1 10 BNSC Radiometer AATSR Advanced along track scanning radiometer Operational 2 11 BNSC Radiometer ATSR Along track scanning radiometer Operational 3 12 BNSC Radiometer ATSR-2 Along track scanning radiometer-2 Operational 4 13 BNSC Radiometer MWR Microwave radiometer Operational 5 30 CNES Communications ARGOS Operational 6 40 CNES Lidar Laser reflectors Operational 7 41 CNES Lidar DORIS Doppler orbitography and radio-positioning integrated by satellite Operational 8 42 CNES Lidar DORIS-NG Doppler orbitography and radio-positioning integrated by satellite-NG Operational 9 47 CNES Radar altimeter POSEIDON-1 (SSALT1) Positioning ocean solid Earth ice dynamics orbiting navigator (single frequency solid state radar altimeter) Operational 10 48 CNES Radar altimeter POSEIDON-2 (SSALT2) Positioning ocean solid Earth ice dynamics orbiting navigator (double frequency solid state radar altimeter) Operational 11 49 CNES Radar altimeter POSEIDON-3 (SSALT3) Advanced microwave radiometer Operational 12 50 CNES Imaging radiometer ATSR/M ATSR/M Operational 13 51 CNES High-resolution optical imager HRG Operational 14 52 CNES Radiometer HRV High-resolution visible Operational 15 53 CNES Radiometer HRVIR High-resolution visible and infrared Operational 16 54 CNES Radiometer ScaRaB/MV2 Scanner for Earth's radiation budget Operational 17 55 CNES Radiometer POLDER POLDER Operational 18 56 CNES Imaging multi-spectral radiometer IIR Imaging Infrared Radiometer Operational 19 60 CNES Spectrometer VEGETATION VEGETATION Operational 20 61 CNES Spectrometer WINDII WINDII Operational 21 62 CNES Altimeter AltiKa Ka band Radar Altimeter Operational 22 80 CSA Communications RADARSAT DTT Operational 23 81 CSA Communications RADARSAT TTC Operational 24 85 CSA Radar SAR (CSA) Synthetic aperture radar (CSA) Operational 25 90 CSA Radiometer MOPITT Measurements of pollution in the troposphere Operational 26 91 CSA Atmospheric chemistry instrument OSIRIS Optical spectrograph and Infrared imaging system Operational 27 97 CSIRO Radiometer Panchromatic imager Operational 28 98 CRCSS Atmospheric temperature and humidity sounder GPS receiver Operational 29 102 DLR Radiometer CHAMP GPS sounder GPS turborogue space receiver (TRSR) Operational 30 103 DLR Radiometer IGOR Integrated GPS and Occultation Receiver Operational 31 116 DLR Magnetometer CHAMP gravity package (Accelerometer+GPS) STAR accelerometer Operational 32 117 DLR Magnetometer CHAMP magnetometry package (1 scalar+2 vector magnetometer) Overhauser magnetometer (OVM) and fluxgate magnetometer (FGM) Operational 33 120 ESA Communications ENVISAT Comms Communications package on ENVISAT Operational 34 121 ESA Communications ERS Comms Communication package for ERS Operational 35 130 ESA Lidar ALADIN Atmospheric laser Doppler instrument Operational 36 131 ESA Lidar ATLID Atmospheric lidar Operational 37 140 ESA Radar AMI/SAR/image Active microwave instrumentation image mode Operational 38 141 ESA Radar AMI/SAR/wave Active microwave instrumentation wave mode Operational 39 142 ESA Radar AMI/scatterometer Active microwave instrumentation wind mode Operational 40 143 ESA Radar ASAR ASAR Operational 41 144 ESA Imaging microwave ASAR Advanced synthetic aperture radar (image mode) Operational 42 145 ESA Imaging microwave ASAR Advanced synthetic aperture radar (wave mode) Operational 43 146 ESA Cloud profile and rain radar CPR Cloud radar Operational 44 147 ESA Radar RA-2/MWR Radar altimeter-2 Operational 45 148 ESA Radar RA/MWR Radar altimeter Operational 46 150 ESA Scatterometer SCATTEROMETER Scatterometer Operational 47 161 ESA Radiometer MIPAS Michelson interferometric passive atmosphere sounder Operational 48 162 ESA Imaging multi-spectral radiometer (passive microwave) MWR-2 Microwave radiometer-2 Operational 49 163 ESA Atmospheric chemistry instrument SOPRANO Sub-milimetre observation of processes in the absorption noteworthy for ozone Operational 50 170 ESA Atmospheric chemistry instrument GOME Global ozone monitoring experiment Operational 51 172 ESA Spectrometer GOMOS Global ozone monitoring by occultation of stars Operational 52 174 ESA Spectrometer MERIS Medium-resolution imaging spectrometer Operational 53 175 ESA Spectrometer SCIAMACHY Scanning imaging absorption spectrometer for atmospheric cartography Operational 54 176 ESA Radiometer MIRAS Microwave imaging radiometer using aperture synthesis Operational 55 177 ESA Radar Altimeter SIRAL SAR/Interferometric Radar Altimeter Operational 56 181 EUMETSAT Communications METEOSAT Comms Communications package for METEOSAT Operational 57 182 EUMETSAT Communications MSG Comms Communications package for MSG Operational 58 190 ESA/EUMETSAT Scatterometer ASCAT Advanced scatterometer Operational 59 200 EUMETSAT Radiometer GERB Geostationary Earth radiation budget Operational 60 202 ESA/EUMETSAT Radiometer GRAS GNSS receiver for atmospheric sounding Operational 61 203 EUMETSAT Radiometer MHS Microwave humidity sounder Operational 62 205 EUMETSAT Radiometer MVIRI METEOSAT visible and infrared imager Operational 63 207 EUMETSAT Radiometer SEVIRI Spinning enhanced visible and infrared imager Operational 64 208 EUMETSAT Imaging multi-spectral radiometer (vis/IR) VIRI VIRI Operational 65 220 ESA/EUMETSAT Spectrometer GOME-2 Global ozone monitoring experiment-2 Operational 66 221 CNES/EUMETSAT Atmospheric temperature and humidity sounder IASI Infrared atmospheric sounding interferometer Operational 67 240 CAST Communications DCP Data-collection platform transponder Operational 68 245 CAST Radiometer CCD High-resolution CCD camera Operational 69 246 INPE Atmospheric temperature and humidity sounder HSB Humidity sounder/Brazil Operational 70 248 INPE Imaging multi-spectral radiometer (vis/IR) OBA Observador Brasileiro da Amazonia Operational 71 250 CAST Radiometer WFI Wide field imager Operational 72 255 CAST Spectrometer IRMSS Infrared multispectral scanner Operational 73 260 ISRO Precision orbit BSS & FSS transponders Operational 74 261 ISRO Precision orbit DRT-S&R Operational 75 262 ISRO Communications INSAT Comms Communications package for INSAT Operational 76 268 ISRO High-resolution optical imager HR-PAN High-resolution panchromatic camera Operational 77 269 ISRO Imaging multi-spectral radiometer (passive microwave) MSMR Multifrequency scanning microwave radiometer Operational 78 270 ISRO Imaging multi-spectral radiometer (vis/IR) VHRR Very high-resolution radiometer Operational 79 271 ISRO Imaging multi-spectral radiometer (vis/IR) WiFS Wide field sensor Operational 80 275 ISRO High-resolution optical imager AWiFS Advanced wide field sensor Operational 81 276 ISRO High-resolution optical imager LISS-I Linear imaging self scanner-I Operational 82 277 ISRO High-resolution optical imager LISS-II Linear imaging self scanner-II Operational 83 278 ISRO High-resolution optical imager LISS-III Linear imaging self scanner-III Operational 84 279 ISRO High-resolution optical imager LISS-IV Linear imaging self scanner-IV Operational 85 284 ISRO High-resolution optical imager PAN Panchromatic sensor Operational 86 285 ISRO Imaging multi-spectral radiometer (vis/IR) MOS Modular opto-electronic scanner Operational 87 286 ISRO Ocean colour instrument OCM Ocean colour monitor Operational 88 287 ASI ROSA Radio Occultation Sounder of the Atmosphere Operational 89 288 ISRO Scatterometer SCAT Scatterometer Operational 90 290 JMA Communications MTSAT Comms Communications package for MTSAT Operational 91 291 JMA Communications Himawari Comms Communications package for Himawari Operational 92 294 JMA Imaging multi-spectral radiometer JAMI Japanese Advanced Meteorological Imager Operational 93 295 JMA Imaging multi-spectral radiometer IMAGER/MTSAT-2 Imager/MTSAT-2 Operational 94 296 JMA Imaging multi-spectral radiometer VISSR Visible and infrared spin scan radiometer Operational 95 297 JMA Imaging multi-spectral radiometer AHI Advanced Himawari Imager Operational 96 300 NASA Lidar GLAS Geoscience laser altimeter system Operational 97 301 NASA Precision orbit LRA Laser retroreflector array Operational 98 302 NASA Lidar MBLA Multi-beam laser altimeter Operational 99 303 NASA Lidar CALIOP Cloud-aerosol lidar with orthogonal polarization Operational 100 309 NASA Cloud profile and rain radar CPR (Cloudsat) Cloud profiling radar Operational 101 312 NASA Radar NSCAT NASA scatterometer Operational 102 313 NASA Radar SeaWinds ADEOS II - NASA scatterometer Operational 103 330 NASA Earth radiation budget radiometer ACRIM Active cavity radiometer irradiance monitor Operational 104 334 NASA Total and profile ozone BUV Backscatter ultraviolet instrument Operational 105 336 NASA High-resolution optical imager ALI Advanced land imager Operational 106 347 NASA High-resolution optical imager ASTER Advanced spaceborne thermal emission and reflection radiometer Operational 107 348 NASA Earth radiation budget radiometer CERES-2 Cloud and the Earth's radiant energy system Operational 108 351 NASA Atmospheric temperature and humidity sounder GPSDR GPS demonstration receiver Operational 109 353 NASA Total and profile ozone HiRDLS High-resolution dynamics limb sounder Operational 110 354 NASA Total and profile ozone HRDI High-resolution Doppler imager Operational 111 356 NASA Radiometer LIS Lightning imaging sensor Operational 112 358 NASA Magnetic field, auroal imagery scintillation boundary PEM Particle environment monitor Operational 113 359 NASA Ocean colour instrument SeaWiFS Sea-viewing wide field-of-view sensor Operational 114 360 NASA Earth radiation budget radiometer SUSIM (UARS) Solar ultraviolet irradiance monitor Operational 115 363 NASA Total and profile ozone SBUV/1 Solar backscatter ultraviolet 1 instrument Operational 116 365 NASA Imaging multi-spectral radiometer (passive microwave) TMI TRMM microwave imager Operational 117 366 NASA Imaging multi-spectral radiometer (passive microwave) JMR JASON-1 microwave radiometer Operational 118 367 NASA Imaging multi-spectral radiometer AMR Positioning ocean solid Earth ice dynamics orbiting navigator (double frequency solid state radar altimeter) Operational 119 369 NASA Total and profile ozone LIMS Limb infrared monitor of the stratosphere Operational 120 370 NASA Total and profile ozone LRIR Limb radiance inversion radiometer instrument Operational 121 371 NASA Total and profile ozone EPIC Earth polychromatic imaging camera Operational 122 372 NASA Earth radiation budget radiometer NISTAR NIST advanced radiometer Operational 123 373 NASA Magnetic field, auroal imagery scintillation boundary Plasma-Mag Operational 124 374 NASA Other XPS XUV photometer system Operational 125 375 NASA Imaging multi-spectral radiometer (vis/IR) VIRS Visible infrared scanner Operational 126 376 CNES Multiple direction/polarization radiometer POLDER II Polarization and directionality of the Earth's reflectance-II Operational 127 377 NASA Earth radiation budget radiometer TIM Total irradiance monitor Operational 128 379 NASA Imaging multi-spectral radiometer (vis/IR) WFC Wide field camera Operational 129 382 NASA Spectro-radiometer CLAES Cryogenic limb array etalon spectrometer Operational 130 383 NASA Spectro-radiometer HALOE Halogen occultation experiment Operational 131 384 NASA Spectro-radiometer ISAMS Improved stratospheric and mesospheric sounder Operational 132 385 NASA Spectro-radiometer MISR Multi-angle imaging spectroradiometer Operational 133 386 NASA Spectro-radiometer MLS Microwave limb sounder Operational 134 387 NASA Spectro-radiometer MLS (EOS-Aura) Microwave limb sounder (EOS-Aura) Operational 135 389 NASA Spectro-radiometer MODIS Moderate-resolution imaging spectroradiometer Operational 136 393 NASA Gravity HAIRS High accuracy inter-satellite ranging system Operational 137 394 NASA Total and profile ozone OMI Ozone measuring instrument Operational 138 395 NASA Radiometer Atmospheric corrector Atmospheric corrector Operational 139 396 NASA Radiometer Hyperion Hyperspectral imager Operational 140 399 NASA Spectro-radiometer SAGE I Stratospheric aerosol and gas experiment-I Operational 141 400 NASA Spectro-radiometer SAGE II Stratospheric aerosol and gas experiment-II Operational 142 401 NASA Spectro-radiometer SAGE III Stratospheric aerosol and gas experiment-III Operational 143 402 NASA Spectro-radiometer SAMS Stratospheric and mesospheric sounder Operational 144 403 NASA Spectro-radiometer SAM-II Stratospheric aerosol measurement-II Operational 145 404 NASA Spectro-radiometer IRIS Infrared interferometer spectrometer Operational 146 405 NASA Atmospheric temperature and humidity sounder GIFTS Geosynchronous imaging Fourier transform spectrometer Operational 147 420 NASA Spectrometer AIRS Atmospheric Infrared sounder Operational 148 426 NASA Spectrometer SOLSTICE Solar stellar irradiance comparison experiment Operational 149 430 NASA Spectrometer TES Troposhperic emission spectrometer Operational 150 431 NASA Spectrometer TOMS Total ozone mapping spectrometer Operational 151 450 JAXA Communications ADEOS Comms Communications package for ADEOS Operational 152 451 JAXA Communications DCS (JAXA) Data-collection system (JAXA) Operational 153 453 NASDA Communications GMS Comms Communications package on GMS Operational 154 454 NASDA Communications JERS-1 Comms Communications package for JERS-1 Operational 155 460 NASDA Lidar RIS Retroreflector in space Operational 156 461 NASDA Radar PR Precipitation radar Operational 157 462 NASDA Imaging microwave radar SAR Synthetic aperture radar Operational 158 470 JAXA Imaging microwave radar PALSAR Phased array type L-band synthetic aperture radar Operational 159 478 JAXA Imaging multi-spectral radiometer (passive microwave) AMSR2 Advanced microwave scanning radiometer 2 Operational 160 479 JAXA Imaging multi-spectral radiometer (passive microwave) AMSR-E Advanced microwave scanning radiometer - EOS Operational 161 480 JAXA High-resolution optical imager PRISM (ALOS) Panchromatic remote-sensing instrument for stereo mapping Operational 162 481 JAXA Radiometer AMSR Advanced microwave scanning radiometer Operational 163 482 NASDA High-resolution optical imager AVNIR Advanced visible and near infrared radiometer Operational 164 483 JAXA High-resolution optical imager AVNIR-2 Advanced visible and near infrared radiometer type 2 Operational 165 484 JAXA Imager GLI Global imager Operational 166 485 NASDA Radiometer MESSR Multispectral electronic self scanning radiometer Operational 167 486 NASDA Radiometer MSR Microwave scanning radiometer Operational 168 487 NASDA Radiometer OCTS Ocean colour and temperature scanner Operational 169 488 NASDA Radiometer OPS Optical sensor Operational 170 489 NASDA Radiometer VISSR (GMS-5) Visible and infrared spin scan radiometer (GMS-5) Operational 171 490 NASDA Radiometer VTIR Visible and thermal infrared radiometer Operational 172 510 NASDA Spectrometer ILAS-I Improved limb atmospheric spectrometer Operational 173 511 NASDA Spectrometer ILAS-II Improved limb atmosphiric spectrometer Operational 174 512 NASDA Spectrometer IMG Inferometric monitor of greenhouse gases Operational 175 514 NASDA Space environment SEM Space environment monitor (NASDA) Operational 176 515 JAXA Total and profile ozone SOFIS Solar occultation Fourier transform spectrometer for inclined orbit satellite Operational 177 516 JAXA Spectrometer TANSO-FTS Thermal and Near infrared Sensor for carbon Observations (TANSO) Fourier Transform Spectrometer (FTS) Operational 178 517 JAXA Imager TANSO-CAI Thermal and Near infrared Sensor for carbon Observations (TANSO) Cloud and Aerosol Imager (CAI) Operational 179 540 NOAA Communications DCS (NOAA) Data-collection system (NOAA) Operational 180 541 NOAA Communications GOES Comms Communications package on GOES Operational 181 542 NOAA Communications LANDSAT Comms Communications package for LANDSAT Operational 182 543 NOAA Communications NOAA Comms Communications package for NOAA Operational 183 544 NOAA Communications S&R (GOES) Search and rescue Operational 184 545 NOAA Communications S&R (NOAA) Search and rescue Operational 185 546 NOAA Communications WEFAX Weather facsimile Operational 186 547 NOAA Spectrometer SEM (GOES) Space environment monitor Operational 187 550 NOAA Magnetic field SSM Special sensor magnetometer Operational 188 551 NOAA Magnetic field SSJ/4 Special sensor precipitating plasma monitor Operational 189 552 NOAA Space environment SSIES-2 Special sensor ionospheric plasma drift/scintillation meter Operational 190 553 NOAA Space environment SSB/X-2 Special sensor gamma ray particle detector Operational 191 570 NOAA Radiometer AMSU-A Advanced microwave sounding unit-A Operational 192 574 NOAA Radiometer AMSU-B Advanced microwave sounding unit-B Operational 193 580 NOAA Radiometer ATOVS (HIRS/3 + AMSU + AVHRR/3) Advanced TIROS operational vertical sounder Operational 194 590 NOAA Radiometer AVHRR/2 Advanced very high-resolution radiometer/2 Operational 195 591 NOAA Radiometer AVHRR/3 Advanced very high-resolution radiometer/3 Operational 196 592 NOAA Radiometer AVHRR/4 Advanced very high-resolution radiometer/4 Operational 197 600 NOAA Radiometer ERBE Earth's radiation budget experiment Operational 198 601 NOAA Radiometer ETM+ Enhanced thematic mapper Operational 199 605 NOAA Radiometer HIRS/2 High-resolution infrared sounder/2 Operational 200 606 NOAA Radiometer HIRS/3 High-resolution infrared sounder/3 Operational 201 607 NOAA Radiometer HIRS/4 High-resolution infrared sounder/4 Operational 202 615 NOAA Radiometer IMAGER Imager Operational 203 616 NOAA Imaging multi-spectral radiometer (vis/IR) VIIRS Visible/infrared imager radiometer suite Operational 204 620 NOAA Atmospheric temperature and humidity sounder CrIRS/NP Cross-track infrared sounder/NPOESS Operational 205 621 NOAA Atmospheric temperature and humidity sounder ATMS Advanced technology microwave sounder Operational 206 622 NOAA Radiometer MSS Multispectral scanning system Operational 207 623 NOAA Radiometer MSU Microwave sounding unit Operational 208 624 NOAA Radiometer SBUV/2 Solar backscatter ultraviolet instrument/2 Operational 209 625 NOAA Radiometer SBUV/3 Solar backscatter ultraviolet instrument/3 Operational 210 626 NOAA Radiometer SOUNDER SOUNDER Operational 211 627 NOAA Radiometer SSU Stratospheric sounding unit Operational 212 628 NOAA Radiometer TM Thematic mapper Operational 213 629 NOAA Radiometer TOVS (HIRS/2 + MSU + SSU) TIROS operational vertical sounder Operational 214 630 NOAA Radiometer VAS VISSR atmospheric sounder Operational 215 631 NOAA Radiometer SSZ Operational 216 645 NOAA Spectrometer SEM Space environment monitor Operational 217 650 NRSCC Radiometer MVIRSR (10 channel) Multispectral visible and infrared scan radiometer Operational 218 651 NRSCC Radiometer MVIRSR (3 channel) Multispectral visible and infrared scan radiometer Operational 219 652 NRSCC Radiometer MVIRSR (5 channel) Multispectral visible and infrared scan radiometer Operational 220 670 NSAU Radar RLSBO Side looking microwave radar Operational 221 680 NSAU High-resolution optical imager MSU-EU Multispectral radiometer with high-resolution Operational 222 681 NSAU Imaging multi-spectral radiometer (vis/IR) MSU-UM Visible multispectral radiometer Operational 223 682 NSAU Radiometer RM-08 Imaging microwave radiometer Operational 224 683 NSAU High-resolution optical imager SU-UMS Stereo radiometer with high-resolution Operational 225 684 NSAU High-resolution optical imager SU-VR Visible radiometer with high-resolution Operational 226 685 NSAU Radiometer TRASSER Operational 227 700 ROSCOSMOS Communications KONDOR-2 Data-collection and transmission system Operational 228 701 ROSCOSMOS Communications BRK Operational 229 710 ROSCOSMOS Lidar ALISSA Backscatter lidar Operational 230 712 ROSCOSMOS Lidar Balkan-2 lidar Operational 231 715 ROSCOSMOS Lidar MK-4 Operational 232 716 ROSCOSMOS Lidar MK-4M Operational 233 730 ROSCOSMOS Radar Greben Radar altimeter Operational 234 731 ROSCOSMOS Radar SAR-10 Synthetic aperture radar Operational 235 732 ROSCOSMOS Radar SAR-3 Synthetic aperture radar Operational 236 733 ROSCOSMOS Radar SAR-70 Synthetic aperture radar Operational 237 740 ROSCOSMOS Radar SLR-3 Side looking radar Operational 238 745 ROSCOSMOS Radar Travers SAR Operational 239 750 ROSCOSMOS Radiometer 174-K Temperature and humidity profiler Operational 240 751 ROSCOSMOS Radiometer BTVK Scanning television radiometer Operational 241 752 ROSCOSMOS Radiometer Chaika Scanning infrared radiometer Operational 242 753 ROSCOSMOS Radiometer DELTA-2 Multispectral microwave scanner Operational 243 755 ROSCOSMOS Radiometer IKAR-D Multispectral microwave scanner Operational 244 756 ROSCOSMOS Radiometer IKAR-N Multispectral microwave scanner Operational 245 757 ROSCOSMOS Radiometer IKAR-P Multispectral microwave scanner Operational 246 760 ROSCOSMOS Radiometer ISP Operational 247 761 ROSCOSMOS Radiometer KFA-1000 Photographic camera Operational 248 762 ROSCOSMOS Radiometer KFA-200 Photographic camera Operational 249 763 ROSCOSMOS Radiometer KFA-3000 Photographic camera Operational 250 770 ROSCOSMOS Radiometer Klimat Scanning infrared radiometer Operational 251 771 ROSCOSMOS Radiometer Klimat-2 Scanning infrared radiometer Operational 252 775 ROSCOSMOS Radiometer MIRAS Operational 253 776 ROSCOSMOS Radiometer MIVZA Operational 254 777 ROSCOSMOS Radiometer MIVZA-M Microwave scanning radiometer Operational 255 780 ROSCOSMOS Radiometer MR-2000 Operational 256 781 ROSCOSMOS Radiometer MR-2000M Operational 257 785 ROSCOSMOS Radiometer MR-900 Scanning telephotometer Operational 258 786 ROSCOSMOS Radiometer MR-900B Scanning visual band telephotometer Operational 259 790 ROSCOSMOS Radiometer MSU-E Multispectral high-resolution electronic scanner Operational 260 791 ROSCOSMOS Radiometer MSU-E1 Multispectral high-resolution electronic scanner Operational 261 792 ROSCOSMOS Radiometer MSU-E2 Multispectral high-resolution electronic scanner Operational 262 793 ROSCOSMOS Radiometer MSU-M Operational 263 794 ROSCOSMOS Radiometer MSU-S Multispectral medium-resolution scanner Operational 264 795 ROSCOSMOS Radiometer MSU-SK Multispectral medium-resolution conical scanner Operational 265 796 ROSCOSMOS Radiometer MSU-V Multispectral high-resolution conical scanner Operational 266 810 ROSCOSMOS Radiometer MTZA Scanning microwave radiometer Operational 267 815 ROSCOSMOS Imaging multi-spectral radiometer (passive microwave) MZOAS Scanning microwave radiometer Operational 268 820 ROSCOSMOS Imaging multi-spectral radiometer (passive microwave) R-225 Single channel microwave radiometer Operational 269 821 ROSCOSMOS Radiometer R-400 Operational 270 822 ROSCOSMOS Radiometer R-600 Single channel microwave radiometer Operational 271 830 ROSCOSMOS Radiometer RMS Radiation measurement system Operational 272 835 ROSCOSMOS Radiometer TV camera Operational 273 836 ROSCOSMOS Radiometer SILVA Operational 274 840 ROSCOSMOS Spectro-radiometer SROSMO Spectroradiometer for ocean monitoring Operational 275 850 ROSCOSMOS Spectrometer BUFS-2 Backscatter spectrometer/2 Operational 276 851 ROSCOSMOS Spectrometer BUFS-4 Backscatter spectrometer/4 Operational 277 855 ROSCOSMOS Spectrometer ISTOK-1 Infrared spectrometer Operational 278 856 ROSCOSMOS Spectrometer SFM-2 Spectrometer to measure direct solar radiation Operational 279 857 ROSCOSMOS Spectrometer DOPI Operational 280 858 ROSCOSMOS Spectrometer KGI-4 Operational 281 859 ROSCOSMOS Spectrometer Ozon-M Operational 282 860 ROSCOSMOS Spectrometer RMK-2 Operational 283 900 NOAA Radiometer MAXIE Magnetospheric atmospheric X-ray imaging experiment Operational 284 901 NOAA Radiometer OLS Operational linescan system Operational 285 905 NOAA Radiometer SSM/I Mission sensor microwave imager Operational 286 906 NOAA Radiometer SSM/T-1 Mission sensor microwave temperature sounder Operational 287 907 NOAA Radiometer SSM/T-2 Mission sensor microwave water vapour sounder Operational 288 908 NOAA Radiometer SSMIS Special sensor microwave imager sounder Operational 289 910 NOAA Radiometer SXI Solar X-ray imager Operational 290 930 NOAA Spectrometer EHIC Energetic heavy ion composition experiment Operational 291 931 NOAA Spectrometer X-ray astronomy payload Operational 292 932 NRSCC Imaging multi-spectral radiometer (vis/IR) IVISSR (FY-2) Improved multispectral visible and Infrared scan radiometer (5 channels) Operational 293 933 NRSCC Atmospheric temperature and humidity sounder IRAS Infrared atmospheric sounder Operational 294 934 NRSCC Atmospheric temperature and humidity sounder MWAS Microwave atmospheric sounder Operational 295 935 NRSCC Atmospheric temperature and humidity sounder IMWAS Improved Microwave atmospheric sounder Operational 296 936 NRSCC Atmospheric temperature and humidity sounder MWHS Microwave humidity sounder Operational 297 937 NRSCC Imaging multi-spectral radiometer (vis/IR) MVIRS Moderate-resolution visible and infrared imaging spectroradiometer Operational 298 938 NRSCC Imaging multi-spectral radiometer (passive microwave) MWRI Microwave radiation imager Operational 299 940 ROSCOSMOS Atmospheric temperature and humidity sounder MTVZA-OK Scanning microwave radiometer Operational 300 941 CNES Atmospheric temperature and humidity sounder SAPHIR Operational 301 942 CNES Microwave imager MADRAS Microwave Analysis and Detection of Rain and Atmospheric Structures Operational 302 944 NOAA Radar altimeter ALT Altimeter Operational 303 945 NOAA Earth radiation budget radiometer TSIS Total solar irradiance sensor Operational 304 946 NOAA Imaging multi-spectral radiometer (passive microwave) CMIS Conical-scanning microwave imager/sounder Operational 305 947 NOAA Total and profile ozone OMPS Ozone mapping and profiler suite Operational 306 948 NOAA Space environment atmospheric temperature and humidity sounder GPSOS Global positioning system occultation sensor Operational 307 949 NOAA Magnetic field, auroal imagery scintillation boundary SESS Space environmental sensor suite Operational 308 950 NRSCC Imaging multi-spectral radiometer (vis/IR) VIRR Multispectral visible and infrared scan radiometer (10 channels) Operational 309 951 NRSCC Total and profile ozone TOM Total ozone mapper Operational 310 952 NRSCC Total and profile ozone OP Ozone profiler Operational 311 953-999 Reserved Operational 312 1000-2046 Reserved for long-term future use Operational 313 2047 Missing value Operational