swap_horiz KH-9 Hexagon Alternatives
Looking for alternatives to KH-9 Hexagon? Compare the top Satellite options ranked by our AI scoring system.
KH-9 Hexagon
The KH-9 Hexagon was a series of large photoreconnaissance satellites operated by the US National Reconnaissance Office (NRO) from 1971 to 1986. Often referred to as "Big Bird," it combined high-resolution mapping and surveillance photography into a single platform. The satellite utilized a film-ret...
apps Top KH-9 Hexagon Alternatives
The top alternative to KH-9 Hexagon in 2026 is CORONA (KH-4) with a score of 9.2/10, followed by SRTM (9.2) and China Space Station (Tiangong) (8.8).
CORONA (KH-4)
CORONA was a highly classified United States military reconnaissance satellite program developed by the CIA and the Air...
SRTM
The Shuttle Radar Topography Mission (SRTM) was an international project led by the National Geospatial-Intelligence Age...
China Space Station (Tiangong)
China Space Station (Tiangong) is China's permanently crewed modular orbital station, with its core Tianhe module launch...
Seasat
Seasat was a NASA ocean-observing satellite launched in 1978, the first spacecraft dedicated to remote sensing of Earth'...
NIMBUS-7
Nimbus-7 was an American meteorological research satellite launched by NASA in 1978 into a sun-synchronous orbit. As the...
ATS-6
ATS-6, launched by NASA in 1974, was the world's first experimental direct-broadcast educational television satellite, p...
UARS
UARS (Upper Atmosphere Research Satellite) was a NASA satellite deployed from Space Shuttle Discovery during the STS-48...
SORCE
SORCE (Solar Radiation and Climate Experiment) was a NASA satellite launched on January 25, 2003 aboard a Pegasus XL roc...
OSCAR-1
OSCAR-1 was the first amateur-built satellite to reach orbit, launched on December 12, 1961 as a secondary payload aboar...
ERBS
The Earth Radiation Budget Satellite (ERBS) was a NASA scientific spacecraft launched from the Space Shuttle Challenger...
Lacrosse 1
Lacrosse 1, designated USA-31, was the first operational synthetic aperture radar (SAR) reconnaissance satellite operate...
COSMIC-2 (constellation)
COSMIC-2 is a constellation of six satellites developed jointly by NOAA and Taiwan's NSPO, launched on June 25, 2019 abo...
AO-7 (OSCAR-7)
AO-7 (OSCAR-7) is an amateur radio satellite constructed by volunteers and launched into low Earth orbit by the Radio Am...
Rohini RS-1
Rohini RS-1 was India's first indigenously built satellite successfully placed in orbit, launched on July 18, 1980 from...
SAMPEX
SAMPEX (Solar Anomalous and Magnetospheric Particle Explorer) was a NASA satellite launched in July 1992 as the first mi...
SO-50 (SaudiSat 1C)
SO-50, also known as SaudiSat 1C, is an amateur radio satellite launched by Saudi Arabia in 2002. It orbits the Earth in...
Helios-2B
Helios-2B is a French military optical reconnaissance satellite launched into a Sun-synchronous polar orbit in 2009. It...
SAR-Lupe 1
SAR-Lupe 1 is a reconnaissance satellite operated by the German Armed Forces and launched in 2006. It was the first of f...
Helios-1A
Helios 1A is a French military optical reconnaissance satellite launched into a sun-synchronous low Earth orbit in July...
AO-91 (Fox-1B)
AO-91, also known as Fox-1B, is an amateur radio CubeSat launched by AMSAT in November 2017. It carries a U/V FM voice t...
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