Advanced Coronal Observing System (ACOS)
The Mauna Loa Solar Observatory (MLSO) resides in a lava field on the northwest flank of Mauna Loa (elevation 3353 m) on the island of Hawai'i. This site provides some of the best solar observing conditions in the world. MLSO currently provides data for two observing programs: ACOS (Advanced Coronal Observing System) and PSPT. ACOS includes the following instruments: Mark-IV (K-coronameter), the Polarimeter for Inner Coronal Studies (PICS) (Hα: 656.3 nm, disc and limb), and the Chromospheric He I Imaging Photometer (CHIP) (Helium-I: 1083 nm, disc).
Precision Solar Photometric Telescope (PSPT)
Faced with mounting documentation that terrestrial climate is correlated with unexplainable changes in the Sun, a long-range plan and experiment has been developed to answer the question, "How and why does the Sun's irradiance change?". This program is the SunRISE/PSPT project. The PSPT produces seeing-limited full disk digital (2048x2048) images of the Sun in CaIIK (393.5nm+/-0.12 nm), and blue (409.4+/-0.11 nm) and red (607.1+/-0.22 nm) continuum, at ~0.1% photometric precision per pixel. Built at the National Solar Observatory by Jeff Kuhn, Haosheng Lin and Roy Coulter, the PSPT will provide the scientific community with high-resolution imaging of photospheric and chromospheric brightness inhomogeneities as well as photospheric faculae and chromospheric plages in active regions and in the network.
Southern HK Project: HAO–NOAO–SMARTS
STellar Astrophysics & Research on Exoplanets (STARE)
STARE uses precise time-series photometry to search for extrasolar giant planets transiting their parent stars. An important byproduct of this search will be an unusually complete survey of variable stars within its selected fields-of-view. STARE is a member of TrES, a network of three small-aperture telescopes searching the sky for transiting planets.
Sunspot Models (Home)
Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED)
The TIMED mission is studying the influences of the Sun and humans on the least explored and understood region of Earth's atmosphere - the Mesosphere and Lower Thermosphere/Ionosphere (MLTI).