@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <http://gcmd.gsfc.nasa.gov/kms#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/64fabc3c-0684-4325-9831-bf7cc461684d>
  skos:changeNote """2016-06-09 10:48:10.0 [epneff] added altLabel 
insert AltLabel (id: null
text: GOES-8 (GEOSTATIONARY OPERATIONAL ENVIRONMENTAL SATELLITE-8)
language code: en); 
""" ;
  ns0:altLabel [ ] ;
  skos:definition """GOES 8 (GOES-I) was launched on April 13, 1994. On Tuesday April 1,
2003 GOES-12 (Formerly Referred to as GOES-M) replaced GOES-8 as the
operational GOES East Satellite. NOAA deactivated the satellite on May
5, 2004 and will boost it into an orbit 350 kilometers above its
original geostationary position, where it will be disposed safely in
three controlled burns.

GOES I-M represented the next generation of meteorological satellites
and introduces two new features.  The first feature, flexible scan,
offers small-scale area imaging that lets meteorologists take pictures
of local weather trouble spots. This allows them to improve short-term
forecasts over local areas. The second feature, simultaneous and
independent imaging and sounding, is designed to allow weather
forecasters to use multiple measurements of weather phenomena to
increase the accuracy of their forecasts.

Each satellite in the series carries two major instruments: an Imager
and a Sounder. These instruments acquire high resolution visible and
infrared data, as well as temperature and moisture profiles of the
atmosphere. They continuously transmit these data to ground terminals
where the data are processed for rebroadcast to primary weather
services both in the United States and around the world, including the
global research community.

The GOES I-M mission ran from the mid-1990s into the
first decade of the 21st century.  Each element of the mission has
been designed to meet all in-orbit performance requirements for at
least five years.

The GOES I-M system performed the following basic functions:
+ Acquisition, processing, and dissemination of imaging and
sounding data.
+ Acquisition and dissemination of Space Environment Monitor
(SEM) data.
+ Reception and relay of data from ground-based Data Collection
Platforms (DCPs) that are situated in carefully selected urban and
remote areas to the NOAA Command and Data Acquisition (CDA) station.
+ Continuous relay of Weather Facsimile (WEFAX) and other data to
users, independent of all other functions.
+ Relay of distress signals from people, aircraft, or marine vessels
to the search and rescue ground stations of the Search and Rescue
Satellite Aided Tracking (SARSAT) system.
GOES provides the instantaneous relay functions for the SARSAT system.
A dedicated search and rescue transponder on board GOES is designed to
detect emergency distress signals originating from Earth-based
sources. These unique identification signals are normally combined
with signals received by a low-Earth orbiting satellite system and
relayed to a search and rescue ground terminal. The combined data are
used to perform effective search and rescue operations.
The GOES I-M system serves a region covering the central and eastern
Pacific Ocean; North, Central, and South America; and the central and
western Atlantic Ocean. Pacific coverage includes Hawaii and the Gulf
of Alaska. This is accomplished by two satellites, GOES West located
at 135 west longitude and GOES East at 75 west longitude. A common
ground station, the CDA station located at Wallops, Virginia,
supports the interface to both satellites. The NOAA Satellite
Operations Control Center (SOCC), in Suitland, Maryland, provides
spacecraft scheduling, health and safety monitoring, and engineering
analyses.

Delivery of products involves ground processing of the raw instrument
data for radiometric calibration and Earth location information, and
retransmission to the satellite for relay to the data user community.
The processed data are received at the control center and disseminated
to the National Weather Service's (NWS) National Meteorological
Center, Camp Springs, Maryland, and NWS forecast offices, including
the National Hurricane Center, Miami, Florida, and the National Severe
Storms Forecast Center, Kansas City, Missouri. Processed data are also
received by Department of Defense installations, universities, and
numerous private commercial users.

MAIN SPACECRAFT DESIGN ELEMENTS
Mission life            5 years, minimum
Dimensions
 Main body              2 meter (7 foot) cube
 Deployed length        27 meters (88 feet)
Weight                  2100 kg (4600 lb)
Orbit                   Geosynchronous
 Altitude               36,000 km (22,000 mi)
 Longitude              75W and 135W
 Latitude               equatorial, within 0.5 degree
Power                   1050 watts @ 42 volts, solar array; battery
backup
Launch vehicle          Atlas-I/Centaur (GOES-I/K), Atlas-II/Centaur
(GOES-L/M)
Communications          Imager and Sounder in GVAR format at 2.1
Mbits/sec
GOES-I/M IMAGER
The GOES Imager is a multi-channel instrument designed to sense
radiant and solar-reflected energy from sampled areas of the
Earth. The multi-element spectral channels simultaneously sweep
east-west and west-east along a north-to-south path by means of a
two-axis mirror scan system. The instrument can produce full-Earth
disc images, sector images that contain the edges of the Earth, and
various sizes of area scans completely enclosed within the Earth scene
using a new flexible scan system. Scan selection permits rapid
continuous viewing of local areas for monitoring of mesoscale
(regional) phenomena and accurate wind determination.
IMAGER CHANNELS AND PRODUCTS
               CHANNEL  1       2*      3*      4       5*
       WAVELENGTH (um)  0.65    3.9     6.7     11      12
PRODUCT
Clouds                  x       x       x       x       x
Water Vapor*                            x       x       x
Surface Temp.                   o               x       o
Winds                   x               x       x
Albedo + IR Flux        x               o       x       o
Fires + Smoke           x       x               o       o
KEY: * = new operational data
     x = primary channel
     o = secondary channel

GOES-I/M SOUNDER
The GOES Sounder is a 19-channel discrete-filter radiometer covering
the spectral range from the visible channel wavelengths to 15
microns. It is designed to provide data from which atmospheric
temperature and moisture profiles, surface and cloud-top temperatures,
and ozone distribution can be deduced by mathematical analysis. It
operates independently of and simultaneously with the Imager, using a
similarly flexible scan system. The Sounder's multi-element detector
array assemblies simultaneously sample four separate fields or
atmospheric columns. A rotating filter wheel, which brings spectral
filters into the optical path of the detector array, provides the
infrared channel definition.

PRODUCTS, RESOLUTION AND ACCURACY
              RESOLUTION (km)         ACCURACY
                Vert.   Horiz.     Absolute  Relative
PRODUCT
 TEMPERATURE
  Profile       3-5     50           2-3 K      1 K
  Land          ---     10            2 K       1 K
  Sea           ---     10            1 K     0.5 K
 MOISTURE
  Profile       2-4     50            30%       20%
  Total         ---     10            20%       10%
  Motion      3 layers  50          6 m/sec    3 m/sec
 CLOUD
  Height      2 layers  10            50 mb     25 mb
  Amount        total   10            15%        5%
 OZONE*
  Total         ---     50            30%       15%
  Motion       1 layer  50          10 m/sec   5 m/sec
IR Flux*        total   50          10 W/m^2   3 W/m^2
KEY: * = potential future product

GOES 8 information is available at:
http://www.oso.noaa.gov/goes/


Group: Platform_Details
   Entry_ID: GOES-8
   Group: Platform_Identification
      Platform_Category: Earth Observation Satellites
      Platform_Series_or_Entity: GOES (Geostationary Operational Environmental Satellite)
      Short_Name: GOES-8
      Long_Name: Geostationary Operational Environmental Satellite 8
   End_Group
   Group: Synonymous_Platform_Names
      Short_Name: GOES I
      Short_Name: GOES-NEXT
      Short_Name: 23051
   End_Group
   Group: Platform_Associated_Instruments
      Short_Name: SXM
      Short_Name: VAS
      Short_Name: GOES I-M IMAGER
      Short_Name: GOES I-M SOUNDER
      Short_Name: EPM
   End_Group
   Group: Orbit
      Orbit_Type: GEO > Geosynchronous > Geostationary
   End_Group
   Creation_Date: 2007-10-04
   Online_Resource: http://www.oso.noaa.gov/goes/
   Online_Resource: http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1994-022A
   Online_Resource: http://goes.gsfc.nasa.gov/
   Group: Platform_Logistics
      Launch_Date: 1994-04-13
      Launch_Site: CAPE CANAVERAL/KENNEDY SPACE CENTER, USA
      Primary_Sponsor: USA/NASA
      Primary_Sponsor: USA/NOAA
   End_Group
End_Group"""@en ;
  skos:altLabel "GOES-8 (GEOSTATIONARY OPERATIONAL ENVIRONMENTAL SATELLITE-8)"@en ;
  skos:prefLabel "GOES-8"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/e31e924e-9e50-4856-b85d-862ee3d084a4> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/e31e924e-9e50-4856-b85d-862ee3d084a4>
  skos:prefLabel "GOES (Geostationary Operational Environmental Satellite)"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/64fabc3c-0684-4325-9831-bf7cc461684d> .

