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ISRO Chandrayaan-2 Highlights & Updates

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  • #31
    Nasa's LRO Camera Spots Chandrayaan-2 Lander Vikram Debris On Moon Surface


    Analysis of the images taken by NASA's Lunar Reconnaissance Orbiter (LRO) Camera, released early on December 3 (IST), for the first time, has indicated the debris of Vikram, the Chandrayaan-2 lander that hard-landed on Moon on September 7. In a statement, NASA said: "Vikram lander found." An image of the Moon with blue and green dots show the impact point of Vikram and an associated debris field.


    More for "Green dots indicate spacecraft debris (confirmed or likely). Blue dots locate disturbed soil, likely were small bits of the spacecraft churned up the regolith.
    While the NASA statement does not elaborate on Subramanian's identity, it says he had contacted the LRO project with an identification of debris. "...After receiving this tip, the LROC team confirmed the identification by comparing before and after images," the statement reads. The LRO Camera team released the first mosaic (acquired September 17) of the site on September 26 and many people, including Subramanian, have downloaded the mosaic to search for signs of Vikram. 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 meter) and lighting conditions (72° incidence angle)," the statement added.
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    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 2x2 pixels and cast a one-pixel shadow.
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    • #32
      Isro launch RISAT-2BR1 Spy Satellite On December 11

      The Indian Space Research Organisation will launch the RISAT-2BR1 satellite from the Satish Dhawan Space Centre in Sriharikota on December 11
      The Indian Space Research Organisation is gearing up to launch an earth observation satellite, days after launching a similar CARTOSAT-3. Isro will launch the RISAT-2BR1 satellite from the Satish Dhawan Space Centre in Sriharikota on December 11.

      The RISAT-2BR1 is the second satellite in the RISAT-2B series and along with the CARTOSAT-3 is part of a widely whispered about not formally acknowledged group of 'spy' satellites that will boost the Indian military's carry out Earth surveillance from the space.

      The first satellite in the RISAT-2B series was launched earlier this year to replace the aging RISAT-2, which went out of commission. The RISAT-2BR1 will launch on December 11 and will be followed by another satellite of the RISAT-2B series later month. A fourth RISAT-2B type satellite will be launched later to complete a quartet of spy satellites with advance earth imaging abilities.

      The RISAT-2BR1 will be launched on December 11 onboard the 'workhorse' of the Indian Space Research Organisation -- the Polar Satellite Launch Vehicle (PSLV) rocket. According to Isro, this will be the 50th mission of the PSLV.

      Along with the 628-kilo RISAT-2BR1, the PSLV rocket will also carry nine commercial satellites -- six from the US and one each from Israel, Italy, and Japan. The owners of these satellites -- countries or companies -- pay Isro to put them into orbit.

      The PSLV RISAT-2BR1 launch comes days after the Isro successfully launched the CARTOSAT-3 earth imaging satellite. It is also the second launch since the launch of the Chandrayaan-2 mission, which placed an orbiter around the Moon and unsuccessfully attempted to land a rover on the lunar surface.

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