The Small Satellite launch vehicle is an expendable small-lift capacity launch vehicle designed and built by ISRO.
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The Small Satellite launch vehicle is an expendable small-lift capacity launch vehicle designed and built by ISRO.
| Decade | Successful | Partial success | Failure | Total |
|---|---|---|---|---|
| 2020s | 2 | 0 | 1 | 3 |
| Flight No. | Date and time (UTC) | Rocket, configuration | Launch site | Payload | Payload mass | Orbit | User | Launch outcome |
|---|---|---|---|---|---|---|---|---|
| D1 | 7 August 2022 03:48 | SSLV | First |  EOS 02 AzaadiSAT [1] | 143 kg | LEO (intended) TAO (achieved) | ISRO | Failure |
| The first developmental flight of SSLV. The mission target was a circular orbit of altitude 356.2 km with 37.2° inclination. The mission carried two satellite payloads. The 135 kg EOS 02, an Earth observation satellite and the 8 kg AzaadiSAT CubeSat. [2] [3] [4] Due to sensor failure coupled with shortcomings of onboard software, the stage as well as the two satellite payloads were injected into an unstable transatmospheric Earth orbit measuring 356×76 km and subsequently destroyed upon reentry. According to S. Somanath, an anomaly lasting 2 seconds in one of the accelerometers during second stage separation initiated salvage mode by onboard computer. Guidance, navigation, and control software switched from 'closed loop guidance' where it received real-time feedback from all sensors to an 'open loop guidance' where accelerometer data gets isolated and a predetermined path is followed. [5] This resulted in velocity shortfall from the required 7.3 km/s to 7.2 km/s. Being in salvage mode, Velocity-Trimming Module didn't rectify this shortfall which led to mission failure. | ||||||||
| D2 | 10 February 2023 03:48 [6] [7] [8] | SSLV | First | EOS-07  Janus-1 AzaadiSAT-2 | 156.3 kg 11.5 kg 7.3 kg Total = 334 kg | LEO | ISRO | Success |
| Second developmental flight of the SSLV. [9] [10] [11] The purpose of SSLV-D2 is to launch EOS-07, Janus-1 and AzaadiSAT-2 into a 450-kilometer circular orbit and showcase the in-flight performance of the SSLV vehicle systems. [12] According to SSLV-D1 fault evaluation study, six onboard accelerometers detected vibrations that were longer in duration and more intense during the second stage of separation. In order to ensure that this problem doesn't occur again, the second stage detachment system in SSLV-D2 was modified to reduce vibrations. Furthermore, the system was redesigned to navigate utilizing NavIC data and readings will now be monitored for a longer time before entering rescue mode. [13] The separation mechanism, the equipment bay, and the on-board system for identifying malfunctioning sensors were further modified and five new pieces of hardware were installed. The electronics in SSLV-D2 worked successfully, as did the launch vehicle's new, affordable guidance and navigation system. [14] | ||||||||
| D3 | 16 August 2024 03:47 [15] [16] | SSLV | First | EOS-08 SR-0 DEMOSAT | 175.5 kg 0.2 kg Total = 175.7 kg | LEO | ISRO | Success |
| Third developmental flight and completion of SSLV Development Project. [17] [18] The development team will continue to search for specific operational activities in the VTM stage before ISRO supplies the industry with SSLV technology for serial production. Any necessary fine-tuning will be finished prior to the technology transfer. [19] [20] Repeatable flight performance of the SSLV vehicle systems has also been demonstrated by SSLV-D3. [21] | ||||||||
| Date / time (UTC) | Rocket, Configuration | Launch site | Payload | Orbit | User |
|---|---|---|---|---|---|
| NET 2025 [22] | SSLV | SHAR | TBD PARIKSHIT | ISRO | |
| Flight S1. First serial flight of the SSLV. [16] | |||||
| NET 2025 [22] | SSLV | SHAR | TBD Azista60° | ISRO | |
| Flight S2. [16] | |||||
| 2026 [23] | SSLV | SHAR |  Optimus | LEO | Space Machines Company |
| Space MAITRI (Mission for Australia-India's Technology, Research and Innovation). First dedicated commercial SSLV launch. | |||||
| TBD [24] | SSLV | SHAR | BlackSky Global-5, 6, and two others | LEO | Spaceflight Industries |
| Manifested on a future SSLV commercial flight, four 56 kg Blacksky Global satellites to ~500 km circular orbit with 50° inclination. [25] [26] | |||||
Indian Space Research Organisation is India's national space agency. It serves as the principal research and development arm of the Department of Space (DoS), overseen by the Prime Minister of India, with the Chairman of ISRO also serving as the chief executive of the DoS. It is primarily responsible for space-based operations, space exploration, international space cooperation and the development of related technologies. The agency maintains a constellation of imaging, communication and remote sensing satellites. It operates the GAGAN and IRNSS satellite navigation systems. It has sent three missions to the Moon and one mission to Mars.
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The Small Satellite Launch Vehicle (SSLV) is a small-lift launch vehicle developed by ISRO to deliver 500 kg (1,100 lb) payload to low Earth orbit or 300 kg (660 lb) payload to Sun-synchronous orbit. The rocket supports multi-orbital drop-offs capability for small satellites.
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NewSpace India Limited (NSIL) is a Public Sector Undertaking (PSU) of the Government of India and under Department of Space. NSIL is responsible for producing, assembling and integrating the launch vehicle with the help of industry consortium. It was established on 6 March 2019 under the administrative control of the Department of Space (DoS) and the Company Act 2013. The main objective of NSIL is to scale up private sector participation in Indian space programmes.
EOS-02 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). 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.
The SSLV-D1 was the first mission of the Small Satellite Launch Vehicle (SSLV). Due to a sensor fault during separation of second stage and subsequent initiation of Open Loop Guidance by onboard computer to salvage the mission, the upper stage did not fire for planned duration and payloads were ultimately injected into a decaying orbit not achieving the objectives of mission.
AzaadiSAT was an Indian Earth observation 8U Cubesat weighing around 8 kg developed by the Space Kidz India as a test payload on the maiden launch of the Small Satellite Launch Vehicle (SSLV). It was hitching a ride with EOS-02, the primary satellite of the mission. The launch on 7 August 2022 was a failure in the rocket leading to imminent return to atmosphere for the rocket and the satellites it carried, destroying them all.
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Gaganyaan-1 will be the first uncrewed test flight of the Gaganyaan programme, with launch planned for December 2024.
The SSLV-D2 was the second mission of the Small Satellite Launch Vehicle (SSLV). The vehicle carried three payloads: EOS–07, Antaris US Firm named as Janus-01 and AzaadiSAT-2 by SpaceKidz India.
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EOS-02: EOS-02 is configured around MicroSat-TD bus platform to demonstrate launch on demand capability with SSLV. It is expected to meet the ever-increasing user demands for cartographic applications, urban and rural management, coastal land use and regulation, utilities mapping, development and various other GIS application. The mission life of the satellite is 9 months.
Following are the space programmes & missions planned in the year 2024. [...] One SSLV mission, to launch a technology demonstration Satellite (EOS-08).
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
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