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SRE – 1

Launch Date:10.01.2007

Space Capsule Recovery Experiment (SRE – 1) is a 550 kg capsule intended to demonstrate the technology of an orbiting platform for performing experiments in micro gravity conditions. After completion of the experiments, the capsule was de-orbited and recovered. SRE – 1 mission provided a valuable experience in fields like navigation, guidance and control during the re-entry phase, hypersonic aero thermodynamic, development of reusable thermal protection system (TPS), recovery through deceleration and flotation, besides acquisition of basic technology for reusable launch vehicles.

The SRE-1 spacecraft was mounted inside the deployable module over which the CAROSAT-2 spacecraft was mounted. For the first time, a Dual Launch Adopter (DLA) was used in PSLV to accommodate two primary satellites in tandem. A Video Imaging camera on-board imaged the deployment of the CAROSAT-2, PEHUENSAT-1 and the SRE-1 from the launch vehicle. A highlight of the mission is that ISTRAC and the Mission Team from ISAC managed two satellite missions operation simultaneously. The recovered hardware was found to be in excellent condition and valuable data returned from space have been analyzed for its scientific contents.

SRE – 1 carries two experiments, an Isothermal Heating Furnace (IHF) and a Bio-mimeic experiment. SRE was launched into a 635 km polar SSO in January 2007 as a co-passenger with CARTOSAT -2 and stayed in orbit for 10 days during which its payloads performed the operations they are intended to. The SRE capsule was de-boosted and recovered successfully back on earth on 22nd January 2007.


Experimental, Micro-gravity Technology, Re-entry mission

Lift-off Mass

550 Kg

Spacecraft Power

45 Watts




MMU package for computation of navigation parameters

Sensors: Gyros, Magnetometer,Sun sensors,RCS:Bi-propellant22N Thruster for re-entry 


Isothermal Heating Furnace (IHF) and a Bio-mimetic experiment.

Launch Date

January 10, 2007

Launch Vehicle




Orbit Life

12 Days


1.Design of satellite which can be put in-orbit and then brought back to earth.

2.Design of Aerodynamic structure to withstand atmospheric re-entry dynamic and thermal loads.

3.Development and integration of parachute systems to safely land on earth.

4.Low cost platform for micro-gravity xperiments in space science and technology.

5.First step towards Human Space programme.











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