swap_horiz SAMPEX Alternatives

1

CORONA (KH-4)

CORONA was a highly classified United States military reconnaissance satellite program developed by the CIA and the Air...

1960S Reconnaissance Leo Cia Usaf

9.2 Excellent

2

SRTM

The Shuttle Radar Topography Mission (SRTM) was an international project led by the National Geospatial-Intelligence Age...

2000S Leo Dem Generation Nasa Usaf

9.2 Excellent

3

TRMM

The Tropical Rainfall Measuring Mission (TRMM) was a joint space mission between NASA and the Japan Aerospace Exploratio...

1990S Nasa Jaxa Precipitation Low Inclination

9.1 Excellent

4

Syncom 3

Syncom 3, launched by NASA in 1964, was the world's first geostationary satellite, positioned over the Pacific Ocean and...

Geostationary 1960S Nasa Communications

9.1 Excellent

5

IKONOS

IKONOS was a pioneering commercial Earth observation satellite launched in 1999 by Space Imaging (later GeoEye). As the...

High Resolution 1990S Polar Orbit Commercial Imagery

8.9 Great

6

KH-9 Hexagon

The KH-9 Hexagon was a series of large photoreconnaissance satellites operated by the US National Reconnaissance Office...

1970S Reconnaissance Leo Declassified

8.9 Great

7

IKONOS-2

IKONOS-2 was a commercial Earth observation satellite launched in 1999 by Space Imaging (later GeoEye). It holds the dis...

High Resolution Commercial 1990S Polar Orbit

8.9 Great

8

China Space Station (Tiangong)

China Space Station (Tiangong) is China's permanently crewed modular orbital station, with its core Tianhe module launch...

Modular 2020S Leo Crewed

8.8 Great

9

Seasat

Seasat was a NASA ocean-observing satellite launched in 1978, the first spacecraft dedicated to remote sensing of Earth'...

1970S Nasa Sar Polar Orbit

8.8 Great

10

NIMBUS-7

Nimbus-7 was an American meteorological research satellite launched by NASA in 1978 into a sun-synchronous orbit. As the...

Historic 1970S Nasa Earth Observation

8.8 Great

11

ATS-6

ATS-6, launched by NASA in 1974, was the world's first experimental direct-broadcast educational television satellite, p...

Experimental Geostationary 1970S Nasa

8.7 Great

12

MMS (Magnetospheric Multiscale)

The Magnetospheric Multiscale (MMS) mission is a NASA space physics observatory consisting of four identical satellites...

Nasa 2010S Magnetosphere Elliptical Orbit

8.7 Great

13

Van Allen Probes (RBSP)

The Van Allen Probes, originally named the Radiation Belt Storm Probes, were a pair of NASA spacecraft launched in 2012...

Nasa 2010S Elliptical Orbit Radiation Belt

8.6 Great

14

SEASTAR (OrbView-2)

OrbView-2, also known as SeaStar, was a NASA-sponsored Earth observation satellite launched in 1997 to monitor the globa...

1990S Polar Orbit Ocean Color Nasa Orbimage

8.5 Great

15

THEMIS (constellation)

THEMIS (Time History of Events and Macroscale Interactions during Substorms) is a NASA mission comprising five identical...

2000S Nasa Magnetosphere Leo Heo

8.4 Great

16

Orbiting Carbon Observatory-2

The Orbiting Carbon Observatory-2 (OCO-2) is a NASA satellite launched in 2014 to measure global atmospheric carbon diox...

Nasa 2010S CO2 Polar Orbit

8.4 Great

17

UARS

UARS (Upper Atmosphere Research Satellite) was a NASA satellite deployed from Space Shuttle Discovery during the STS-48...

1990S Nasa Atmosphere Leo

8.3 Great

18

SORCE

SORCE (Solar Radiation and Climate Experiment) was a NASA satellite launched on January 25, 2003 aboard a Pegasus XL roc...

Climate 2000S Nasa Leo

8.3 Great

19

GEDI (on ISS)

GEDI (Global Ecosystem Dynamics Investigation) is a NASA lidar instrument mounted on the exterior of the International S...

Nasa Lidar 2010S Iss Mounted

8.3 Great

20

ERBS

The Earth Radiation Budget Satellite (ERBS) was a NASA scientific spacecraft launched from the Space Shuttle Challenger...

Climate 1980S Nasa Leo

8.2 Great