Small Satellite Launch Vehicle
|Country of origin||India|
|Cost per launch||₹30 crore (US$4.2 million) |
|Payload to 500x500 km orbit, i=45° ||500 kg (1,100 lb)|
|Payload to SSO||300 kilograms (660 lb) |
|Launch sites||Small Satellite Launch Complex (SSLC)|
|First flight||Early 2020 (planned)|
|First stage – SS1|
|Second stage – SS2|
|Third stage – SS3|
|Fourth stage – Velocity Trimming Module|
The Small Satellite Launch Vehicle (or SSLV) is a launch vehicle being developed by the Indian Space Research Organisation (ISRO) with payload capacity to deliver 500 kg to Low Earth orbit (500 km) or 300 kg to Sun synchronous orbit (500 km) for launching small satellites, with the capability to support multiple orbital drop-offs. On 21 December 2018, the Vikram Sarabhai Space Centre (VSSC) at Thumba completed the design for the vehicle.
The maiden flight is expected in early 2020, and all flights will launch from a dedicated launch pad in Sriharikota called Small Satellite Launch Complex (SSLC). A new spaceport, under development, near Kulasekarapattinam in Tamil Nadu (as of December 2019) will handle SSLV launches when complete.
The SSLV was developed with the aim of launching small satellites commercially at drastically reduced price and higher launch rate as compared to PSLV. The manufacturing cost of the SSLV is expected to be ₹30 crore (US$4.2 million).
The projected high launch rate relies on largely autonomous launch operation and on overall simple logistics. To compare, a PSLV launch involves 600 officials while SSLV launch operations would be managed by a small team of about six people. The launch readiness period of the SSLV is expected to be less than a week instead of months. The launch vehicle can be assembled both vertically like the existing PSLV and GSLVs and horizontally like the decommissioned SLV and ASLV.
The first three stages of the vehicle use solid propellant, with a fourth stage being a velocity-trimming module.
- Height: 34.0 meters
- Diameter: 2.0 meters
- Mass: 120 tonnes
Small Satellite Launch Complex (SSLC)
According to the director of VSSC, S. Somanath, the maiden flight is expected in early 2020, and flights to inclined orbits will launch from Sriharikota, at first using existing launch pads and later from dedicated facility called Small Satellite Launch Complex (SSLC). Tenders related to manufacturing, installation, assembly, inspection, testing and Self Propelled launching Unit (SPU) were released in October 2019.
|Date / time (UTC)||Rocket,
|Indian military satellite (500 kg) ||LEO||Indian Armed Forces|
|SSLV-D1; first developmental flight.|
|Global-5, Global-6, Global-7, Global-8||LEO||Spaceflight Industries|
|SSLV-D2, second developmental flight carrying four 56 kg Blacksky Global satellites to ~500 km circular orbit with 50° inclination.|
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A study has been carried out to identify suitable locations for establishment of a launch pad for the small satellite launch vehicle. It was found that the locations in the western sea coast near Gujarat did not meet some of the criteria for establishing the launch pad.
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- "TENDER NOTICE NO. SDSC SHAR/Sr.HPS/PT/13/2019-2020" (PDF). www.isro.gov.in. Retrieved 30 October 2019.
REQUEST FOR PROPOSAL (RFP) FOR SUPPLY, INSTALLATION AND COMMISSIONING OF RAIL TRACK FOR SLC PROJECT
- "TENDER NOTICE NO. SDSC SHAR/Sr.HPS/PT/RO/03/2019-2020" (PDF). www.isro.gov.in. Retrieved 30 October 2019.
REQUEST FOR PROPOSAL (RFP) FOR PROCUREMENT, MANUFACTURE, SUPPLY, TESTING & COMMISIONING OF SELF PROPELLED UNITS FOR SLC
- "TENDER NOTICE NO. SDSC SHAR/Sr.HPS/PT/11/2019-2020" (PDF). www.isro.gov.in. Retrieved 30 October 2019.
RFP document for Supply of Stainless Steel Tanks
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- Madhumathi, D.S. (7 August 2019). "ISRO's mini launcher SSLV is unborn but has 2 flights booked". The Hindu. ISSN 0971-751X. Retrieved 16 August 2019.
- "On its maiden flight, India's SSLV will carry two defence satellites". The Economic Times. 20 February 2019. Retrieved 20 February 2019.
- "Application for Earth Exploration Satellite Service by BlackSky Global, LLC" (PDF). FCC. 25 July 2019. p. 6. Archived from the original (PDF) on 28 July 2019. Retrieved 28 July 2019.
Global-5 through Global-8 are currently scheduled to be launched in November 2019 on a Small Satellite Launch Vehicle (SSLV) by the Indian Space Research Organization from its Satish Dhawan Space Center.