SARAL

ISRO’s Polar Satellite Launch Vehicle, PSLV-C-20, successfully launched the joint Indo-French Satellite, SARAL, on February 25, 2013 in its twenty third flight from SatishDhawan Space Centre (SDSC) SHAR, Sriharikota. Six other Satellites, namely, UNBRITE (NLS 8.1) and BRITE (NLS 8.2) from Austria, SAPPHIRE and NEOSSAT from Canada, AAUSAT-3(NLS 8.3) from Denmark; and STRaND-1 from United Kingdom, have also been launched into their planned orbits along with SARAL. The SARAL satellite weighing 407kg has now been placed in its final intended orbit.

Satellite with Argos and Altika (SARAL) is an oceanographic satellite jointly developed by ISRO and the French Space Agency CNES.The spacecraft carries three payloads, namely Altika-a ka band altimeter, Argos –a data collection platform and a Solid State C-Band Transponder (SCBT) for calibration of Ground Radars at SDSC, SHAR. ALTIKA payload is the first oceanographic Ka-band based altimeter. The use of Ka-band leads to a better spatial resolution and a high vertical resolution. AltiKa instrument consists of Ka-band altimeter and an embedded dual frequency radiometer. This is coupled with the DORIS (Doppler Orbitography and Radio positioning Integrated by Satellite) tracking system for precise orbit determination and an LRA (Laser Retroreflector Arrray) for calibration

The altimetry mission is focused to have repetitive global measurements of sea surface height, significant wave heights, back scatter coefficient, mean topography, sea surface height anamoly , range, altitude and wind speed for operational oceanography (study of mesoscale ocean circulation, coastal region observations, inland waters, marine ecosystems etc). It will also help in understanding of climate and developing forecasting capabilities. Argos data collection platform helps in collecting data from more than 21,000 transmitters located throughout the globe. These data will be used for environmental monitoring, fleet management, tracking of animals & birds, locating buoys, enforcing maritime security etc.

ISRO's Polar Satellite Launch Vehicle, PSLV-C20, successfully launched the joined Indo-French Satellite, SARAL, on February 25, 2013 in its twenty third flight from Sathish Dhawan Space Centre (SDSC) SHAR, Sriharikota

The data from the SARAL Altika is being received at NRSC and is presently undergoing calibration and validation.The data is continuously being recieved in real time at shadnagar in IMGEOS environment. The information is extracted and provided to ISTRAC for each Orbit for assessing the satellite health parameters. The two ground stations at Kiruna and Inuvik are regularly receiving the data from ALTIKA & ARGOS and data sets are made available in EUMETSAT Server after base processing. This data is fetched by NRSC using the dedicated link established for this activity. Operational Geo Physical Data Records (OGDR) are being generated as Test Products for evaluation on test platforms. The Products will be announced once the calibration activity is completed.

SARAL