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| Diviner Lunar Radiometer Experiment | |
|---|---|
| Name | Diviner Lunar Radiometer Experiment |
| Mission | Lunar Reconnaissance Orbiter |
| Operator | NASA |
| Spacecraft | Lunar Reconnaissance Orbiter |
| Launch | 2013 in spaceflight |
| Launch site | Kennedy Space Center |
| Orbit | Polar orbit |
| Instruments | Thermal radiometer |
Diviner Lunar Radiometer Experiment The Diviner Lunar Radiometer Experiment is a thermal infrared mapping instrument aboard the Lunar Reconnaissance Orbiter designed to measure surface temperatures across the Moon at high spatial and spectral resolution. It was developed by a team led by NASA Goddard Space Flight Center with contributions from the Jet Propulsion Laboratory, Malin Space Science Systems, and researchers affiliated with Brown University, California Institute of Technology, and NASA Ames Research Center. Diviner's data have informed studies by investigators associated with institutions such as Smithsonian Institution, Massachusetts Institute of Technology, Arizona State University, and University of Arizona.
Diviner was launched as part of a payload on the Lunar Reconnaissance Orbiter during the 2013 in spaceflight timeframe and entered a near-polar orbit similar to missions like Lunar Prospector and Kaguya (SELENE). The experiment maps diurnal and seasonal thermal behavior analogous to earlier thermal mapping efforts by Clementine, Apollo, and Lunar Orbiter missions but with greater spectral coverage and finer spatial sampling comparable to instruments on Mars Reconnaissance Orbiter and Venus Express. Diviner's results support exploration initiatives led by organizations such as European Space Agency, Roscosmos, Indian Space Research Organisation, and commercial partners including SpaceX and Blue Origin.
The instrument is a nine-channel thermal infrared radiometer inspired by heritage from instruments on missions like Mariner 9, Voyager, and Galileo. Its sensor suite includes narrow and broad spectral bands tuned to emissivity features comparable to laboratory studies at facilities such as Jet Propulsion Laboratory and NASA Ames Research Center. The optical design leverages techniques used by teams at Malin Space Science Systems and manufacturing approaches from contractors like Ball Aerospace. Electronics and detectors were developed drawing on expertise from Massachusetts Institute of Technology and instrumentation groups associated with California Institute of Technology and University of Arizona. Thermal stability, stray-light rejection, and calibration target design reflect lessons from Landsat and ASTER systems.
Diviner operations are coordinated by flight teams at NASA Goddard Space Flight Center in collaboration with the Lunar Reconnaissance Orbiter project management office, mission operations at NASA Ames Research Center, and data archives maintained by the Planetary Data System. Routine observations employ a cadence tuned to map the equatorial, mid-latitude, and polar regions in ways reminiscent of campaign planning used by Mars Global Surveyor and Messenger (spacecraft). Ground segment activities include command sequencing, telemetry processing, and outreach coordinated with institutions such as Smithsonian Institution and university partners like Brown University and Arizona State University. International cooperation and data sharing mirror practices established by European Space Agency missions and bilateral agreements similar to those between NASA and Roscosmos.
Diviner's primary objectives include mapping surface temperature extremes, identifying thermally anomalous regions, and constraining surface composition via thermal inertia and bolometric emissivity—goals also pursued by teams on Clementine, Apollo, and Kaguya (SELENE). Key findings include the discovery of ultra-cold traps within permanent shadowed regions near the lunar poles, complementing results from experiments like LCROSS and Lunar Reconnaissance Orbiter Camera. Diviner detected diurnal thermal behavior that improved models developed at NASA Goddard Space Flight Center and University of Arizona, refined regolith thermophysical parameters comparable to laboratory work at Caltech and MIT, and provided temperature constraints that influenced volatile stability models used by researchers at Brown University and Arizona State University. The instrument identified anomalous warm deposits associated with impact craters studied by teams from Smithsonian Institution and Jet Propulsion Laboratory, informing hypotheses about exposed bedrock, recent emplacement, or endogenic activity analogous to interpretations from Lunar Prospector and Apollo sample analyses.
Data processing pipelines for Diviner were developed at NASA Goddard Space Flight Center and integrate calibration approaches informed by heritage from Landsat, ASTER, and planetary radiometry teams at Jet Propulsion Laboratory and Caltech. Radiometric calibration uses onboard references and cross-calibration with thermal models produced by researchers at MIT and University of Arizona, while geometric calibration aligns products to the lunar control nets maintained by US Geological Survey and historical datasets from Apollo missions. The Planetary Data System hosts processed and raw products, enabling reanalysis by investigators at Smithsonian Institution, Brown University, Arizona State University, and international teams at European Space Agency and Indian Space Research Organisation. Data validation campaigns involved comparisons to in situ measurements from Apollo 15, Apollo 17, and laboratory analog studies conducted at NASA Ames Research Center.
Diviner's high-resolution thermal maps have guided site selection studies for human and robotic missions by agencies such as NASA, European Space Agency, Roscosmos, and Indian Space Research Organisation, and influenced commercial lunar plans by entities like SpaceX and Blue Origin. Its identification of cold traps and thermally anomalous sites informs prospecting strategies for volatiles relevant to concepts developed at NASA Marshall Space Flight Center and Johnson Space Center. Diviner data underpin scientific investigations published by researchers at Caltech, MIT, Brown University, University of Arizona, and Arizona State University, and serve as inputs to mission simulations used by planners at Jet Propulsion Laboratory and NASA Goddard Space Flight Center. The experiment's legacy continues in proposed instruments for missions such as Artemis program landers, follow-on polar orbiters, and commercial prospecting efforts coordinated with international partners like European Space Agency and Canadian Space Agency.
Category:Lunar Reconnaissance Orbiter instruments