ISRO successfully conducts key rocket engine test for Chandrayaan-3
Bengaluru (PTI): The flight acceptance hot test of the CE-20 cryogenic engine that will power the cryogenic upper stage of the launch vehicle for the Chandrayaan-3 mission was successfully conducted, according to the Indian Space Research Organisation.
The hot test was carried out for a planned duration of 25 seconds at the High Altitude Test Facility of the ISRO Propulsion Complex at Mahendragiri in Tamil Nadu on February 24, the Bengaluru-headquartered national space agency said.
"All the propulsion parameters during the test were found satisfactory and closely matched with predictions," an ISRO statement said on Monday.
The cryogenic engine will be further integrated with the propellant tanks, stage structures and associated fluid lines to realise the fully-integrated flight cryogenic stage, ISRO said.
Earlier this year, Chandrayaan-3 lander successfully underwent EMI/EMC test at U R Rao Satellite Centre here.
EMI-EMC (Electro - Magnetic Interference/ Electro - Magnetic Compatibility) test is conducted for satellite missions to ensure the functionality of the satellite subsystems in the space environment and their compatibility with the expected electromagnetic levels, it was noted.
"This test is a major milestone in the realisation of the satellites," ISRO had said.
Chandrayaan-3 interplanetary mission has three major modules: the propulsion module, lander module, and a rover. The mission's complexity calls for establishing radio-frequency (RF) communication links between the modules.
During the Chandrayaan-3 lander EMI/EC test, launcher compatibility, antenna polarisation of all RF systems, standalone auto compatibility tests for orbital and powered descent mission phases, and lander and rover compatibility tests for post landing mission phase were ensured, according to ISRO.
Chandrayaan-3 is a follow-on mission to Chandrayaan-2 to demonstrate end-to-end capability in safe landing and roving on the lunar surface. ISRO plans to launch the mission in June.
It will be launched by Launch Vehicle Mark 3 (LVM3) from the Satish Dhawan Space Centre in Sriharikota (Andhra Pradesh).
The propulsion module will carry the lander and rover configuration till 100 km lunar orbit. The propulsion module has Spectro-polarimetry of Habitable Planet Earth (SHAPE) payload to study the spectral and polari metric measurements of Earth from the lunar orbit.
Let the Truth be known. If you read VB and like VB, please be a VB Supporter and Help us deliver the Truth to one and all.
Starc-inspired Delhi Capitals beat RR via super over
New Delhi, Apr 16 (PTI): A Mitchell Starc-inspired Delhi Capitals defeated Rajasthan Royals via the super over in their Indian Premier League match here on Wednesday.
Needing 12 runs in the super over, DC got them in four balls.
Asked to bat first, Delhi Capitals scored 188 for five.
In reply, Yashasvi Jaiswal (51 off 27 balls) and Nitish Rana (51 off 28 balls) scored brisk half-centuries to lead RR's charge before a brilliant final over by Starc took the game to the super over with the visitors finishing at 188 for four in 20 overs.
RR needed nine in the last over and Starc conceded only eight to stretch the game.
Earlier, the home team well served by Abhishek Porel's 37-ball 49 at the top of the order and even though KL Rahul consumed 32 balls for his 38, skipper Axar Patel (34 off 14 balls) and Tristan Stubbs (34 not out off 18) switched to top gear to help DC go past the 185-run mark.
Brief scores:
Delhi Capitals: 188/5 in 20 overs (Abhishek Porel 49, Tristan Stubbs 34 not out, Axar Patel 34, KL Rahul 38; Jofra Archer 2/32)..
Rajasthan Royals: 188/4 in 20 overs (Yashasvi Jaiswal 51, Nitish Rana 51).
