@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/65cb3e7c-d4d8-46df-a5fc-aec63e58e8df>
  skos:prefLabel "ESSA"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/c7706afe-079a-4966-8a9e-6a688ca9b880> .

<https://gcmd.earthdata.nasa.gov/kms/concept/c7706afe-079a-4966-8a9e-6a688ca9b880>
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/65cb3e7c-d4d8-46df-a5fc-aec63e58e8df> ;
  skos:changeNote """2018-11-14 10:37:23.0 [sritz]  
update AltLabel (Environmental Science Services Administration 3); 
""", """2018-10-30 11:44:45.0 [sritz] Rename Concept 
update PrefLabel (ESSA-3); 
""", """2018-11-14 10:38:27.0 [sritz]  
update AltLabel (Environmental Science Services Administration Satellite 3); 
""", """2018-11-14 10:42:28.0 [sritz]  
insert AltLabel (id: null
category: null
text: TOS-A
language code: en); 
""", """2018-10-30 11:43:43.0 [sritz] Insert Concept 
add broader relation (ESSA--3 [c7706afe-079a-4966-8a9e-6a688ca9b880,368195] - ESSA [65cb3e7c-d4d8-46df-a5fc-aec63e58e8df,345109]); 
""", """2018-11-14 10:37:02.0 [sritz]  
insert AltLabel (id: null
category: primary
text: Environmental Science Services Administration
language code: en); 
insert AltLabel (id: null
category: null
text: TOS-E
language code: en); 
""", """2018-10-30 13:00:59.0 [sritz]  
insert Definition (id: null
text: ESSA-3 satellite replaced ESSA-1. It provided cloud-cover photography to the US's National Meteorological Center for the purpose of preparing weather analyses and forecasts. The spacecraft was designed and configured exactly the same as NIMBUS-1. The total weight of the spacecraft was 912 pounds.

The spacecraft was an 18-sided polygon, 42 inches in diameter, 22 inches high and weighed 320 pounds; it was made of aluminum alloy and stainless steel, then covered with 9100 solar cells. The solar cells served to charge the 63 nickel-cadmium batteries.
The two cameras were mounted 180-degrees opposite each other along the side of the cylindrical craft. The "cartwheel" configuration of the TIROS-9 was selected as the orbital configuration for the ESSA satellites. Therefore, a camera could be pointed at some point on Earth every time the satellite rotated along its axis. The spacecraft operating system was the same as on the TIROS-9. The craft was placed in its planned Sun-synchronous 101 degree inclination retrograde orbit. The ESSA-3 system transmitted images covering 2000-square mile areas with 2-mile resolution from every location once per day.

ESSA-3 Stats:

Launch Date:  October 02, 1966
Operational Period: 736 days until deactivated by NASA on December 02, 1968
Launch Vehicle: Thrust Augmented Three-Stage Delta
Launch Site: Vandenberg Air Force Base, CA
Type:    Weather Satellite
language code: en); 
""" ;
  skos:definition """ESSA-3 satellite replaced ESSA-1. It provided cloud-cover photography to the US's National Meteorological Center for the purpose of preparing weather analyses and forecasts. The spacecraft was designed and configured exactly the same as NIMBUS-1. The total weight of the spacecraft was 912 pounds.

The spacecraft was an 18-sided polygon, 42 inches in diameter, 22 inches high and weighed 320 pounds; it was made of aluminum alloy and stainless steel, then covered with 9100 solar cells. The solar cells served to charge the 63 nickel-cadmium batteries.
The two cameras were mounted 180-degrees opposite each other along the side of the cylindrical craft. The "cartwheel" configuration of the TIROS-9 was selected as the orbital configuration for the ESSA satellites. Therefore, a camera could be pointed at some point on Earth every time the satellite rotated along its axis. The spacecraft operating system was the same as on the TIROS-9. The craft was placed in its planned Sun-synchronous 101 degree inclination retrograde orbit. The ESSA-3 system transmitted images covering 2000-square mile areas with 2-mile resolution from every location once per day.

ESSA-3 Stats:

Launch Date:  October 02, 1966
Operational Period: 736 days until deactivated by NASA on December 02, 1968
Launch Vehicle: Thrust Augmented Three-Stage Delta
Launch Site: Vandenberg Air Force Base, CA
Type:    Weather Satellite"""@en ;
  skos:prefLabel "ESSA-3"@en ;
  a skos:Concept ;
  ns0:altLabel [ ] ;
  skos:altLabel "TOS-A"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms> .

