ISRO successfully launches 29 satellites into orbit using the PSLV-C45
It’s a great day for the country as India launches 29 satellites into space. The primary satellite that has been sent into the orbit is the EMISAT.
The Indian Space Research Organisation (ISRO) has successfully launched an EMISAT (Primary satellite) and 28 other international customer satellites into outer space. The launch took place from the Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota at the scheduled time of 09:30 Hrs IST on April 1st, 2019. This is the 47th mission of the Polar Satellite Launch Vehicle (PSLV), and is the 2nd launch of 2019. It was the first mission of the PSLV in which its PSLV-QL variant (4 XL Strap-on motors) was piloted.
The primary satellite, the EMISAT, which weighs around 436 kg, has been launched into a 749 km orbit around the Earth. The EMISAT will measure properties of the electromagnetic spectrum which consists of a range of wavelengths or frequencies over which electromagnetic radiation extends.
Also, the PSLV Fourth Orbit Stage (PS4) will act as an orbital platform and provide a small microgravity environment for research organizations and hosts three other payloads as well. The first payload in the process requires a type of Maritime satellite application, namely the Automatic Identification System (AIS), to enable transmission and send captured messages from ships. The second payload requires the Automatic Packet Repeating System (APRS) from AMSAT (Radio Amateur Satellite) helps radio operators in tracking and monitoring position data. The third payload, the Advanced Retarding Potential Analyzer for Ionosphere Studies (ARIS) from the Indian Institute of Space Science and Technology (IIST), is expected to help in the structural and compositional studies of the ionosphere.
Another 28 international customer satellites were also launched on the same day. Four countries whose nano-satellites will be placed in orbit under commercial arrangements are USA (20), Lithuania (2), Spain (1), and Switzerland (1). The PSLV is carrying 24 satellites from countries like the USA, Switzerland, Lithuania and Spain.
The 20 satellites from the USA (Flock-4A) are Earth observation satellites. The other four are Vessel Automatic Identification Systems. The Astrocast-2 of Switzerland will help in facilitating the Internet of Things, while the M6P of Lithuania is expected to provide a solid communication network as well as boost the Internet of Things and add custom radio communication. The second satellite, the BlueWalker1 will boost Satellite communication technology in the country. Spain's Aistechsat-3 will help also in remote asset management and aircraft tracking.