I-1K
I-1K (also referred to as INSAT-1000) is a satellite bus developed by the Indian Space Research Organisation (ISRO) and marketed by Antrix Corporation. The I-1K bus is designed to be compatible with lightweight geostationary satellites and is commonly used for meteorological satellites. Design
 The I-1K bus can be used for satellites in the lightweight category, with a launch mass between . Its dimensions are . I-1K's dry mass is  and can support payloads of . Its power systems can supply between 500 and 1000 watts. The average transponder life is 7 years which can be extended up to 12 years. List of satellites launched using I-1K platform
Kalpana-1
GSAT-12
IRNSS series (1A  1B  1C  1D  1E  1F  1G  1H  1I)
Chandrayaan-1
Mars Orbiter Mission
Aditya-L1 Mission

