I-2K

I-2K is a satellite bus developed by Indian Space Research Organisation (ISRO), and marketed by Antrix Corporation. It is a standard bus for 2,000 kg class satellites; the 'I' in I-2K stands for INSAT, a group of communication satellites developed and launched by ISRO. The satellite buses developed by ISRO are specifically developed for small and medium weight satellites. I-2K spacecraft bus can supply DC power up to 3000 watts. I-2K platform is targeted towards satellites in liftoff mass in range of 1500–2500 kg.

List of satellites launched using I-2K platform

 * INSAT series (3B | 3C | 3D | 3DR | 3E | 4C | 4CR)
 * IRS series (1C | 1D | P3)
 * GSAT series (1 | 2 | 3 (EDUSAT) | 4 | 5P | 6 | 6A | 7 |  7A | 9 | 14 | 31 )
 * HYLAS-1

Features of I-2K

 * Launch Mass: 2000 - 2300 kg.
 * Dimensions: 1.65 * 1.53m in plan & 3.0m in height.
 * Dry Mass: 600 - 950 kg.
 * Payload Mass: 160 - 200 kg.
 * Total Power: 2800 W.
 * Payload Power: 2400 W.
 * Transponder: 12 - 18.
 * Mission Life: 12 - 15 Years.