ISRO aims for a World record, to launch 83 satellites on a single rocket

Indian space agency ISRO is aiming for a world record by putting into orbit 83 satellites -- two Indian and 81 foreign -- on a single rocket in early 2017, a top official of Antrix Corporation said. He said the company's order book stands at Rs 500 crore while negotiations are on for launch order for another Rs 500 crore."During the first quarter of 2017 we plan to launch a single rocket carrying 83 satellites. Most foreign satellites are nano satellites," Rakesh Sasibhushan, Chairman-cum-Managing Director of Antrix Corporation said. Antrix Corporation is the commercial arm of Indian Space Research Organisation (ISRO).He said all the 83 satellites will be put in a single orbit and hence there will not be any switching off and on of the rocket. The major challenge for the proposed mission is to hold the rocket in the same orbit till all the satellites are ejected. He said ISRO will use its Polar Satellite Launch Vehicle XL (PSLV-XL) rocket variant for the record launch. For ISRO, launch of multiple satellites at one go is not a new thing as it has done it several times in the past.According to Sasibhushan, the total payload/weight carried off into space by the PSLV-XL rocket will be around 1,600 kg. Citing non-disclosure agreements, Sasibhushan declined to name the clients whose satellites ISRO will put into orbit. He said some satellites belong to clients whose satellites ISRO put into orbit in the past.Meanwhile, ISRO is conducting high-altitude tests with its own cryogenic engine that is expected to power the heavier rocket Geosynchronous Satellite Launch Vehicle-Mk III (GSLV Mk III). The GSLV Mk III has a capacity to carry around four tonnes of load. The rocket is scheduled to be flown in January 2017.The GSLV Mk III rocket is expected to save precious foreign exchange for India as it pays to launch heavier satellites through foreign space agencies. In an interaction, ISRO Chairman A.S. Kiran Kumar said the agency is looking forward to develop four-tonne communication satellites that will give the same output as a six-tonner.IANSThis story is a part of a series on the world record launch of 104 satellites on a single mission by Isro. The stories in the series are: 

• Isro aims for a World record, to launch 83 satellites on a single rocket
• ISRO to launch world record 100 satellites in the PSLV-C37 mission scheduled for February
• Launching 103 satellites is not about setting a record, but to maximise capability, says ISRO chief
• Isro adds another passenger to the PSLV-C37 mission, 104 satellite launch rescheduled to mid February
• Isro plans to involve Indian industries to increase satellite launch capacity
• Isro’s mid-February PSLV-C37 launch of 104 satellites to have 88 satellites from Planet Labs
• Isro chief AS Kiran Kumar outlines the various uses of Indian satellites to students
• Isro’s PSLV-C37 launch scheduled for 15 February at 9:00 AM, here are the confirmed details
• Isro is going to break these previous satellite launch records with the PSLV-C37 mission
• Isro to recover half the cost of record breaking PSLV-C37 launch from foreign customers
• Isro PSLV-C37 record breaking mission run up: A history of rockets and launch vehicles in India
• Isro PSLV-C37 mission: The US private sector is threatened by cheap Indian spaceflight
• Isro has plans to go to Venus and visit Mars again in the future, along with 104 satellites launch on 15 Feb
• Isro’s record breaking PSLV-C37 mission: These are the 104 satellites on board