PSLV C45 Successfully Injects EMISAT and 28 Other Satellites

IndraStra Global

PSLV C45 Successfully Injects EMISAT and 28 Other Satellites

By IndraStra Global News Team

Image Attribute: EMISAT getting injected into a 748 km sun-synchronous polar orbit, 17 minutes and 12 seconds after liftoff. / Source: ISRO/DD News YouTube Screengrab

Image Attribute: EMISAT getting injected into a 748 km sun-synchronous polar orbit, 17 minutes and 12 seconds after liftoff. / Source: ISRO/DD News YouTube Screengrab

On April 1, 2019, the Indian Space Research Organisation (ISRO)'s Polar Satellite Launch Vehicle (PSLV), in its 47th mission (PSLV-C45) successfully launched a military reconnaissance satellite (developed by India's Defence Research and Development Organisation - DRDO) to the orbit along with 28 other foreign satellites from Satish Dhawan Space Centre - Sriharikota Range (SDSC-SHAR). The launch comes six days after India test-fired an anti-satellite (ASAT) missile in the Mission Shakti operation.

Image Attribute: EMISAT based on ISRO’s Indian Mini Satellite-2 (IMS-2) bus platform. The satellite is intended for electromagnetic spectrum measurement. / Source: ISRO

Image Attribute: EMISAT based on ISRO’s Indian Mini Satellite-2 (IMS-2) bus platform inherited from SARAL - a cooperative altimetry technology mission of ISRO and CNES (Centre national d'études spatiales - French space agency). The satellite is intended for electromagnetic spectrum measurement. / Source: ISRO

PSLV-C45 lifted off at 9:27 (IST) from the Second Launch Pad and injected 436-kg EMISAT into a 748 km sun-synchronous polar orbit, 17 minutes and 12 seconds after liftoff. After separation, the two solar arrays of EMISAT were deployed automatically and the ISRO Telemetry Tracking and Command Network at Bengaluru assumed control of the satellite. In the coming days, the satellite will be brought to its final operational configuration. The last customer satellite was placed into its designated orbit 1 hour and 55 minutes after lift-off.

About 3 hours after lift-off, the fourth stage (PS4) of the vehicle was moved to a lower circular orbit of 485 km after two restarts to establish it as an orbital platform for carrying out experiments with its three payloads.

The PS4 orbital platform will provide a microgravity environment for research organizations and academic institutes to perform experiments.  In this mission, the PS4 hosts three payloads, namely, Automatic Identification System (AIS) from ISRO, Automatic Packet Repeating System (APRS) from AMSAT (Radio Amateur Satellite Corporation), India and Advanced Retarding Potential Analyzer for Ionospheric Studies (ARIS) from Indian Institute of Space Science and Technology (IIST).

PSLV C45 Mission Details

Source: ISRO

The 28 international customer satellites, together weighing about 220 kg, are from four countries, namely, Lithuania (2), Spain (1), Switzerland (1) and USA (24). These foreign satellites were launched as part of commercial arrangements.