India’s Fourth Navigation Satellite IRNSS-1D launched successfully
Sriharikota / New Delhi: ISRO`s Polar Satellite Launch Vehicle, PSLV-C27, successfully launched the 1425 kg IRNSS-1D, the fourth satellite in the Indian Regional Navigation Satellite System (IRNSS) today evening (March 28, 2015) from Satish Dhawan Space Centre SHAR, Sriharikota. This is the twenty eighth consecutively successful mission of the PSLV. The `XL` configuration of PSLV was used for this mission. Previously, the same configuration of the vehicle was successfully used seven times.
After the PSLV-C27 lift-off at 1719 hrs IST from the Second Launch Pad with the ignition of the first stage, the subsequent important flight events, namely, strap-on ignitions and separations, first stage separation, second stage ignition, heat-shield separation, second stage separation, third stage ignition and separation, fourth stage ignition and satellite injection, took place as planned. After a flight of about 19 minutes 25 seconds, IRNSS-1D Satellite was injected to an elliptical orbit of 282.52 km X 20,644 km (very close to the intended orbit) and successfully separated from the PSLV fourth stage.
After injection, the solar panels of IRNSS-1D were deployed automatically. ISRO`s Master Control Facility (at Hassan, Karnataka) took over the control of the satellite. In the coming days, four orbit manoeuvres will be conducted from Master Control Facility to position the satellite in the Geosynchronous Orbit at 111.75 deg East longitude with 30.5 deg inclination. IRNSS-1D is the fourth of the seven satellites constituting the space segment of the Indian Regional Navigation Satellite System. IRNSS-1A, 1B and 1C, the first three satellites of the constellation, were successfully launched by PSLV on July 02, 2013, April 04, 2014 and October 16, 2014 respectively. All the three satellites are functioning satisfactorily from their designated orbital positions. IRNSS is an independent regional navigation satellite system designed to provide position information in the Indian region and 1500 km around the Indian mainland. IRNSS would provide two types of services, namely, Standard Positioning Services (SPS) - provided to all users - and Restricted Services (RS), provided to authorised users.
A number of ground stations responsible for the generation and transmission of navigation parameters, satellite control, satellite ranging and monitoring, etc., have been established in many locations across the country. In the coming months, the next satellite of this constellation, namely, IRNSS-1E, is scheduled to be launched by PSLV. The entire IRNSS constellation of seven satellites is planned to be completed by 2016.
President of India congratulates ISRO
The President of India, Shri Pranab Mukherjee has congratulated the Indian Space Research Organization (ISRO) for the successful launch of PSLV-C27. In a message to Shri A.S. Kiran Kumar, Chairman of ISRO, the President has said, “My heartiest congratulations to you and your entire team at the Indian Space Research Organisation (ISRO) for the successful launch of PSLV-C27, carrying the IRNSS-1D. I am very happy to know that this is the fourth in the series of seven satellites of the Indian Regional Navigation Satellite System. I understand the IRNSS-1D will provide navigation, tracking and mapping services which will take us closer to setting up our own navigation system. The nation is proud of this achievement which has demonstrated, yet again, India’s increasing space capabilities. Kindly convey my greetings to all members of your team of scientists, engineers and technologists involved in this great mission. I wish your future endeavours great success”.
PM congratulates scientists
The Prime Minister, Shri Narendra Modi, today congratulated India`s scientists on the launch of IRNSS-1D satellite. Launch of satellite IRNSS-1D is yet another manifestation of the exemplary efforts and utmost brilliance of our scientists. Congrats to them," the Prime Minister said.[/vc_column_text][/vc_column][/vc_row]