Polaris Intelligence
Polaris
Intelligence
AboutNational IntelligenceOrganizationsProductsMissionsSpacecraftConstellationsForecastsLatest Information
Explore
© Polaris Intelligence 2026Admin

Spacecraft

Satellites, space stations, and deep space probes.

LabelOperatorStatusOrbitLaunch Date
Mentions
Discoverer 8Central Intelligence Agency (CIA)retiredLEO11/20/19590
Discoverer 7U.S. Defense Advanced Research Projects Agency (DARPA)retired-11/7/19590
Explorer 7NASA Goddard Space Flight CenterretiredLEO10/13/19590
AMS Luna-3-retired-10/4/19590
Vanguard IIINASA Goddard Space Flight CenterretiredMEO9/18/19590
Transit I-AU.S. Defense Advanced Research Projects Agency (DARPA)retired-9/17/19590
AMS Luna-2-retired-9/12/19590
Discoverer 6U.S. Defense Advanced Research Projects Agency (DARPA)retired-8/19/19590
Beacon (1959-F07)NASA Langley Research Centerretired-8/15/19590
Discoverer 5U.S. Defense Advanced Research Projects Agency (DARPA)retired-8/13/19590
Explorer VINASA Goddard Space Flight CenterretiredHEO8/7/19590
NASA S-1NASA Goddard Space Flight Centerretired-7/16/19590
Discoverer 4U.S. Defense Advanced Research Projects Agency (DARPA)retired-6/25/19590
Vanguard (1959-F03)NASA Goddard Space Flight Centerretired-6/22/19590
AMS (1959-F06)-retired-6/18/19590
Discoverer 3U.S. Defense Advanced Research Projects Agency (DARPA)retired-6/3/19590
Vanguard (1959-F01)NASAretired-4/14/19590
Vanguard 30-inch SphereNASA Langley Research Centerretired-4/14/19590
Discoverer 2U.S. Defense Advanced Research Projects Agency (DARPA)retired-4/13/19590
Pioneer IVU.S. Armyretired-3/3/19590
Discoverer 1U.S. Defense Advanced Research Projects Agency (DARPA)retired-2/28/19590
Vanguard IINASAretiredLEO2/17/19590
AMS Luna-1-retired-1/2/19590
SCOREU.S. Defense Advanced Research Projects Agency (DARPA)retiredLEO12/18/19580
Pioneer IIIU.S. Armyretired-12/6/19580
AMS (1958-F20)-retired-12/4/19580
Pioneer IINASAretired-11/8/19580
Beacon (1958-F18)NASA Langley Research Centerretired-10/23/19580
AMS (1958-F17)-retired-10/11/19580
Pioneer INASAretired-10/11/19580
Vanguard (1958-U01)U.S. Naval Research Labretired-9/26/19580
AMS (1958-F15)-retired-9/23/19580
NOTS 6-retired-8/28/19580
NOTS 5-retired-8/26/19580
NOTS 4-retired-8/25/19580
Explorer VU.S. Armyretired-8/24/19580
NOTS 3-retired-8/22/19580
Pioneer Lunar ProbeU.S. Defense Advanced Research Projects Agency (DARPA)retired-8/17/19580
NOTS 2-retired-8/12/19580
Explorer IVU.S. ArmyretiredLEO7/26/19580
NOTS 1-retired-7/25/19580
Vanguard (1958-F06)U.S. Naval Research Labretired-6/26/19580
Vanguard (1958-F05)U.S. Naval Research Labretired-5/28/19580
3-y Sovetskiy ISZ-retiredLEO5/15/19580
Vanguard (1958-F04)U.S. Naval Research Labretired-4/29/19580
ISZ-retired-4/27/19580
Explorer IIIU.S. ArmyretiredLEO3/26/19580
Vanguard IU.S. Naval Research LabretiredMEO3/17/19580
Explorer IIU.S. Armyretired-3/5/19580
Vanguard (1958-F01)U.S. Naval Research Labretired-2/5/19580
Discoverer 8
Central Intelligence Agency (CIA)
retiredLEOLaunched 11/20/1959
Previous
Page549of550
Next
Discoverer 7
U.S. Defense Advanced Research Projects Agency (DARPA)
retiredLaunched 11/7/1959
Explorer 7
NASA Goddard Space Flight Center
retiredLEOLaunched 10/13/1959
AMS Luna-3
-
retiredLaunched 10/4/1959
Vanguard III
NASA Goddard Space Flight Center
retiredMEOLaunched 9/18/1959
Transit I-A
U.S. Defense Advanced Research Projects Agency (DARPA)
retiredLaunched 9/17/1959
AMS Luna-2
-
retiredLaunched 9/12/1959
Discoverer 6
U.S. Defense Advanced Research Projects Agency (DARPA)
retiredLaunched 8/19/1959
Beacon (1959-F07)
NASA Langley Research Center
retiredLaunched 8/15/1959
Discoverer 5
U.S. Defense Advanced Research Projects Agency (DARPA)
retiredLaunched 8/13/1959
Explorer VI
NASA Goddard Space Flight Center
retiredHEOLaunched 8/7/1959
NASA S-1
NASA Goddard Space Flight Center
retiredLaunched 7/16/1959
Discoverer 4
U.S. Defense Advanced Research Projects Agency (DARPA)
retiredLaunched 6/25/1959
Vanguard (1959-F03)
NASA Goddard Space Flight Center
retiredLaunched 6/22/1959
AMS (1959-F06)
-
retiredLaunched 6/18/1959
Discoverer 3
U.S. Defense Advanced Research Projects Agency (DARPA)
retiredLaunched 6/3/1959
Vanguard (1959-F01)
NASA
retiredLaunched 4/14/1959
Vanguard 30-inch Sphere
NASA Langley Research Center
retiredLaunched 4/14/1959
Discoverer 2
U.S. Defense Advanced Research Projects Agency (DARPA)
retiredLaunched 4/13/1959
Pioneer IV
U.S. Army
retiredLaunched 3/3/1959
Discoverer 1
U.S. Defense Advanced Research Projects Agency (DARPA)
retiredLaunched 2/28/1959
Vanguard II
NASA
retiredLEOLaunched 2/17/1959
AMS Luna-1
-
retiredLaunched 1/2/1959
SCORE
U.S. Defense Advanced Research Projects Agency (DARPA)
retiredLEOLaunched 12/18/1958
Pioneer III
U.S. Army
retiredLaunched 12/6/1958
AMS (1958-F20)
-
retiredLaunched 12/4/1958
Pioneer II
NASA
retiredLaunched 11/8/1958
Beacon (1958-F18)
NASA Langley Research Center
retiredLaunched 10/23/1958
AMS (1958-F17)
-
retiredLaunched 10/11/1958
Pioneer I
NASA
retiredLaunched 10/11/1958
Vanguard (1958-U01)
U.S. Naval Research Lab
retiredLaunched 9/26/1958
AMS (1958-F15)
-
retiredLaunched 9/23/1958
NOTS 6
-
retiredLaunched 8/28/1958
NOTS 5
-
retiredLaunched 8/26/1958
NOTS 4
-
retiredLaunched 8/25/1958
Explorer V
U.S. Army
retiredLaunched 8/24/1958
NOTS 3
-
retiredLaunched 8/22/1958
Pioneer Lunar Probe
U.S. Defense Advanced Research Projects Agency (DARPA)
retiredLaunched 8/17/1958
NOTS 2
-
retiredLaunched 8/12/1958
Explorer IV
U.S. Army
retiredLEOLaunched 7/26/1958
NOTS 1
-
retiredLaunched 7/25/1958
Vanguard (1958-F06)
U.S. Naval Research Lab
retiredLaunched 6/26/1958
Vanguard (1958-F05)
U.S. Naval Research Lab
retiredLaunched 5/28/1958
3-y Sovetskiy ISZ
-
retiredLEOLaunched 5/15/1958
Vanguard (1958-F04)
U.S. Naval Research Lab
retiredLaunched 4/29/1958
ISZ
-
retiredLaunched 4/27/1958
Explorer III
U.S. Army
retiredLEOLaunched 3/26/1958
Vanguard I
U.S. Naval Research Lab
retiredMEOLaunched 3/17/1958
Explorer II
U.S. Army
retiredLaunched 3/5/1958
Vanguard (1958-F01)
U.S. Naval Research Lab
retiredLaunched 2/5/1958