Ooty Radio Telescope (ORT) Latitude: 11°23’ North Longitude: 76°40’ East Equatorially mounted, off-axis parabolic cylinder 530m (N-S) x 30m (E-W) Reflecting surface made of 1100 stainless steel wires Feed – 1056 λ/2 dipoles E-W Tracking and N-S Steering of ORT (~9.5 hours, ± 60 o ) High-sensitivity IPS measurement using Ooty Radio Telescope provide –Speed of the solar wind –Density turbulence spectrum Operated by Radio Astronomy Centre National Centre for Radio Astrophysics Tata Institute of Fundamental Research (NCRA-TIFR) Ooty, India Giant Meter wavelength Radio Telescope (near Pune) Multi-frequency synthesis imaging system 27-km baseline 30 antennas of each 45 m diameter Various Astronomical Studies