swap_horiz ERBS 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

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

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

12

SPOT-1

SPOT-1 was a French Earth observation satellite launched by the CNES in 1986, marking the inaugural mission of the comme...

France 1980S Cnes Earth Observation

8.4 Great

13

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

14

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

15

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

16

OSCAR-1

OSCAR-1 was the first amateur-built satellite to reach orbit, launched on December 12, 1961 as a secondary payload aboar...

1960S Leo Amateur Radio Amsat

8.3 Great

17

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

18

Lacrosse 1

Lacrosse 1, designated USA-31, was the first operational synthetic aperture radar (SAR) reconnaissance satellite operate...

1980S Classified Leo Nro

8.2 Great

19

Rohini RS-1

Rohini RS-1 was India's first indigenously built satellite successfully placed in orbit, launched on July 18, 1980 from...

1980S Leo Technology Demo Isro

8.0 Great

20

SAMPEX

SAMPEX (Solar Anomalous and Magnetospheric Particle Explorer) was a NASA satellite launched in July 1992 as the first mi...

1990S Nasa Leo Solar Energetic Particles

7.8 Good