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{{Short description|United States military satellite}}
{{Use American English|date=March 2021}}
{{Use American English|date=March 2021}}
{{Use dmy dates|date=March 2021}}
{{Use dmy dates|date=March 2021}}
{{Infobox spaceflight
{{Infobox spaceflight
| name = USA-282
| name = USA-282
| names_list = SBIRS GEO-4<br/>Space-Based Infrared System GEOstationary
| names_list = SBIRS GEO-4 (SV-3)<br/>Space-Based Infrared System GEOstationary-4 <ref name="Gunter"/>
| image =
| image = SBIRS GEO-3.jpg
| image_caption =
| image_caption = SBIRS GEO-4 satellite in orbit
| image_size = 300px
| image_size = 300px


| mission_type = [[Infrared]] [[missile early warning|early warning]]<br/>[[IRINT]]
| mission_type = [[Infrared]] [[missile early warning|early warning]]<br/>[[Measurement and signature intelligence|IRINT]]
| operator = [[United States Air Force]]
| operator = [[United States Air Force]] / [[United States Space Force]]
| COSPAR_ID = [https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=2018-009A 2018-009A]
| COSPAR_ID = 2018-009A
| SATCAT = 43162
| SATCAT = 43162
| website =
| website = https://www.spaceforce.mil/
| mission_duration =
| mission_duration = 12 years (planned)<br/>{{time interval|20 January 2018|show=ymd}} ''(in progress)''


| spacecraft_type = [[SBIRS-GEO]]
| spacecraft = SBIRS GEO-4
| spacecraft_type = [[Space-Based Infrared System|SBIRS GEO]]
| spacecraft_bus = [[Lockheed Martin A2100|A2100M]]
| spacecraft_bus = [[Lockheed Martin A2100|A2100M]]
| manufacturer = [[Lockheed Martin]]
| manufacturer = [[Lockheed Martin Space]]
| launch_mass =
| launch_mass = {{cvt|4500|kg}}
| dry_mass =
| dry_mass =
| dimensions =
| dimensions = 15 m x 6.7 m x 6.1 m
| power =
| power =


| launch_date = 20 January 2018, 00:48 [[Coordinated Universal Time|UTC]] <ref name="spaceflightnow">{{cite web|url=http://spaceflightnow.com/2018/01/20/u-s-military-satellite-launched-to-fortify-against-missile-attacks|title=U.S. military satellite launched to fortify against missile attacks|last1=Clark|first1=Stephan|date=20 January 2018|publisher=Spaceflight Now|access-date=20 January 2018}}</ref>
| launch_date = 20 January 2018, 00:48 [[Coordinated Universal Time|UTC]]<ref name="SFN20180120">{{cite web|url=http://spaceflightnow.com/2018/01/20/u-s-military-satellite-launched-to-fortify-against-missile-attacks|title=U.S. military satellite launched to fortify against missile attacks|publisher=Spaceflight Now|date=20 January 2018|access-date=16 May 2021}}</ref>
| launch_rocket = [[Atlas V]] 411 (AV-076)
| launch_rocket = [[Atlas V]] 411 (AV-076)
| launch_site = [[Cape Canaveral Space Force Station|Cape Canaveral]] (CCAFS), [[Cape Canaveral Space Launch Complex 41|SLC-41]]
| launch_site = [[Cape Canaveral Space Force Station|Cape Canaveral]] (CCAFS),<br/>[[Cape Canaveral Space Launch Complex 41|SLC-41]]
| launch_contractor = [[United Launch Alliance]] (ULA)
| launch_contractor = [[United Launch Alliance]] (ULA)


Line 31: Line 33:
| disposal_type =
| disposal_type =
| deactivated =
| deactivated =
| last_contact =
| last_contact =


| orbit_reference = [[Geocentric orbit]]
| orbit_reference = [[Geocentric orbit]]
Line 37: Line 39:
| orbit_longitude =
| orbit_longitude =
| apsis = gee
| apsis = gee

| instruments = 2 SBIRS infrared sensors


| insignia =
| insignia =
Line 44: Line 48:
| programme = [[Space-Based Infrared System|Space-Based Infrared System program]]
| programme = [[Space-Based Infrared System|Space-Based Infrared System program]]
| previous_mission = [[USA-273|SBIRS GEO-3]]
| previous_mission = [[USA-273|SBIRS GEO-3]]
| next_mission = [[SBIRS Geo-5]]
| next_mission = [[SBIRS GEO-5]]

}}
}}


'''USA-282''', also known as '''SBIRS GEO-4''',<ref name="NSF20180119">{{cite web|url=https://www.nasaspaceflight.com/2018/01/atlas-v-sbirs-geo-4-launch-cape-canaveral/|title=Atlas V launches with SBIRS GEO-4 |publisher=NASASpaceFlight.com|date=19 January 2018|access-date=17 May 2021}}</ref><ref name="Gunter">{{cite web|url=https://space.skyrocket.de/doc_sdat/sbirs-geo-1.htm|title=SBIRS GEO-1, -2, -3, -4 |publisher=Gunter's Space Page|date=4 November 2020|access-date=16 May 2021}}</ref> is a [[United States]] [[military satellite]] and part of the [[Space-Based Infrared System]].
⚫
'''USA-282''', also known as '''SBIRS GEO-4''', is an [[United States|American]] [[military satellite]] and part of the [[Space-Based Infrared System]]. It was launched on 20 January 2018 from [[Cape Canaveral Space Force Station|Cape Canaveral]] (CCAFS), atop an [[Atlas V]] [[launch vehicle]].


== Overview ==
== Overview ==
The SBIRS program was designed to provide a seamless operational transition from DSP to SBIRS and meet jointly-defined requirements of the defense and intelligence communities in support of the missile early warning, missile defense, battlespace awareness and technical intelligence mission areas.<ref name="USSF">{{cite web|url=https://www.spaceforce.mil/About-Us/Fact-Sheets/Article/2197746/space-based-infrared-system/|title=Fact Sheets: Space Based Infrared System|publisher=USSF|date=October 2020|access-date=16 May 2021}} {{PD-notice}}</ref>
⚫
The SBIRS satellites are a replacement for the [[Defense Support Program]] [[early warning system]]. They are intended to detect [[ballistic missile]] launches, as well as various other events in the [[infrared]] spectrum, including [[nuclear explosion]]s, [[aircraft]] flights, space object [[atmospheric entry|entries]] and reentries, [[wildfire]]s and [[space launch|spacecraft launches]].


⚫
The SBIRS satellites are a replacement for the [[Defense Support Program]] (DSP) early warning system. They are intended to detect [[ballistic missile]] launches, as well as various other events in the [[infrared]] spectrum, including [[nuclear explosion]]s, [[aircraft]] flights, space object [[atmospheric entry|entries]] and reentries, [[wildfire]]s and [[space launch|spacecraft launches]].
⚫
SBIRS GEO-4 was manufactured by [[Lockheed Martin]] and is built upon the [[Lockheed Martin A2100|A2100M]] [[satellite bus]]. The Atlas V launch vehicle used for SBIRS GEO-4 flew with a [[Booster (rocketry) |strap-on booster]], a different configuration from the previous three SBIRS-GEO launches. This was done as part of a [[space debris mitigation]] effort, to allow the [[Centaur (rocket stage)|Centaur]] upper stage to preserve sufficient fuel for a [[deorbit|deorbit burn]].<ref name="spacenews">{{cite web|url=http://spacenews.com/air-force-missile-warning-command-center-makes-contact-with-new-sbirs-satellite |title=Air Force missile-warning command center makes contact with new SBIRS satellite|last1=Erwin|first1=Sandra|date=20 January 2018|publisher=SpaceNews|access-date=24 January 2018}}</ref>


== Satellite description ==
⚫
The [[United States Air Force|U.S. Air Force]] announced the satellite was operating as expected and had established initial communication with it.<ref name="spacenews"></ref>
⚫
SBIRS GEO-4 was manufactured by [[Lockheed Martin Space]], at production facility in [[Sunnyvale, California]], and is built upon the [[Lockheed Martin A2100|A2100M]] [[satellite bus]]. The Atlas V launch vehicle used for SBIRS GEO-4 flew with a [[Booster (rocketry)|strap-on booster]], a different configuration from the previous three SBIRS GEO launches. This was done as part of a [[space debris mitigation]] effort, to allow the [[Centaur (rocket stage)|Centaur]] [[Multistage rocket|upper stage]] to preserve sufficient fuel for a [[deorbit|deorbit burn]].<ref name="SN20180120">{{cite web|url=http://spacenews.com/air-force-missile-warning-command-center-makes-contact-with-new-sbirs-satellite|title=Air Force missile-warning command center makes contact with new SBIRS satellite|publisher=SpaceNews|date=20 January 2018|access-date=16 May 2021}}</ref>

== Launch ==
SBIRS GEO-4 was the third geostationary SBIRS satellite to be built, Satellite Vehicle 3 (SV-3). Construction of the satellite was completed before it was required to launch, so the spacecraft was placed into storage. The [[United States Air Force|U.S. Air Force]] later opted to launch Satellite Vehicle 4 (SV-4) first as SBIRS GEO-3, saving the cost of putting the newly-completed SV-4 into storage and additional testing that would be needed upon taking it back out.<ref name="NSF20180119"/>

The Atlas V, with the tail number AV-076, flew in its 411 configuration. This Atlas V configuration differs from the 401 version used for the previous three SBIRS GEO launches – which did not use any [[solid rocket booster]] (SRB). The change of configuration has ostensibly been made to ensure [[Centaur (rocket stage)|Centaur]] can be deorbited after satellite separation, helping to mitigate [[space debris]]. On previous SBIRS GEO launches, Centaur has remained in a disposal orbit, close to [[geostationary transfer orbit]] (GTO), at the end of its mission.<ref name="NSF20180119"/>

⚫
It was launched on 20 January 2018 from [[Cape Canaveral Space Force Station|Cape Canaveral]] (CCAFS), atop an [[Atlas V|Atlas V 411]] [[launch vehicle]].

== Mission ==
⚫
The [[United States Air Force|U.S. Air Force]] announced the satellite was operating as expected and had established initial communications with it.<ref name="SN20180120"/>


== References ==
== References ==
{{Portal|Spaceflight}}
{{Portal|Spaceflight}}
{{Reflist|30em}}
{{Reflist|30em}}

== External links ==
* [http://space.skyrocket.de/doc_sdat/sbirs-high.htm SBIRS GEO-1, -2, -3, -4, -5, -6 at Gunter's Space Page]


{{Orbital launches in 2018}}
{{Orbital launches in 2018}}

Latest revision as of 22:19, 14 May 2022

USA-282
SBIRS GEO-4 satellite in orbit
NamesSBIRS GEO-4 (SV-3)
Space-Based Infrared System GEOstationary-4 [1]
Mission typeInfrared early warning
IRINT
OperatorUnited States Air Force / United States Space Force
COSPAR ID2018-009A Edit this at Wikidata
SATCAT no.43162
Websitehttps://www.spaceforce.mil/
Mission duration12 years (planned)
6 years, 7 months and 10 days (in progress)
Spacecraft properties
SpacecraftSBIRS GEO-4
Spacecraft typeSBIRS GEO
BusA2100M
ManufacturerLockheed Martin Space
Launch mass4,500 kg (9,900 lb)
Dimensions15 m x 6.7 m x 6.1 m
Start of mission
Launch date20 January 2018, 00:48 UTC[2]
RocketAtlas V 411 (AV-076)
Launch siteCape Canaveral (CCAFS),
SLC-41
ContractorUnited Launch Alliance (ULA)
Orbital parameters
Reference systemGeocentric orbit
RegimeGeostationary orbit
Instruments
2 SBIRS infrared sensors

USA-282, also known as SBIRS GEO-4,[3][1] is a United States military satellite and part of the Space-Based Infrared System.

Übersicht

[edit]

The SBIRS program was designed to provide a seamless operational transition from DSP to SBIRS and meet jointly-defined requirements of the defense and intelligence communities in support of the missile early warning, missile defense, battlespace awareness and technical intelligence mission areas.[4]

The SBIRS satellites are a replacement for the Defense Support Program (DSP) early warning system. They are intended to detect ballistic missile launches, as well as various other events in the infrared spectrum, including nuclear explosions, aircraft flights, space object entries and reentries, wildfires and spacecraft launches.

Satellite description

[edit]

SBIRS GEO-4 was manufactured by Lockheed Martin Space, at production facility in Sunnyvale, California, and is built upon the A2100M satellite bus. The Atlas V launch vehicle used for SBIRS GEO-4 flew with a strap-on booster, a different configuration from the previous three SBIRS GEO launches. This was done as part of a space debris mitigation effort, to allow the Centaur upper stage to preserve sufficient fuel for a deorbit burn.[5]

Launch

[edit]

SBIRS GEO-4 was the third geostationary SBIRS satellite to be built, Satellite Vehicle 3 (SV-3). Construction of the satellite was completed before it was required to launch, so the spacecraft was placed into storage. The U.S. Air Force later opted to launch Satellite Vehicle 4 (SV-4) first as SBIRS GEO-3, saving the cost of putting the newly-completed SV-4 into storage and additional testing that would be needed upon taking it back out.[3]

The Atlas V, with the tail number AV-076, flew in its 411 configuration. This Atlas V configuration differs from the 401 version used for the previous three SBIRS GEO launches – which did not use any solid rocket booster (SRB). The change of configuration has ostensibly been made to ensure Centaur can be deorbited after satellite separation, helping to mitigate space debris. On previous SBIRS GEO launches, Centaur has remained in a disposal orbit, close to geostationary transfer orbit (GTO), at the end of its mission.[3]

It was launched on 20 January 2018 from Cape Canaveral (CCAFS), atop an Atlas V 411 launch vehicle.

Mission

[edit]

The U.S. Air Force announced the satellite was operating as expected and had established initial communications with it.[5]

References

[edit]
  1. ^ a b "SBIRS GEO-1, -2, -3, -4". Gunter's Space Page. 4 November 2020. Retrieved 16 May 2021.
  2. ^ "U.S. military satellite launched to fortify against missile attacks". Spaceflight Now. 20 January 2018. Retrieved 16 May 2021.
  3. ^ a b c "Atlas V launches with SBIRS GEO-4". NASASpaceFlight.com. 19 January 2018. Retrieved 17 May 2021.
  4. ^ "Fact Sheets: Space Based Infrared System". USSF. October 2020. Retrieved 16 May 2021. Public Domain This article incorporates text from this source, which is in the public domain.
  5. ^ a b "Air Force missile-warning command center makes contact with new SBIRS satellite". SpaceNews. 20 January 2018. Retrieved 16 May 2021.
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