Credit: NASA/Goddard/Arizona State University.
The Chandrayaan 2 Vikram lander was targeted for a highland smooth plain about 600 kilometers (3,700 miles) from the south pole; unfortunately, the Indian Space Research Organisation (ISRO) lost contact with their lander shortly before the scheduled touchdown (September 7 in India, September 6 in the United States). Despite the loss, getting that close to the surface was an amazing achievement.
The Lunar Reconnaissance Orbiter Camera team released the first mosaic (acquired September 17) of the site on September 26 and many people have downloaded the mosaic to search for signs of Vikram. Shanmuga Subramanian contacted the LRO project with a positive identification of debris. After receiving this tip, the LROC team confirmed the identification by comparing before and after images.
When the images for the first mosaic were acquired the impact point was poorly illuminated and thus not easily identifiable. Two subsequent image sequences were acquired on October 14 and 15, and November 11. The LROC team scoured the surrounding area in these new mosaics and found the impact site (70.8810°S, 22.7840°E, 834 m elevation) and associated debris field. The November mosaic had the best pixel scale (0.7 meters) and lighting conditions (72° incidence angle).
The debris first located by Shanmuga is about 750 meters northwest of the main crash site and was a single bright pixel identification in that first mosaic (1.3-meter pixels, 84° incidence angle). The November mosaic shows best the impact crater, ray, and extensive debris field. The three largest pieces of debris are each about 2×2 pixels and cast a one-pixel shadow.
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