.

Specifications
  • Stages
    3
  • Length
    27.5 m
  • Diameter
    2.44 m
  • Fairing Diameter
    2.44 m
  • Launch Mass
    52.0 T
  • Thrust
    667.0 kN
Family
  • Name
    Thor Delta C
  • Family
  • Variant
    Delta C
  • Alias
  • Full Name
    Thor Delta C
Payload Capacity
  • Launch Cost
  • Low Earth Orbit
    81.0 kg
  • Geostationary Transfer Orbit
  • Direct Geostationary
  • Sun-Synchronous Capacity

McDonnell Douglas

McDonnell Douglas

(MDC)

Successes: 0 Failures: 0 Pending: 0

Agency Type:

WIKI

Cape Canaveral SFS, FL, USA

Space Launch Complex 17A


Falcon 9
Success
23 hours, 59 minutes ago
Starlink Group 9-10
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 20 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 2
Success
1 day, 2 hours ago
PIESAT-2 01-04
Launch Area 4 (SLS-2 / 603) - Jiuquan Satellite Launch Center, People's Republic of China

4 X-band synthetic-aperture radar Earth observation satellites for the Chinese Earth observation satellite company PIESAT.


Falcon 9
Success
2 days, 9 hours ago
Starlink Group 6-77
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

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


Electron
Success
4 days, 19 hours ago
Changes In Latitudes, Changes In Attitudes
Rocket Lab Launch Complex 1B - Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand

Launch of a yet to identified satellite to SSO for an undisclosed customer. The customer is suspected to be Low Earth Orbit communication satellite c…


Falcon 9
Success
5 days, 3 hours ago
Dragon CRS-2 SpX-31
Launch Complex 39A - Kennedy Space Center, FL, USA

31st commercial resupply services mission to the International Space Station operated by SpaceX. The flight will be conducted under the second Commer…


Soyuz 2.1b/Fregat-M
Success
5 days, 6 hours ago
Ionosfera-M 1 & 2
Cosmodrome Site 1S - Vostochny Cosmodrome, Siberia, Russian Federation

Ionosfera is a constellation of four ionospheric and magnetospheric research satellites developed by for Roscosmos for the project Ionozond. The s…


H3-22
Success
5 days, 23 hours ago
DSN 3 (Kirameki 3)
Yoshinobu Launch Complex LP-2 - Tanegashima Space Center, Japan

DSN 3, also known as Kirameki 3, is a geostationary communications satellite to be used for military communications by the Japanese military.


Soyuz 2.1a
Success
1 week, 2 days ago
Kosmos 2579 (Bars-M No. 6)
43/4 (43R) - Plesetsk Cosmodrome, Russian Federation

Note: Payload identity uncertain. Bars-M is the second incarnation of the Bars project, which was started in the mid 1990ies to develop a success…


Falcon 9
Success
1 week, 3 days ago
Starlink Group 10-13
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

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


Falcon 9
Success
1 week, 3 days ago
Starlink Group 9-9
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 20 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.