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ISRO Ka naya Mission kaun sa launch hua (ISRO's SSLV D3/EOS-08 MISSION)

 ISRO's SSLV D3/ EOS-08 MISSION

ISRO LAUNCHED SSLV D3 CARRYING EOS-08

Here are important details regarding the Indian Space Research Organisation's (ISRO's) latest mission launch of Small Satellite Launch Vehicle - D3 carrying EOS-08 with itself on 16 August 2024. It was remarkable footprint in Indian Space History. 11 Important questions that can be asked in various competitive exams from this current event are also mentioned after the post. Enjoy Reading.

1. Overview of the Mission 

Satellite Name: EOS-08 (Earth Observation Satellite).

Launch Vehicle: SSLV-D3 (Small Satellite Launch Vehicle).

Launch Date: 16 August 2024

Launch Site: Satish Dhawan Space Centre, Shriharikota.

Mission Objective: 

  - Develop a microsatellite.

  - Create compatible payloads for microsatellite.

  - Use new technologies for future satellites.

ISRO'S-LATEST-SSLV-D3-EOS-08-MISSION-IMAGE
ISRO's SSLV LAUNCH IMAGE (Image Credit: PIB)


2. Satellite Payloads

Electro Optical Infrared Payload (EOIR):

  - Captures images in infrared bands (Mid-Wave and Long-Wave IR).

  - Applications: Satellite surveillance, disaster monitoring, environmental studies, fire and volcano detection.

Global Navigation Satellite System Reflectometry (GNSS-R) Payload:

  - Measures ocean winds, soil moisture, flood detection, and inland water body detection.

SiC UV Dosimeter:

  - Monitors UV radiation for Gaganyaan mission.

  - Functions as a radiation alarm for gamma rays.


3. Satellite Features

Orbit: 

  - Low Earth Orbit (LEO) at 475 km altitude.

  - Inclination: 37.4°.

  - Mission duration: 1 year.

Weight: 

175.5 kg.

Power Generation: 

420 W.


4. Advanced Satellite Technology

Integrated Avionics System (CBSP):

  - Combines communication, storage, positioning in one unit.

  - Supports up to 400 Gb of data storage.

  Key Components:

  - Micro-Dual Gimbal Antenna (Micro-DGA).

  - Phased Array Antenna (M-PAA).

  - Flexible solar panel for better power generation.

Miniaturized Antenna Mechanism: 

  - Antenna rotation speed of 6° per second with ±1° accuracy.

  

5. Innovations in Satellite Design

New Materials and Technologies:

  - Graphite sheet for heat management (thermal conductivity of 350 W/mK).

  - Hinge-based fixture reduces assembly and testing time.

  Power and Communication:

  - X-Band data transmission for faster communication.

  - Improved battery system for efficient power regulation.


6. Indigenization Efforts

Local Development: Solar cell production in India.

Advanced Sensors: Nano-Star Sensor for satellite positioning.

Thermal Management Materials: High-tech materials like Germanium Black Kapton and Si-Al Alloy for better thermal control.


7. Auto-Launch Pad Initialization

Innovative Launch Feature: The satellite uses automatic launch pad settings, improving mission management efficiency.

In summary, the EOS-08 mission is a significant advancement in satellite technology, with innovations in payloads, power systems, and communication mechanisms, all aimed at improving future satellite missions.

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Here are the 10 most important MCQs based on the EOS-08 mission that could be asked in competitive exams:

1. What is the name of the satellite launched by ISRO in the EOS-08 mission?

- a) EOS-07  

- b) EOS-08  

- c) RISAT-2  

- d) Gaganyaan  

Answer: b) EOS-08


2. On which date ISRO's SSLV D3 / EOS-08 was launched?

- a) 14 August 2024 

- b) 15 August 2024  

- c) 16 August 2024  

- d) 17 August 2024  

Answer: b) 16 August 2024


3. Which launch vehicle was used to deploy EOS-08?

- a) PSLV-C51  

- b) GSLV-Mk III  

- c) SSLV-D3  

- d) SSLV-D1  

Answer: c) SSLV-D3


4. Where was the EOS-08 satellite launched from?

- a) Chandipur  

- b) Sriharikota  

- c) Thumba  

- d) Vikram Sarabhai Space Centre  

Answer: b) Sriharikota


5. What is the primary objective of the EOS-08 mission?

- a) Mars exploration  

- b) Microsatellite development  

- c) Space debris analysis  

- d) Weather forecasting  

Answer: b) Microsatellite development


6. How many payloads does EOS-08 carry?

- a) 2  

- b) 3  

- c) 4  

- d) 1  

Answer: b) 3


7. Which of the following is NOT a payload on the EOS-08 satellite?

- a) EOIR  

- b) GNSS-R  

- c) SiC UV Dosimeter  

- d) SAR  

Answer: d) SAR


8. The EOIR payload on EOS-08 is used to capture images in which bands?

- a) Microwave and X-ray  

- b) Visible and Near-Infrared  

- c) Mid-Wave and Long-Wave Infrared  

- d) Ultraviolet and Gamma  

Answer: c) Mid-Wave and Long-Wave Infrared


9. What is the mission life of the EOS-08 satellite?

- a) 5 years  

- b) 3 years  

- c) 2 years  

- d) 1 year  

Answer: d) 1 year


10. The GNSS-R payload on EOS-08 helps in assessing which of the following?

- a) Soil moisture  

- b) Earthquake predictions  

- c) Space radiation  

- d) Cosmic dust  

Answer: a) Soil moisture


11. At what altitude is the EOS-08 satellite positioned in its orbit?

- a) 1000 km  

- b) 475 km  

- c) 800 km  

- d) 300 km  

Answer: b) 475 km

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