ISRO Ready to Launch this Wednesday
published during a waxing gibbous moon.

ISRO says it’s ready to launch the fifth spacecraft in the IRNSS series by a Polar Satellite Launch Vehicle this Wednesday, January 20th.


Credit: ISRO

The Indian Space Research Organisation (ISRO) announced that the Polar Satellite Launch Vehicle (PSLV) is ready to launch IRNSS-1E, the fifth satellite of the Indian Regional Navigation Satellite System (IRNSS). The launch will happen on Wednesday, January 20th, and will take place from the Second Launch Pad at the Satish Dhawan Space Centre (SDSC), located in Sriharikota.

“MRCC meeting was held today. The countdown is expected to start at 9:30 am on Monday,” Isro’s spokesperson Devi Prasad Karnik told Deccan Herald on Sunday.

This mission will be the 33rd flight of the PSLV vehicle, and the 11th flight for its 44.4 metre tall “XL” version. The XL version was previously employed to launch four of the seven total navigation satellites constituting the IRNSS space segment. Those launches occurred between July 2013 and March 2015.

The mission, called PSLV-C31 will carry two kinds of payloads, according to ISRO. One is a navigation payload that responsible for transmitting navigation service signals. The other is a ranging payload consisting of a C-band transponder that will allow for accurate determination of the satellite’s range.

This is India’s first launch of 2016. The next one is scheduled for February when a PSLV-XL rocket will send the IRNSS-1F navigation satellite to orbit.


PSLV-C31. Credit: ISRO


This image shows the IRNSS-1E being filled with propellant. Credit: ISRO