PSLV-C35

Model of the PSLV rocket
Names	Scatsat-1 mission
Mission type	Deployment of eight satellites in two different orbits.
Operator	ISRO
Website	ISRO website
Mission duration	8,133 seconds
Spacecraft properties
Spacecraft	Polar Satellite Launch Vehicle
Spacecraft type	Expendable launch vehicle
Manufacturer	ISRO
Launch mass	320,000 kilograms (710,000 lb)
Payload mass	671.25 kilograms (1,479.9 lb)
Dimensions	44.4 metres (146 ft) (overall height)
Start of mission
Launch date	03:42:00, September 26, 2016 (2016-09-26T03:42:00) (UTC)
Rocket	Polar Satellite Launch Vehicle
Launch site	Sriharikota Launching Range
Contractor	ISRO
End of mission
Disposal	Not known
Deactivated	September 26, 2016 (2016-09-26)
Orbital parameters
Reference system	Polar orbit and Sun-synchronous orbit
Payload
India ScatSat-1, PISat & Pratham, Algeria Alsat-1B, Alsat-2B & Alsat-1N, Canada CanX-7, United States Pathfinder-1
Mass	671.25 kilograms (1,479.9 lb)
Polar Satellite Launch Vehicle missions ← PSLV-C34 PSLV-C36 →

PSLV-C35 was the successful mission of the Polar Satellite Launch Vehicle program which set eight satellites in space. It was launched on 26 September 2016 by Indian Space Research Organisation (ISRO) from the Satish Dhawan Space Centre at Sriharikota.

Launch

PSLV-C35 was launched at 03:42 hours Coordinated Universal Time (09:12 hours Indian Standard Time) on 26 September 2016 from the first launch pad of Satish Dhawan Space Centre at Sriharikota in the Indian state of Andhra Pradesh.^[1][2]

Mission highlights

PSLV-C35 was the 37th launch of the PSLV program. It was also the 102nd overall launch by Indian Space Research Organisation. PSLV-C35 was the first spaceflight by ISRO to place satellites in two different orbits with a single rocket. It carried and injected eight satellites built by India, Algeria, Canada and United States.^[1][3][4]

Mission parameters

• Mass:
  • Total liftoff weight: 320,000 kilograms (710,000 lb)
  • Payload weight: 671.25 kilograms (1,479.9 lb)
• Overall height: 44.4 metres (145.7 ft)
• Propellant:
  • First stage: Solid HTPB based (138.2 + 6 x 8.9 tonnes)
  • Second stage: Liquid UH 25 + N₂O₄ (42 tonnes)
  • Third stage: Solid HTPB based (7.6 tonnes)
  • Fourth stage: Liquid MMH + MON-3 (2.5 tonnes)
• Engine:
  • First stage: Core (PS 1) + 6 strap-on PSOM
  • Second stage: Vikas
  • Third stage: PS 3
  • Fourth stage: PS 4
• Thrust:
  • First stage: 4,762 + 645 x 6 kN
  • Second stage: 800 kN
  • Third stage: 246 kN
  • Fourth stage: 7.3 x 2 kN
• Maximum altitude: 739.314 kilometres (459 mi)
• Maximum velocity:7,527.63 metres per second (24,697 ft/s) (recorded at time of PS-4 engine restart 2)
• Duration: 8,133 seconds

^[3]

Payload

PSLV-C35 carried and deployed eight satellites in two different orbits in a single mission (Polar and Sun-synchronous orbit). This was the first time India had placed satellites in two orbits in a single mission.^[5] The vehicle carried three satellites from India (ScatSat-1, PISat & Pratham), three satellites from Algeria (Alsat-1B, 2B & 1N), one each from Canada (NLS-19) and the United States (Pathfinder-1).^[1][3][6]

Country	Owner	Name	Nos	Mass	Type	Objective
India	ISRO	ScatSat-1	1	377 kg	Miniaturized satellite	Weather forecasting, cyclone prediction and tracking.
	IIT Bombay	Pratham	1	10 kg	Nanosatellite	Research satellite.
	PES Institute of Technology	PISat	1	5.25 kg		Remote sensing.[3][6]
Algeria	Agence Spatiale Algerienne	Alsat-1B	1	103 kg	Earth observation satellite	Agricultural and disaster monitoring.
		Alsat-2B	1	117 kg		Monitoring natural resources.
		Alsat-1N	1	7 kg	Cubesat	Technology demonstration satellite.[3][6]
Canada	UTIAS	CanX-7	1	8 kg
USA	Spaceflight Industries	Pathfinder-1	1	44 kg	Earth observation, micro-satellite	Earth imaging.[3][6]