Related by context. Frequent words. (Click for all words.) 53 IITM 50 interferometers 50 TIFR 50 frequency modulation 49 interplanetary spacecraft 49 Isro 49 Kasturirangan 49 spectrographs 48 photometer 48 Edusat 48 Oceansat 2 48 XMM Newton 48 Resourcesat 2 48 ISRO 47 VLBA 47 telescope 47 EDUSAT 47 ionospheric 47 Remote sensing 46 gravitational wave 46 downlinks 46 Chandrayan 46 Nehru Planetarium 46 PSLV C# 46 LIGO 46 Very Large Array 45 SPIRE 45 photometry 45 interferometer 45 telescopes 45 remote sensing satellites 44 Jodrell Bank 44 optical wavelengths 44 CubeSat 44 Telescope 44 VLBI 44 Spectrometer 44 NASAs 44 COROT 44 celestial objects 44 astronomical observations 44 VHF UHF 44 beamline 44 confocal 44 multispectral 44 APRS 44 WFC3 44 terrestrially 43 infrasound 43 doppler 43 beamlines 43 Raman 43 INSAT 43 Galaxy Evolution 43 IISc 43 photometric 43 Ku Band 43 VSSC 43 Vehicle PSLV 43 geostationary satellite 43 IGCAR 43 visible wavelengths 43 SMOS 43 IIT Chennai 43 HRSC 43 MetOp 43 optical telescope 43 QSO 43 Prithvi II 42 SSTL 42 G. Madhavan Nair 42 QSOs 42 ionosphere 42 National Astronomical Observatory 42 spacecrafts 42 G Madhavan Nair 42 Voyager spacecraft 42 STScI 42 DubaiSat 1 42 Shortwave 42 Cartosat 42 synchrotron radiation 42 spectrometer 42 FT IR 42 Arecibo Observatory 42 Chandrayaan 42 geostationary satellites 42 Vikram Sarabhai 42 observatories 42 microsatellite 42 JWST 42 Kitt Peak 42 terrestrial 42 Square Kilometre Array 42 frequencies 41 Multimode 41 observatory 41 CloudSat 41 optical telescopes 41 spacecraft orbiting 41 NMR