Indian Space Research Organisation (ISRO) Current Affairs - 2019

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ISRO announces Seven Mega Missions

The Indian Space Research Organisation (ISRO), recently announced its planned seven mega missions, including Chandrayaan-2 (India’s second lunar exploration mission) which will be conducted over a period of next 10 years. The ISRO has also prepared a roadmap for next 30 years.

Key Highlights

Out of seven missions Chandrayaan-2, will be flight ready by May 2019 and its spacecraft will be launched in July 2019. The rest six are classified as:

  1. Defined Missions – which include XPoSat (to study cosmic radiation in 2020) and Aditya-L1(to the Sun in 2021).
  2. Undefined Missions – which include missions which are still in planning stage namely Mangalyaan-2 (or Mars Orbiter Mission-2 in 2022), Lunar Polar Exploration (or Chandrayaan-3 in 2024), Venus mission (in 2023), Exoworlds (exploration outside the solar system in 2028).

About Aditya-L1

  • Or the ‘Sun Mission’ is scheduled for year 2021.
  • Significance: The payloads onboard Aditya-L1 will study solar corona. The Sun’s Corona has an influence on upper atmosphere which impacts climate change on earth. Thus it will play a key role in understanding and predicting climate change on Earth.
  • Orbit: It will be placed in a halo orbit around Sun-Earth Lagrangian point (L1), called ‘libration orbit’. It is about 1% of distance between Sun and Earth (about 1.5 million km from Earth) and where gravity of two celestial objects equalises. Placing it in such an orbit will allow spacecraft to circle along with earth and will result in constantly facing the Sun.

About Xposat

  • The X-ray Polarimeter Satellite (or Xposat), is ISRO’s dedicated mission to study polarization. It will be launched launch in year 2020.
  • It will be a five-year mission and will study cosmic radiation.
  • Payload: It will be carrying a payload named ‘polarimeter instrument in X-rays’ (POLIX) made by Raman Research Institute. POLIX will study degree and angle of polarisation of bright X-ray sources in energy range 5-30 keV.
  • Orbit: The spacecraft will be placed in a circular 500-700km orbit.

Month: Categories: Science & Technology

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ISRO successfully launches GSAT-17 Satellite

ISRO has successfully launched GSAT-17 communication Satellite onboard the Ariane-5 launch vehicle from the Guiana Space Center at French Guiana on June 28. GSAT-17 will be the ISRO’s third satellite that is launched within a span of three months.

Salient Highlights

The 3,477-kg GSAT 17 communication satellite will be placed in the geostationary orbit and will have a mission life of 15 years.

The satellite will be an addition to the current fleet of 17 Indian communication satellites that are already providing services from space.

Apart from providing communication services, the satellite will provide meteorological and satellite-based data to help rescue services which were earlier provided by geostationary satellites called Indian National Satellite System (INSAT).

GSAT-17 will provide continuity of services of operational satellites in C, extended C and S bands

Once launched, ISRO’s Master Control Facility at Hassan in Karnataka and Bhopal in Madhya Pradesh will take over and place the satellite in geostationary orbit. GSAT-17 was designed and assembled at the ISRO Satellite Centre in Bengaluru.

In addition, GSAT-17 will also launch communication satellite Hellas Sat 3-Inmarsat S EAN. Hellas Sat 3 will provide directly to home television and telecom services across Europe, West Asia and South Africa. Inmarsat is set to provide in-flight Internet facilities for European airlines.

Launch Vehicle

As ISRO is yet to have a launcher that is capable of lifting payloads above 2,000 kg. ISRO has just started testing the GSLV-Mark III for this purpose.

GSAT-17 will be the 21st Indian launch for the Arianespace. ISRO’s upcoming GSAT- 11 which will weigh more than 5,000 kg will also be launched by Arianespace.

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