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Alsat-1B

Mission type	Earth observation
Operator	Algerian Space Agency
COSPAR ID	2016-059C
SATCAT no.	41785
Spacecraft properties
Manufacturer	SSTL
Launch mass	103 kilograms (227 lb)
Start of mission
Launch date	26 September 2016, 03.44:00 (2016-09-26UTC03:44Z) UTC
Rocket	PSLV-C35
Launch site	Sriharikota
Orbital parameters
Regime	Sun synchronous
Periapsis altitude	700 kilometres (430 mi)
Apoapsis altitude	700 kilometres (430 mi)
Inclination	98 degrees
Period	98.5 min

Alsat-1B is an Algerian satellite operated by the Agence Spatiale Algerienne for agricultural and disaster monitoring. The contract for the mission was signed in July 2014. The satellite is based on the SSTL-100 bus. The satellite weighs 103 kilograms (227 lb) and carries an Earth imaging payload with 12-metre (39 ft) panchromatic imager and 24-metre (79 ft) multispectral cameras.

Construction

The satellite had high participation from ASAL, with eighteen engineers that worked on assembly, integration, and test. Additionally, at the University of Surrey, 18 students used the satellite as a part of their graduate degree research.

Launch

The satellite was launched on 26 September 2016 into a 670-kilometre (420 mi) altitude polar orbit by ISRO using the PSLV-C35 rocket. It was launched with several other satellites. The primary payload was SCATSAT 1, which was launched into a Polar Sun Synchronous Orbit. This was the first time PSLV launched satellites into different orbits. Algeria had three satellites that it will operate launch in that group, which were AlSat-1B, AlSat 2B, and AlSat-Nano. AlSat-2B also had imaging capabilities, but they are higher resolution than AlSat-1B. Of the eight satellites launched by PSLV, five of them were foreign. The remaining satellites were BlackSky Pathfinder 1, Pratham, PISat, and CanX 7.

Alsat-1B uses three body mounted solar panels for power generation, and a 15 Amp-hour Li-ion battery for power storage. It uses warm gas, butane powered resistojets for propulsion. The attitude control system uses Sun sensors and magnetometers.

References

1. ^ "Mission". Surrey Satellite Technology Limited. Archived from the original on 2016-10-31. Retrieved 2016-10-30.
2. ^ "Alsat-1B satellite mission". Surrey Satellite Technology Limited. 2014-07-10. Archived from the original on 2016-10-01. Retrieved 2016-09-27.
3. ^ "AlSat 1B". Gunter's Space Page. 2014-07-10. Retrieved 2016-09-27.
4. ^ Graham, William (25 September 2016). "ISRO PSLV conducts SCATSAT-1 launch". NASASpaceFlight.com. Retrieved 2016-09-27.
5. "PSLV-C35 launch: Double orbit satellite deployment boosts ISRO's commercial prospects". The Indian Express. 1976-09-27. Retrieved 2016-09-27.
6. "AlSat-1B". Spaceflight101.com. 26 September 2016. Retrieved 2016-10-30.

v t e Agence Spatiale Algerienne (ASAL)
Satellites	Student Alsat-1N Communication Alcomsat-1 Earth observation Alsat-1 Alsat-1B Alsat-2A Alsat-2B
Launch centers	CIEES (abandoned)
Institutions	(CTS) (CAS) (CDS) (CEST)
Astronomy	Center of Research in Astronomy, Astrophysics, and Geophysics

Related articles

Algeria national space programs

• Spacecraft launched in 2016
• Earth imaging satellites
• Satellites of Algeria
• Spacecraft launched by PSLV rockets