EOS 02

EOS-02 (formerly known as Microsat-2A) was an Indian Earth observation microsatellite developed by the Indian Space Research Organisation as a test payload on the maiden launch of the Small Satellite Launch Vehicle (SSLV).^[1] EOS-02 was based on Microsat-TD. The objective behind EOS-02 was to realize and fly an experimental imaging satellite with short turnaround time to showcase launch on demand capability.^[2]

EOS-02

Names	EOS-02 / Microsat-2A
Mission type	Earth observation
Operator	ISRO
Website	https://www.isro.gov.in/
Mission duration	55 minutes
Orbits completed	<1
Spacecraft properties
Spacecraft	EOS-02
Manufacturer	ISRO
Launch mass	135 kg
Start of mission
Launch date	03:48 UTC, 7 August 2022
Rocket	Small Satellite Launch Vehicle
Launch site	Satish Dhawan Space Centre, First launch Pad (FLP)
Contractor	ISRO
End of mission
Decay date	7 August 2022 04:43 UTC
Orbital parameters
Regime	Low Earth (intended) Transatmospheric (achieved)
Periapsis altitude	76 km (47 mi)
Apoapsis altitude	356 (221 mi)
Inclination	37.2

It was intended to be used for cartographic applications at a cadastral level, urban and rural management, coastal land use and regulation, utilities mapping, development and various other GIS applications. The satellite carried two payloads: a mid-wavelength and a long-wavelength infared camera with a 6m resolution.^[3]

Launch

EOS-02 was launched on Small Satellite Launch Vehicle's maiden flight SSLV-D1 at 03:48 UTC / 09:18 IST on 7 August 2022,^[4][5] but due to the final VTM stage failure, the rocket entered a transatmospheric orbit of 356 km x 76 km (221 mi x 47 mi) instead of the planned circular 356 km (221 mi) circular orbit. As a result, both satellites onboard (EOS-02 and AzaadiSAT) were destroyed during reentry.^[6]