After Chandrayaan-2's lander Vikram lost communication with ISRO's Mission Control Centre in Bengaluru on Saturday, the ISRO Chairman Dr. K Sivan in his first interview since then has shared details of the Orbiter. He shared the unique feature of the orbiter's payload Dual-Frequency Radio Science (DFRS) which operated in two bands- namely L and S-band of frequency. He also added that this was unique to Chandrayaan 2 and did not exist is Chandrayaan 1. He also added that the orbiter will provide better pictures of the moon due to its high-resolution camera.
"The orbiter's payload has a Dual-Frequency Radio Science Experiment (DFRS) which is unique. It operates in the L-band and the S-band. Previous missions including Chandrayaan 1 had only a single band. Chandrayaan 2's orbiter will provide better resolution images as it has a higher resolution camera," said Sivan.
During the interview, he had declared the mission close to 100% successful. He stated that Chandrayaan 2 had two aims - science and technology demonstration. Talking about the science part, he said that the Orbiter has achieved the science part. He shared that the Orbiter will share new data about the moon.
"Through Chandrayaan 2 we achieved - science and technology demonstration. The science is mainly achieved by Orbiter and the technology demonstration was for the Lander and rover. The data will provide us new science. The orbiter has already completed the science part of the mission," he said.
Talking about the technology part which was demonstrated by the Lander, he explained the four phases of Vikram's landing. Sivan added that while the first three phases were executed as planned, he said that the final phase was not executed properly. Highlighting that Vikram went from 30 km to 2 km towards the lunar surface, he said that even the technology demonstration was 90-95% successful. Hence, he concluded Chandrayaan 2 was very close to 100% success.
Earlier on Saturday morning at 1:50 AM when Vikram was scheduled to land, ISRO's Deep Space Antenna lost communication with Chandrayaan-2's lander- Vikram as it descended towards the lunar surface. The lander had descended from 30 km to 2km smoothly. During the final smooth braking stage, it had lost communication with Mission Control. Vikram was aimed at soft-landing on the moon, making India the fourth country to do so.