Why in the News?

Indian Space Research Organisation (ISRO) successfully launched the EOS-08 Earth Observation Satellite using the Small Satellite Launch Vehicle (SSLV)-D3.
- This marks the third and final development flight of the SSLV.

About EOS-08 Satellite:

	Details
Type	Earth Observation Satellite (EOS)
Design Platform	Built on ISRO’s Microsat/IMS-1 bus, known for its compact and efficient design.
Orbit	Operates in a Circular Low Earth Orbit (LEO) at an altitude of 475 km with an inclination of 37.4°.
Mission Life	1 year
Payloads	– Electro Optical Infrared Payload (EOIR): Captures images in MIR and LWIR bands for surveillance, disaster monitoring, and environmental assessments. – Global Navigation Satellite System-Reflectometry (GNSS-R) Payload: Monitors ocean surface winds, soil moisture, and inland water bodies using GNSS-R-based remote sensing. – SiC UV Dosimeter: Monitors UV irradiance, particularly for ISRO’s Gaganyaan Mission, ensuring safety against UV radiation.
Technological Innovations	– Integrated Avionics System: Combines Communication, Baseband, Storage, and Positioning (CBSP) functions into one system. – Embedded Technologies: Includes a Structural Panel Embedded with PCB, Embedded Battery, enhancing structural efficiency and power reliability. – Advanced Antennas: Micro-DGA (Dual Gimbal Antenna) and M-PAA (Phased Array Antenna) for precise control and enhanced signal transmission. – Flexible Solar Panels & Nano Star Sensor: Improves energy efficiency and satellite orientation in space.

SSLV is designed to launch Mini, Micro, or Nanosatellites (10 to 500 kg) into a 500 km planar orbit.
SSLV is a 3-stage launch vehicle with all solid propulsion stages and a liquid propulsion-based Velocity Trimming Module (VTM) as the terminal stage.
SSLV is designed for low cost and low turn-around time.
The vehicle offers flexibility in accommodating multiple satellites and is capable of launch-on-demand.
SSLV requires minimal launch infrastructure, making it a versatile option for satellite deployment.

[2018] With reference to India’s satellite launch vehicles, consider the following statements:

PSLVs launch the satellites useful for Earth resources monitoring whereas GSLVs are designed mainly to launch communication satellites.
Satellites launched by PSLV appear to remain permanently fixed in the same position in the sky, as viewed from a particular location on Earth.
GSLV Mk III is a four-stage launch l vehicle with the first and third stages l using solid rocket motors; and the second and fourth stages using liquid rocket engines.

Which of the statements given above is/are correct?

(a) 1 only

(b) 2 and 3

(d) 3 only