Indian Space Research Organisation’s (Isro) workhorse Polar Satellite Launch Vehicle (PSLV) will carry a record 104 satellites in a single mission on 15 February from the space centre at Sriharikota in Andhra Pradesh.

The mission aims to put 714 kg Cartosat-2 series satellite for earth observation and 103 co-passenger satellites together weighing about 664 kg at lift-off into a 505 km polar Sun Synchronous Orbit (SSO) at 9.28 am from Sriharikota on Wednesday. The 48-hour countdown would begin on Monday.

“PSLV-C37/Cartosat-2 Series Satellite Mission is scheduled to be launched on February 15, 2017 at 9.28 hours IST from SDSC SHAR Sriharikota,” Isro said.

Isro said the co-passenger satellites comprise 101 nano- satellites, one each from Israel, Kazakhstan, the Netherlands, Switzerland, United Arab Emirates (UAE) and 96 from United States of America (USA), as well as two from India.

The two Indian nano-satellites are Isro’s INS-1A and INS-1B. INS-1A and INS-1B will carry a total of four different payloads from Space Applications Centre (SAC) and Laboratory for Electro Optics Systems (LEOS) of Isro for conducting various experiments, the space agency said.

Last year, Isro had launched a record 20 satellites at one go. The highest number of satellites launched in a single mission is 37, a record that Russia set in 2014. The US space agency, Nasa has launched 29.