IRS (Indian Remote Sensing satellite)
The IRS (Indian Remote Sensing satellite) program is a series of Earth resources satellites launched by ISRO (Indian Space Research
Organisation). The first of them, IRS-1A, followed on from the two Bhaskara
experimental resources satellites launched in 1979 and 1981.
| spacecraft | launch date | launch vehicle | launch site | orbit | mass (kg) |
| IRS-1A | Mar 17, 1988 | Vostok M | Baikonur | 894 × 912 × 99° | 975 |
| IRS-1B | Aug 29, 1991 | Vostok M | Baikonur | 890 × 917 × 99° | 980 |
| IRS-1E | Sep 20, 1993 | PSLV | Sriharikota | launch failure | |
| IRS-1C | Dec 28, 1995 | Molniya-M | Baikonur | 805 × 817 × 99° | 1,250 |
| IRS-P3 | Mar 21, 1996 | PSLV | Sriharikota | 818 × 821 × 99° | 930 |
| IRS-1D | Sep 29, 1997 | PSLV | Sriharikota | 737 × 827 × 99° |
