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Zorluk: Çok zorScience, Emerging Technology, and Space Missions in News

Consider the following statements regarding India's X-ray Polarimeter Satellite (XPoSAT) mission:

1. It is India's first dedicated polarimetry mission designed to study the polarization of intense X-ray emissions from cosmic sources such as black holes and neutron stars.
2. The primary payload, POLIX (Polarimeter Instrument in X-rays), was developed by the Raman Research Institute (RRI) in collaboration with the UR Rao Satellite Centre.
3. The satellite was deployed into a Geostationary Transfer Orbit (GTO) using the Geosynchronous Satellite Launch Vehicle (GSLV-F14).

Which of the statements given above is/are correct?

  1. A
    1 and 3 only
  2. B
    2 and 3 only
  3. 1 and 2 onlyCevap
  4. D
    1, 2 and 3

Cevap

Statements 1 and 2 are correct, while Statement 3 is incorrect.
The combination selecting only Statements 1 and 2 is correct. XPoSAT is India's pioneer space observatory dedicated to studying the polarization of astronomical X-ray sources in the medium energy band (8–30 keV). Its primary instrument, POLIX, was built by the Raman Research Institute in partnership with ISRO's UR Rao Satellite Centre. Statement 3 is false because ISRO launched XPoSAT using the PSLV-C58 rocket into a circular Low Earth Orbit (LEO) of around 650 km, not a Geostationary Transfer Orbit via GSLV.

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1
Evaluate Statement 1 regarding mission purpose
Statement 1 is correct. XPoSAT is India's first scientific satellite dedicated to measuring X-ray polarization from celestial objects like pulsars, black hole binaries, and supernova remnants.
It places India as the second country after the USA (NASA's IXPE mission) to launch a dedicated orbital X-ray polarimetry observatory.
2
Evaluate Statement 2 regarding payload origin
Statement 2 is correct. The main scientific payload POLIX was developed by the Raman Research Institute (RRI), Bengaluru, supported by ISRO's UR Rao Satellite Centre (URSC).
POLIX measures polarization parameters in the 8–30 keV medium X-ray energy band.
3
Evaluate Statement 3 regarding orbital parameters and launch vehicle
Statement 3 is incorrect. XPoSAT was launched aboard the PSLV-C58 launch vehicle into a circular Low Earth Orbit (LEO) at an altitude of approximately 650 km with an inclination of 6 degrees, not into a GTO using GSLV.
Low Earth Orbit was chosen to minimize radiation background and ensure stable observations.

Anahtar Kavram

ISRO Space Missions, XPoSAT Payload Architecture, and Satellite Orbital Placement
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Science, Emerging Technology, and Space Missions in News

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