swap_horiz ASCA Alternatives
Looking for alternatives to ASCA? Compare the top Observatory options ranked by our AI scoring system.
ASCA
The Advanced Satellite for Cosmology and Astrophysics (ASCA), known as ASTRO-D before launch, was a Japanese X-ray astronomy satellite launched in February 1993. It was equipped with X-ray telescopes using CCD detectors, making it the first X-ray satellite to use CCD technology for imaging and spect...
apps Top ASCA Alternatives
The top alternative to ASCA in 2026 is Cassini-Huygens with a score of 9.8/10, followed by Gaia (9.7) and Kepler Space Telescope (9.6).
Cassini-Huygens
The Cassini-Huygens mission, operated by NASA and ESA, was a space-based observatory dedicated to studying Saturn and it...
Gaia
The Gaia observatory is a space-based mission operated by the European Space Agency. It meticulously surveys our galaxy,...
Kepler Space Telescope
The Kepler Space Telescope was a NASA observatory launched in 2009. It monitored over 150,000 stars for dips in brightne...
Parker Solar Probe
The Parker Solar Probe is a NASA observatory spacecraft investigating the Sun’s outer atmosphere, the corona. Launched i...
Planck
The Planck mission was a European Space Agency-operated observatory designed to study the Cosmic Microwave Background (C...
Neil Gehrels Swift Observatory
The Neil Gehrels Swift Observatory is a NASA spacecraft dedicated to studying high-energy astrophysical events. Launched...
XMM-Newton
The XMM-Newton observatory, operated by ESA, observes the universe primarily in X-rays. Its large telescope allows for d...
BeppoSAX
BeppoSAX was a European Space Agency observatory launched in 1996. This satellite primarily observed X-rays and gamma ra...
eROSITA
eROSITA is a German observatory utilizing a space-based x-ray telescope. Launched in 2019 as part of the Spektr-RG missi...
ROSAT
ROSAT, short for Röntgensatellit, was a German-led space observatory launched in 1990 for X-ray and extreme-ultraviolet...
Uhuru
Uhuru was a NASA-operated space observatory launched in 1970 as the first satellite dedicated specifically to X-ray astr...
Einstein Observatory
The Einstein Observatory, originally designated HEAO-2, was a pioneering NASA X-ray telescope launched into Earth orbit...
XRISM
XRISM (X-Ray Imaging and Spectroscopy Mission) is a space observatory jointly developed by JAXA and NASA, launched in Se...
Hinode
Hinode, which translates to "sunrise" in Japanese, is a solar observation satellite developed by the Japan Aerospace Exp...
RXTE
The Rossi X-ray Timing Explorer (RXTE) was a NASA satellite launched on December 30, 1995, to study time variability in...
IXPE
The Imaging X-ray Polarimetry Explorer (IXPE) is a NASA space observatory launched on December 9, 2021, designed to meas...
Suzaku
Suzaku was a Japanese space telescope developed for X-ray astronomy by the Japan Aerospace Exploration Agency in collabo...
INTEGRAL
INTEGRAL (International Gamma-Ray Astrophysics Laboratory) is a space telescope launched by the European Space Agency on...
EXOSAT
EXOSAT was a European Space Agency space observatory launched in 1983 to study X-ray sources beyond Earth. Operating unt...
Astro-H / Hitomi
ASTRO-H, later named Hitomi, was a Japanese X-ray astronomy satellite developed by JAXA with international partners, inc...
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