RxPG News XML Feed for RxPG News   Add RxPG News Headlines to My Yahoo!  

Medical Research Health Special Topics World
 Latest Research 
 Clinical Trials
 Infectious Diseases
 Public Health
 Alternative Medicine
 Sports Medicine
 Medical News 
 Awards & Prizes
 Special Topics 
 Odd Medical News
  India Business
  India Culture
  India Diaspora
  India Education
  India Entertainment
  India Features
  India Lifestyle
  India Politics
  India Sci-Tech
  India Sports
  India Travel
 Reservation Issue
 Overseas Indian Doctor

Last Updated: May 17, 2007 - 8:46:52 AM
News Report
India Sci-Tech Channel

subscribe to India Sci-Tech newsletter
India Sci-Tech

   EMAIL   |   PRINT
Countdown for Insat-4B launch from French Guyana
Mar 9, 2007 - 11:27:14 AM
ISRO plans to launch Insat-4CR in mid-2007 as a replacement of the Insat-4C that was lost following the crash of the GSLV in July last year from the Satish Dhawan space centre at Sriharikota in Andhra Pradesh. It is set to carry 10-12 Ku-band transponders.

Article options
 Email to a Friend
 Printer friendly version
 India Sci-Tech channel RSS
 More India Sci-Tech news
[RxPG] Bangalore, March 9 - The countdown has begun for the launch of the telecommunications satellite Insat-4B, primarily meant for direct to home - television services, on Sunday from Kourou in French Guyana.

Final preparations for the launch of the satellite on board the Ariane-5 are complete.

G. Madhavan Nair, chairperson of the Indian Space Research Organisation -, satellite centre project director R.K. Rajangam and about 20 space scientists and technicians are camping at Kourou to witness the launch and coordinate the post-launch activities with their counterparts in India.

As the second satellite in the Insat-4 series, the 3,025 kg Insat-4B is carrying 12 high power Ku-band - transponders and 12 C-band - transponders to augment the capacity for DTH television services and expanding the Insat capacity for other communication and broadcasting services.

'The launch window for Ariane-5 ECA, carrying Insat-4B and another payload -, has been fixed between 3:55 a.m. and 4:28 a.m. IST Sunday,' a top ISRO official told IANS here.

About 30 minutes after the launch, the Indian satellite will be placed in an elliptical geo-synchronous transfer orbit -, with a perigee - of 250 km and an apogee - of 35,786 km.

The inclination of Insat-4B's GTO will be 4.5 degree with respect to the equatorial plane. The spacecraft will be manoeuvred into the 36,000 km high circular geo-synchronous orbit - from Monday by firing its liquid apogee motor - in phases.

'As the satellite nears the GSO, its dish shaped antenna reflectors and solar panels will be deployed and the satellite will be put in final 'three axis stabilised mode' to provide stability. In GSO, Insat-4B will be co-located with Insat-3A satellite at 93.5 degree east longitude,' the official said.

ISRO's Master Control Facility - at Hassan in Karnataka has been geared up to take control of the satellite after it is positioned in GTO. Besides conducting the in-orbit test of the communication payloads, the MCF will carry out regular operations and control the satellite during its 12-year life span.

'The over three-tonne satellite has been built at the ISRO satellite centre in Bangalore at a cost of Rs.2.15 billion. The launch cost is estimated to be Rs.2.25 billion. The satellite has also been insured for Rs.600 million,' the official disclosed.

The solar panels of the 50-ft satellite can generate about 5,800 watt. Three lithium ion batteries of 100 ampere-hour - capacity will generate power to maintain the satellite's key functions during eclipse periods.

The 24-year Indian National Satellite - system has revolutionised the communications system spanning telecom, meteorology, radio and television broadcasting and other vital services such as education, health, agriculture and business.

'The Insat system has become the largest domestic communication satellite system in the Asia-Pacific region, with nine spacecraft, including Kalpana-1, Gsat-2, Edusat and Insat-4A in service, with 175 transponders in C, extended C and Ku bands,' the official noted.

ISRO plans to launch Insat-4CR in mid-2007 as a replacement of the Insat-4C that was lost following the crash of the GSLV in July last year from the Satish Dhawan space centre at Sriharikota in Andhra Pradesh. It is set to carry 10-12 Ku-band transponders.

As the 175th launch of the European Space Agency's - Ariane programme and 31st launch of Ariane-5, the latest launch vehicle is also carrying Skynet-5A, a military secured communications satellite built by the Paris-based EADS Astrium.

Related India Sci-Tech News
Biggest cluster of dinosaur eggs found in central India
Nurture creative leaders for growth: Kalam
Committee to explore mass rapid transport system for Chandigarh
Hi-tech landmines baffle Jharkhand Police
Indian Army test fires Prithvi-1 missile
Indian BPOs successfully competing with global rivals: study
Army tests surface-to-surface Prithvi-1 missile
Chandigarh village gets e-governance
Yamuna a major problem: scientist
India's would-be space tourist gets tips from Kalam

Subscribe to India Sci-Tech Newsletter
E-mail Address:

For any corrections of factual information, to contact the editors or to send any medical news or health news press releases, use feedback form

Top of Page

© All rights reserved 2004 onwards by RxPG Medical Solutions Private Limited
Contact Us