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Difficulty: HardScience, Emerging Technology, and Space Missions in News

Consider the following statements regarding the Earth Observation Satellite-08 (EOS-08) mission launched by the Indian Space Research Organisation (ISRO):

1. It was successfully placed into orbit using the third developmental flight of the Small Satellite Launch Vehicle (SSLV-D3).
2. It carries a Global Navigation Satellite System-Reflectometry (GNSS-R) payload designed for remote sensing applications such as ocean surface wind analysis and soil moisture estimation.
3. The satellite operates in a Geostationary Transfer Orbit (GTO) to provide continuous 24-hour meteorological imaging of the Indian subcontinent.

Which of the statements given above is/are correct?

  1. 1 and 2 onlyAnswer
  2. B
    2 and 3 only
  3. C
    1 and 3 only
  4. D
    1, 2 and 3

Answer

1 and 2 only
The option selecting '1 and 2 only' is correct because EOS-08 was indeed launched on SSLV-D3 and carries the GNSS-R payload. Statement 3 is false because EOS-08 is stationed in a Low Earth Orbit (LEO) at ~475 km altitude, not a Geostationary Transfer Orbit.

Step-by-Step Solution

1
Evaluate Statement 1 regarding launch vehicle
Statement 1 is correct. ISRO launched EOS-08 aboard the SSLV-D3 flight, completing the developmental phase of the SSLV program.
SSLV-D3 was the third developmental flight of the Small Satellite Launch Vehicle.
2
Evaluate Statement 2 regarding primary payloads
Statement 2 is correct. EOS-08 carries the GNSS-R payload for reflectometry-based ocean and soil remote sensing, alongside EOIR and UV dosimeter payloads.
GNSS-R processes reflected signals from navigation satellites to evaluate surface parameters.
3
Evaluate Statement 3 regarding orbital parameters
Statement 3 is incorrect. EOS-08 was deployed into a circular Low Earth Orbit (LEO) at an altitude of approximately 475 km, not Geostationary Transfer Orbit (GTO).
Earth observation satellites requiring high spatial resolution are placed in Low Earth Orbit (LEO).

Key Concept

EOS-08 Payload Configuration and SSLV Orbital Deployment Parameters
Estimated Time:1m 30s
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Topics

Science, Emerging Technology, and Space Missions in News

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