https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 25.0 2026-10-14T11:01:53.659Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/platforms/0af3eeb1-3339-46ad-964f-2d18dce319fe Nimbus-7 Date=2021-07-23 User Id=sritz Entity=AltLabel Operation=INSERT System Note=insert AltLabel New Value=id: null category: primary text: Nimbus-7 language code: en Date=2015-05-12 User Id=saritz Entity=PrefLabel Operation=UPDATE Field=text System Note=update PrefLabel Old Value=NIMBUS-7 New Value=Nimbus-7 Date=2021-07-23 User Id=sritz Entity=Resource Operation=UPDATE Field=type System Note=update Resource Old Value=IMAGE New Value=image The Nimbus 7 research-and-development satellite served as astabilized, earth-oriented platform for the testing of advancedsystems for sensing and collecting data in the pollution,oceanographic and meteorological disciplines. The polar-orbitingspacecraft consisted of three major structures: (1) a hollowtorus-shaped sensor mount, (2) solar paddles, and (3) a controlhousing unit that was connected to the sensor mount by a tripod trussstructure. Configured somewhat like an ocean buoy, Nimbus-7 wasnearly 3.04 m tall, 1.52 m in diameter at the base, and about 3.96 mwide with solar paddles extended. The sensor mount that formed thesatellite base housed the electronics equipment and battery modules.The lower surface of the torus provided mounting space for sensors andantennas. A box-beam structure mounted within the center of the torusprovided support for the larger sensor experiments. Mounted on thecontrol housing unit, which was located on top of the spacecraft, weresun sensors, horizon scanners, and a command antenna. The spacecraftspin axis was pointed at the earth. An advanced attitude-controlsystem permitted the spacecraft's orientation to be controlled towithin plus or minus 1 deg in all three axes (pitch, roll, and yaw).Eight experiments were selected: (1) Limb Infrared Monitoring of theStratosphere (LIMS), (2) Stratospheric And Mesopheric Sounder (SAMS),(3) Coastal-Zone Color Scanner (CZCS), (4) Stratospheric AerosolMeasurement II (SAM II), (5) Earth Radiation Budget (ERB), (6)Scanning Multichannel Microwave Radiometer (SMMR), (7) SolarBackscatter UV and Total Ozone Mapping Spectrometer (SBUV/TOMS), and(8) Temperature-Humidity Infrared Radiometer (THIR). These sensorswere capable of observing several parameters at and below themesospheric levels. The Nimbus-7 spacecraft was turned off in 1994after 16 years of service.Group: Platform_Details Entry_ID: NIMBUS-7 Group: Platform_Identification Platform_Category: Earth Observation Satellites Platform_Series_or_Entity: NIMBUS Short_Name: NIMBUS-7 End_Group Group: Synonymous_Platform_Names Short_Name: Nimbus-G End_Group Group: Platform_Associated_Instruments Short_Name: CZCS Short_Name: TOMS Short_Name: SBUV Short_Name: LIMS Short_Name: THIR Short_Name: SAMS Short_Name: SMMR Short_Name: ERB End_Group Group: Orbit Orbit_Altitude: 955 km Orbit_Inclination: 99.1 degree Equator_Crossing: 12:00 PM for ascending and 12:00 AM for descending Period: 104.15 min. Repeat_Cycle: 6 days End_Group Creation_Date: 2007-10-17 Online_Resource: http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1978-098A Online_Resource: http://nasascience.nasa.gov/missions/nimbus Sample_Image: http://toms.gsfc.nasa.gov/n7toms/images/n7c100small.gif Group: Platform_Logistics Launch_Date: 1978-10-24 Launch_Site: Vandenberg Air Force Base, USA Primary_Sponsor: USA/NASA End_GroupEnd_Group 2021-07-23 17:10:27.0