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The Ultraviolet (UV)/Visible and Near Infrared down-looking spectrometers monitored the flash of the impact, the ejecta plume and ultimately the reflectance off the floor of Cabeus. The figure above shows the total integrated radiance (integrated across all wavelengths measured by each spectrometer) as a function of time relative to the approximate impact time. The notional flash and ejecta plume periods are shown.
Credit: NASA
Above is a time series of images collected with the mid-infrared camera (MIR2). The first image (left to right) shows the Cabeus crater before impact while the next image shows this same scene with enhanced contrast stretching and no sign of impact is apparent yet. These frames are followed by images of Cabeus approximately zero, two, four, and six seconds after Centaur impact. The thermal signature of the impact is detected clearly by the MIR2 camera. The arrows point to the thermal signature of the impact as detected by the LCROSS spacecraft. Images are presented in false color and are stretched to enhance contrast. The image resolution ranges from ~1020 meters / pixel at time T=0 to ~990 meters / pixel at time T = +6 seconds.
Credit: NASA
Another time series of images was taken with the mid-infrared camera (MIR1). The first image (left to right) shows the Cabeus crater before impact, followed by images of Cabeus approximately zero, two, and four seconds after Centaur impact. The thermal signature of the impact is detected clearly by the MIR1 camera. The arrows point to the thermal signature of the impact as detected by the LCROSS spacecraft. Images are presented in grayscale (white = hot, black = cold) and are stretched to enhance contrast. The image resolution ranges from ~1020 meters / pixel at time T=0 to ~990 meters / pixel at time T = +4 seconds.
Credit: NASA
Posted by: Soderman/NLSI Staff
Source: NASA
http://www.nasa.gov/mission_pages/LCROSS/main/LCROSS_impact_more_images.html
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Author/Curator: Greg Schmidt NASA Official: David Morrison Last Updated: November 23, 2009 + Contact NASA + Site Map |
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