Earth
Observation Satellite – SCIENCE & TECHNOLOGY
News: ISRO
launched Earth Observation Satellite EOS-08.
What’s in the news?
SSLV-D3/EOS-08 Mission:
- Launch:
By Small Satellite Launch Vehicle (SSLV)-D3 from Satish
Dhawan Space Centre, Sriharikota.
- Orbit:
Circular Low Earth Orbit at 475 km altitude, inclination
of 37.4°, mission life of 1 year.
- SR-0 DEMOSAT:
Developed by Space Kidz India.
Objectives:
- Designing
and developing a microsatellite.
- Creating
payload instruments compatible with the
microsatellite bus.
- Incorporating
new technologies for future operational
satellites.
Payloads of EOS-08
Mission
- Electro Optical Infrared Payload
(EOIR): Images in Mid-Wave & Long Wave Infrared
bands for Disaster Monitoring, Environmental
Monitoring, etc.
- Global Navigation Satellite
System-Reflectometry (GNSS-R): Remote sensing for
measuring ocean winds, soil moisture, Himalayan
cryosphere, etc.
- SiC UV Dosimeter:
Monitors UV irradiance at Gaganyaan mission’s crew module viewport,
serves as a high-dose alarm sensor for astronaut safety.
Earth Observatory
Satellites (EOS):
- Definition:
Designed for Earth observation (EO) from orbit.
- EO: Collects
information about natural and artificial activities on Earth, including
physical, chemical, biological, and human systems.
- Applications:
Used in Early warning systems, environmental impact
monitoring, etc.
Small Satellite
Launch Vehicle (SSLV)-D3
- Flight:
Third developmental flight of SSLV.
- Capability:
Launching Mini, Micro, or Nano satellites (10 to 500 kg mass) into 500 km
planar orbit.
- Stages:
Three solid fuel-based stages and a final liquid-fuel based stage.
- Benefits:
Low cost, low turn-around time, flexibility in accommodating multiple
satellites, launch on demand feasibility, minimal launch infrastructure
requirements.
Source: https://www.thehindu.com/sci-tech/science/isro-earth-observation-satellite-sslv-d3-eos-08-launch-sriharikota-august-16-2024/article68531393.ece