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(Click for frequent words.) 71 multispectral 64 hyperspectral 62 panchromatic 61 synthetic aperture radar 61 hyper spectral 60 Synthetic Aperture Radar SAR 60 meter panchromatic 60 multispectral imagery 59 Synthetic Aperture Radar 59 multispectral imager 58 Multispectral 58 electro optical infrared 58 LiDAR 58 spectral bands 58 Advanced Synthetic Aperture 58 resolution panchromatic 58 MERIS 57 electro optical EO 57 Imaging Spectrometer 57 remote sensing 57 polarimetric 57 shortwave infrared 56 imaging spectrometer 56 Pancam 56 hyperspectral imagery 56 panchromatic camera 56 EO IR 56 thermal infrared 56 multispectral camera 56 meter multispectral 56 MWIR 56 infrared imager 55 airborne LiDAR 55 radar altimeter 55 photogrammetric 55 orthorectified 55 hyperspectral sensors 55 UltraCamXp 55 Digital Elevation Models 55 QWIP 55 Landsat 55 IFSAR 55 ADS# [001] 55 RADARSAT 54 hyperspectral imaging 54 multispectral imaging 54 ESA Envisat satellite 54 Landsat satellite 54 hyperspectral imager 54 airborne LIDAR 54 ESA Envisat 54 TerraSAR X 54 MODIS 54 CARTOSAT 54 imager 54 spectrometric 54 Moderate Resolution Imaging 54 Landsat imagery 53 UltraCamXp Wide Angle 53 Cartosat 53 DigitalGlobe WorldView 2 53 GeoSAR 53 ortho rectified 53 polarimetry 53 satellite RISAT 53 synthetic aperture 53 Cloud Aerosol Lidar 53 HiRISE camera 53 Lunar Reconnaissance Orbiter Camera 53 multibeam sonar 53 Ranging LiDAR 53 hyper spectral imaging 53 infrared imagery 53 digital orthophotography 53 Resolution Imaging Spectrometer 53 radar altimeters 52 DigitalGlobe WorldView 52 Envisat Medium Resolution 52 airborne lidar 52 Mars Color Imager 52 panchromatic imagery 52 remote sensing imagery 52 Radar ASAR instrument 52 laser altimeter 52 LADAR 52 spectrographs 52 interferometric 52 laser altimetry 52 Raman spectrometer 52 Envisat Advanced Synthetic Aperture 52 oblique aerial 52 correlation spectroscopy 52 orthophoto 52 Thermal Emission 52 radiometry 52 electro optical sensors 52 Hyperspectral 52 SWIR cameras 52 F#W 52 Synthetic Aperture 52 AVHRR 52 HRTEM 52 SRTM 52 Space Imaging IKONOS 51 Multibeam 51 High Resolution Imaging 51 satellite IKONOS 51 Multi Object Spectrograph 51 UK DMC2 51 GOES satellites 51 GeoPerspectives 51 BuckEye 51 CCD camera 51 Ikonos 51 LWIR 51 Advanced Microwave Scanning 51 confocal microscope 51 multibeam 51 Imaging Spectrometer MERIS 51 interferogram 51 CARTOSAT 2A 51 Uninhabited Aerial Vehicle 51 IKONOS 51 georeferenced 51 ASAR 51 lidar 51 Interferometric Synthetic Aperture Radar 51 Landsat satellites 51 gradiometer 51 WISE infrared 51 EO IR sensor 51 infrared spectral 51 NOAA GOES 51 mosaicking 50 TerraSAR X satellite 50 Spectrograph 50 Multi Object Spectrometer 50 Total Ozone Mapping 50 Phased Array 50 Context Camera 50 airborne hyperspectral 50 CRISM 50 spatial resolution 50 radiometer 50 DigitalGlobe ImageLibrary 50 spectrographic 50 QuickBird imagery 50 NASA EPOXI mission 50 Earth Observation EO 50 Radar Altimeter 50 laser scanning 50 Moon Mineralogy Mapper 50 aboard ESA Envisat 50 Imaging Spectroradiometer 50 DigitalGlobe QuickBird satellite 50 Envisat satellites 50 UV Visible 50 Thermal Emission Imaging 50 TanDEM X 50 orthophotos 50 AN/AAQ-# 50 Imaging Spectroradiometer MODIS 50 orthophoto production 50 arcminutes 50 remotely sensed 50 Moderate Resolution 50 RISAT 50 IKONOS Satellite 50 Scatterometer 50 Narrow Angle 50 infrared 50 mega pixel sensor 50 OrbView 3 50 elevation models DEMs 50 multisensor 50 interferograms 50 diffractive 50 satellite imagery aerial 50 Cartosat 2B 49 airborne reconnaissance 49 Magnetic resonance 49 spectral imaging 49 scatterometer 49 Aqua satellite 49 laser designator 49 AATSR 49 Interferometric 49 photogrammetric mapping 49 Thermal Emission Spectrometer 49 Optech ALTM 49 AIRSS 49 infrared imaging 49 electro-optical/infrared 49 radio occultation 49 NIRCam 49 ultrahigh resolution 49 indium gallium arsenide InGaAs 49 orthophotography 49 uncooled infrared 49 Satellites GOES 49 HySI 49 electro optic sensors 49 Thematic Mapper 49 airborne remote sensing 49 RESOURCESAT 49 planimetric 49 interferometric synthetic aperture radar 49 DigitalGlobe QuickBird 49 UVOT 49 Spectrometers 49 ESA Proba 49 Quickbird 49 submillimeter wavelength 49 magnetic electromagnetic 49 electro optical sensor 49 photon counting 49 AMIE 49 Radar ASAR 49 Optical Microscope 49 Mars Descent Imager 49 microwave radiometer 49 Magnetic Imager HMI 49 DEV DA TOMAR NEXT 49 microwave remote sensing 49 OSIRIS 49 Earth Observation satellites 49 System THEMIS 49 Panoramic Camera 49 orthoimagery 49 WFC3 49 bathymetric 49 Solar Backscatter Ultraviolet 49 infrared countermeasure 49 georeferencing 49 ASTER 49 uncooled thermal 49 topographic mapping 49 geo referenced 49 Resourcesat 49 RapidEye 49 Ocean Salinity 49 CanoScan LiDE# 49 MODIS instrument 48 Near Infrared 48 multiwavelength 48 Infrared Pathfinder Satellite 48 QuickBird satellite 48 near infrared NIR 48 LiDAR Light 48 Compact Reconnaissance Imaging Spectrometer 48 Advanced Spaceborne Thermal Emission 48 fainter objects 48 Vexcel Corporation 48 FORCAST 48 FTIR spectrometer 48 ENVISAT 48 Reflection Radiometer 48 NEXRAD radar 48 aboard Envisat 48 eCognition 48 Shuttle Radar Topography 48 Hyperspectral Imager 48 magnetic radiometric 48 Resourcesat 2 48 Ranging LIDAR 48 TecSAR 48 infrared seeker 48 electro optical 48 ERDAS IMAGINE 48 Nikon D# Kowa 48 NASA Landsat 48 reflectometry 48 aspherical lens 48 RADARSAT 2 48 rover panoramic 48 Envisat radar 48 situ measurements 48 widefield 48 Infoterra 48 QuickBird 48 FluxData 48 remote sensing satellites 48 f#.# f#.# 48 AN/ALQ-# 48 Spectroradiometer MODIS 48 Reflection Radiometer ASTER 48 Targeting Forward Looking 48 monochromator 48 Orbiter LRO 48 NSOM 48 GALEX 48 fluorescence imaging 48 fluorescence microscope 48 Photoacoustic 48 Ocean Salinity SMOS 48 array AESA 48 bathymetry 48 Formosat 2 48 mapping photogrammetry 48 IR LEDs 48 Remote sensing 48 airglow 48 IRST 48 Cartosat 2A 48 laser rangefinder 48 Faint Object 48 ARGUS IS 48 electro optic infrared 47 Star SAFIRE 47 SMOS mission 47 interferometry 47 NASA MODIS satellite 47 ° panoramic 47 ASTAMIDS 47 stylus profilers 47 Inertial Navigation System 47 electromagnetic EM 47 aerial photography 47 Fourier transform 47 optronic 47 ESO VLT 47 gravity gradiometer 47 cephalometric 47 AeroTEM 47 KOMPSAT 47 RISAT 2 47 Meteosat 47 Lunar Reconnaissance Orbiter LRO 47 DEIMOS 47 LEICA DC VARIO ELMARIT 47 photometers 47 Vexcel 47 optical coherence tomography 47 aerial imagery 47 Solar Mass Ejection 47 polar orbiting 47 Lunar Orbiter Laser Altimeter 47 ChemCam 47 Descent Imager Spectral Radiometer 47 Cavity Ring Down 47 LROC 47 EMCCD camera 47 Light Detection 47 #nm #nm [001] 47 XDS VLF EM 47 Imagery 47 #x magnification [002] 47 ortho imagery 47 NIR SWIR 47 POES satellites 47 Near Infrared Camera 47 photogrammetry 47 DIRCM 47 Wide Dynamic Range 47 LRO spacecraft 47 Envisat 47 Mars Orbiter Camera 47 optical coherence tomography OCT 47 InSAR 47 Field Imager 47 6x optical zoom lens 47 KODAK CCD Image Sensors 47 ClearVid CMOS sensor 47 SWIR 47 satellite imagery 47 detector arrays 47 infrared spectroscopic 47 SLR styled 47 Adaptive optics 47 deformable mirrors 47 Earth orbiting satellites 47 confocal microscopes 47 Sniper XR 47 oblique imagery 47 Infrared Mapping Spectrometer VIMS 47 Mission SRTM 47 CCD imager 47 scanning electron microscope SEM 47 HARPS spectrograph attached 47 microbolometer 47 laser triangulation 47 penetrating radar 47 Remote Sensing 47 Polar Operational 47 Extreme Ultraviolet Imaging Spectrometer 47 ESA ERS 47 GMTI 47 RapidEye constellation 47 adaptive optics AO 47 aperture lens 47 confocal microscopy 47 Dynamic Light Scattering 47 ERDAS IMAGINE ® 47 bright F#.# 47 Unmanned Aerial Vehicle 47 scanning electron microscope 47 gyro stabilized 47 pencil beam Scatterometer 46 Mars Climate Sounder 46 Lidar 46 vehicles UAVs 46 OmniVision OV# 46 Credits ESA 46 Mastcam 46 Microwave Imaging Radiometer 46 Vehicle UAV 46 Climate Experiment GRACE 46 Induced Potential 46 fisheye 46 UVIS 46 infrared spectrometer 46 Watchkeeper UAV 46 x ray fluorescence 46 Inertial Measurement Unit 46 Quickbird satellite 46 optical spectroscopy 46 Active Range Gated 46 Xenics 46 Forward Looking Infrared FLIR 46 gamma ray detector 46 patented Enhanced Photoemission 46 WAAS EGNOS 46 Solar TErrestrial RElations Observatory 46 x ray microscopy 46 Fluorescence 46 ESA SMART 46 dimensional atlas 46 WESCAM 46 polar orbiting satellites 46 IKONOS satellite 46 electron diffraction 46 Optech 46 Convection Rotation 46 Infrared 46 GigaGalaxy Zoom 46 SIRAL 46 spectrometer 46 geophysical datasets 46 #mm f/4G ED VR 46 3D electromagnetic EM 46 BQM #E 46 microspectrophotometer 46 WorldView 46 imaging 46 powerful #x optical 46 photoelectron 46 confocal imaging 46 spaceborne 46 inkjet printers UV 46 microscopic imager 46 infrared mapping spectrometer 46 pixel RGB 46 ray fluorescence 46 Normalized Difference Vegetation 46 UltraCam 46 Navy MH #R 46 infrared illuminators 46 ultraviolet UV 46 Electro Optical Infrared 46 EMCCD cameras 46 Meteorological Satellite 46 EMCCD 46 imaging spectroscopy 46 lunar topography 46 resolution synthetic aperture 46 Alpha Particle 46 infrared spectrums 46 NASA Wilkinson Microwave 46 FORMOSAT 46 magnetometry 46 infrared countermeasures 46 fundus camera 46 X ray microscopy 46 millimeter wavelength 46 Laser Scanning 46 #mm f/#.# lens [002] 46 ISO sensitivities 46 panoramic camera 46 #:# scale 46 confocal laser scanning 46 SeaWiFS 46 X ray detectors 46 image intensifier 46 domain optical coherence 46 OrbView 46 NextView 46 LANDSAT 46 ESA Planck 46 reconnaissance 46 infrared detectors 46 Surface Stereo Imager 46 X ray spectrometers 46 AIRS instrument 46 Cosmic Origins Spectrograph 46 vector raster 46 Infrared Imaging 46 Z Backscatter technology 46 absorption spectra 46 MSn 46 GIS remote sensing 46 Sounder AIRS instrument 46 adaptive optics 46 pixel CMOS 46 Mission TRMM 46 Leica HDS# 46 UAVSAR 46 Ikonos satellite 46 Scanning electron microscope 46 VIMOS 46 Envisat ASAR 46 parabolic antenna 46 remote sensing satellite 46 Mars CRISM 46 WAAS GPS 46 Fourier transform infrared spectroscopy 46 TCDL 46 WIYN 46 induced fluorescence 46 fiber optic gyroscopes 46 Landsat images 46 inertial measurement unit 45 EnhancedView 45 #x magnification [001] 45 InGaAs 45 GOES O 45 SAXS 45 gravity gradiometry 45 Explorer WISE 45 Forward Looking Infrared 45 #.#M pixel 45 Ricoh #SE 45 magnetotelluric 45 view Sensor SeaWiFS 45 LORRI 45 EO IR sensors 45 TracePro 45 laser scanner 45 EDXRF 45 Confocal 45 Fugro EarthData 45 MPG ESO 45 #mm #mm equiv 45 Imaging Spectroradiometer MODIS instrument 45 QuickBird satellite imagery 45 spectroscopic 45 THEMIS 45 Signals Intelligence SIGINT 45 Helioseismic 45 Miniature Synthetic Aperture Radar 45 Nikon VR 45 Differential GPS 45 MQ 8B 45 APEX telescope 45 Lunar Orbiter 45 Single Photon Emission Computed 45 Envisat satellite 45 LIDAR 45 cineSpace 45 radiometers 45 AMIE camera 45 IKONOS imagery 45 grayscale images 45 Leica Photogrammetry Suite 45 Miniature Thermal Emission 45 fisheye lenses 45 monocular 45 radiometric measurements 45 multiphoton 45 NIRSpec 45 geo referencing 45 AN/TPY-2 45 fluorescein angiography 45 earth orbiting satellites 45 imageries 45 remote sensing payloads 45 microlens 45 Interferometer 45 Index NDVI 45 x ray beam 45 Thermal Weapon Sight 45 DigitalGlobe imagery 45 EX ZR# [002] 45 SMOS Soil Moisture 45 Joint Helmet Mounted 45 X ray Spectrometer 45 photoluminescence 45 mechanically scanned 45 Infrared Mapping Spectrometer 45 Spectrophotometer 45 WISE telescope 45 X ray absorption spectroscopy 45 Aegis BMD Weapon 45 TSN PZ camera 45 FPAs 45 UltraCamLp 45 Spectrometer 45 Based Augmentation System 45 Trimble S8 45 Sony ICX# 45 Unmanned Aerial Vehicles UAVs 45 Unmanned Aerial Vehicles UAV 45 MJ Harden 45 retroreflector 45 ActiPix 45 Raman spectra 45 electro-optical/infrared sensor 45 infrared imagers 45 Navy F/A-#E/F 45 Predator UAV 45 LaserSoft Imaging 45 HiRISE camera aboard 45 sonars 45 panorama stitching 45 Nowcasting 45 circular polarized 45 geosynchronous orbit GEO 45 Auto Lighting Optimizer 45 Optical Coherence Tomography OCT 45 Exmor ™ 45 Observatory SDO 45 UV VIS 45 Iview 45 MP RTIP 45 Orbitrap 45 photometer 45 X ray detector 45 CT magnetic resonance 45 UAV 45 Aerodata 45 SHARAD 45 monochromators 45 ANTRIX 45 SINFONI 45 aspherical glass 45 fluorescence spectroscopy 45 visit http:/saturn.jpl.nasa.gov 45 Aerial photography 45 Boston Micromachines 45 stereographic 45 deconvolution 45 SBSS satellite 45 electromagnetics 45 Unmanned Aircraft System 45 radiometric 45 NASA MODIS 45 AN/PVS-# 45 Terrain Mapping Camera 45 #mm telephoto lens 45 Adobe RGB color 45 micron pixel pitch 45 Infra Red 45 microprobe 45 Teledyne DALSA 45 fluorescence detector 45 Opgal 45 Fourier transform infrared 44 Mars Orbiter Laser Altimeter 44 COSMO SkyMed 44 Helmet Mounted Display 44 Airborne Topographic Mapper 44 Hubble Ultra 44 eyepiece #/#s f/#.# 44 #.#x zoom lens 44 spectroscopic analysis 44 Tomography SPECT 44 micron wavelength 44 millimeter wave MMW 44 HIRES spectrometer 44 FLIR 44 Spitzer infrared 44 Block IIF 44 APXS 44 Environmental Satellites POES 44 particle analyzers 44 infrared spectra 44 aspherical 44 aerial oblique 44 Airborne Laser Mine 44 HiRISE image 44 spectroradiometers 44 gamma ray spectrometry 44 digital orthophoto mapping 44 Flight Landata 44 altimetry 44 IKONOS satellite imagery 44 Telescope BAT 44 Hyperspectral Imaging 44 geo synchronous 44 TECSAR 44 InfraRed 44 satellite imageries 44 CloudSat 44 Optio P# 44 AKARI 44 ultrawide angle 44 Pictometry International 44 unmanned aerial vehicle 44 Sigma SD# 44 SMOS 44 spectro 44 arcsecond 44 IR spectroscopy 44 FLIR Forward Looking 44 GNSS receivers 44 NAVSTAR 44 cryo electron microscope 44 airborne geophysical surveying 44 Resolution Imaging 44 Instrument OMI 44 aperture telescope 44 DGPS 44 Spectroradiometer 44 S DX NIKKOR 44 spectrometry 44 FOV 44 scanning microscopy 44 inertial navigation system 44 submillimetre 44 ranging LIDAR 44 magnetic gradiometer 44 GPS Block IIF 44 Resolution Stereo Camera 44 ExoMars rover 44 ANTRIX Corporation 44 infrared spectrometers 44 Hyperspectral imaging 44 SAR interferometry 44 Solar Dynamics Observatory 44 Reconnaissance ISR 44 X ray spectrometer 44 passive infrared 44 Lunar CRater Observation 44 ASCAT 44 MARDI 44 spatially referenced 44 Nikkor 44 CMOS imager 44 Lunar Laser Ranging 44 CCD imagers 44 Metop 44 Satellite Imagery 44 multispectral images 44 brightfield 44 sub angstrom 44 MetOp 44 Magnetometer 44 telecentric 44 MultiVision USA 44 hyperspectral remote sensing 44 azimuthal 44 visible wavelengths 44 infared 44 VIRTIS 44 IBEX spacecraft 44 infrared ultraviolet 44 Photometer 44 microscopy technique 44 DMCii 44 Soil Moisture 44 #AF [001] 44 Earth Observing 44 TopoSys 44 O OREOS 44 Heterodyne Instrument 44 SDSS III 44 optical microscope 44 Aerials Express 44 NASA Atmospheric Infrared 44 Deep Field HUDF 44 Absorption Spectroscopy 44 CanoScan #F Color 44 Rosetta orbiter 44 Confocal Laser 44 Time Domain Electromagnetic 44 Aeromagnetic 44 NVESD 44 synthetic aperture radars 44 Program DMSP 44 Rastek UV wide 44 ZEISS 44 non dispersive infrared 44 MultiVision 44 geo stationary satellite 44 AN/AQS-#A 44 ARGUS IR 44 wavelength infrared 44 process captures georeferenced 44 geosynchronous 44 CEUS 44 tunable filter 44 infrared MWIR 44 datalink 44 AMSR E 44 DISR 44 Litening 44 microwave radiometers 44 energy dispersive X 44 optical spectrum analyzer 44 RTK GPS 44 Infrared Thermal Imaging Spectrometer 44 http:/www.nasa.gov/cassini 44 GigaPan Epic 44 CCD sensors 44 Interferometry 44 interferometers 44 Foveon X3 44 tomographic 44 astronomical telescope 44 Recon Optical 44 INTEGRAL 44 datalinks 44 transient electromagnetic 44 HRSC 44 corneal topography 44 UV spectroscopy 44 CBERS 44 Face Recognition AF 44 photodiode array 44 HMDS 44 Texas Instruments BrilliantColor 44 FT IR 44 Electron Microscope 44 inertial measurement units 44 Observatory STEREO 44 spectroradiometer 44 NFIRE satellite 44 NDVI 44 X ray microanalysis 44 3D anaglyph 44 TWT amplifiers 43 #:#,# scale [002] 43 millimeter wavelengths 43 energy dispersive x 43 orbiter Mars Odyssey 43 multiphoton imaging 43 troposcatter communications 43 Positioning Systems 43 echo sounders 43 GEOEYE 43 SESE 43 gamma ray observatory 43 Spectrometry 43 NASA Aqua 43 Ritchey Chrétien 43 F/#.# 43 Gigapixel 43 optical microscopy 43 Formosat 43 spatially resolved 43 electro optics 43 Reflectometry 43 Inertial Navigation Systems 43 diffraction 43 DMSP F# 43 Submillimeter Array 43 dimensional seismic 43 infrared wavelength 43 radiographic imaging 43 intelligence SIGINT 43 Raman spectroscopy 43 Fujinon lens 43 infra red imaging 43 polarimeter 43 Optical Spectroscopic 43 constellations Cygnus 43 TRMM satellite 43 spectral radiance 43 Intermap NEXTMap 43 C1XS 43 colorimeter 43 Trimble GNSS 43 Scanning Electron Microscope 43 ultra violet UV 43 OMEGA instrument 43 #nm wavelength [001] 43 spectrometers 43 VisuMax 43 Greenbelt Md. manages 43 COMINT 43 Mini SAR 43 vision monocular 43 WMAP satellite 43 microfocus X ray 43 tactical SIGINT 43 photon laser 43 echosounder 43 Focal Plane Array 43 Field Imager WFI 43 Cineflex 43 PUVA psoralen plus 43 THz imaging 43 Great Observatories 43 Geostationary 43 EBSD 43 Space ENvironment GEochemistry 43 HD CMOS sensor 43 GOES R 43 tactical reconnaissance 43 DIGIC DV II 43 MGS Mars Orbiter Camera 43 zoom PTZ 43 wavelength tunable 43 4D seismic 43 FE SEM 43 mapping geochemical sampling 43 TIROS 43 EA 6B 43 IR wavelengths 43 STSS satellites 43 Moon Mineralogy Mapper M3 43 Device CCD 43 HDS# 43 electro optic 43 DC Vario Elmarit 43 laser interferometry 43 Infrared Array Camera 43 geospatial 43 Spectra Precision 43 Cosmic Origins Spectrograph COS 43 visible NIR 43 NVIS 43 infrared sensing 43 PaxScan 43 Sequence Enrichment Solution 43 Mars Reconnaissance Orbiter MRO 43 backscattering 43 QS# [002] 43 SSTV 43 Fairchild Imaging 43 photonics mast 43 NASA Stratospheric Observatory 43 Satellite GOES 43 S NIKKOR #mm 43 Electro Optical EO 43 UAVS 43 stereoscopic images 43 gamma ray spectrometer 43 PiB PET 43 Image Processing 43 raster 43 RQ 4N 43 color Doppler 43 NEXTMap USA 43 Titan flybys 43 unmanned reconnaissance aircraft 43 AC #H Spectre 43 HiRISE 43 millimeter wave radar 43 Relations Observatory STEREO 43 Elevation Model 43 imagery 43 radar lidar 43 EarthCARE 43 thermal imaging 43 image intensifier tubes 43 Fujifilm FinePix REAL 43 Nasa Mars Reconnaissance 43 infra red 43 hexagonal mirrors 43 accentuate topographic features 43 TDEM 43 Z Backscatter X ray 43 autofocus lens 43 inertial navigation 43 wavefront sensor 43 Anti Reflection 43 guided munition 43 circular polarization 43 DEMs 43 imagers 43 NYSE DGI 43 Scanning Probe Microscopy 43 Spectroscopic 43 penetrating electromagnetic 43 autofocus LED flash 43 Meteorological Satellites 43 obscurants 43 stereovision 43 orbit GEO 43 ORBIMAGE 43 photon microscopy 43 ICs lasers 43 XRD 43 radiometric surveys 43 DigitalGlobe http:/www.digitalglobe.com 43 helium ion 43 infrared LEDs 43 Electro Optical 43 gigapixel 43 PTZ Pan 43 VTEM airborne 43 aeromagnetics 43 SSPAs 43 sunlight viewable 43 Atmospheric Infrared Sounder 43 Situational Awareness 43 infrared detector 43 infrared IR 43 diffraction pattern