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{{Use American English|date=April 2021}}
{| class="infobox bordered" style="width: 25em; text-align: left; font-size: 95%;" align=right
{{Use dmy dates|date=April 2021}}
|+ style="font-size: larger;" | '''AMC-18 <ref>[http://www.ses-americom.com/americom/siteSections/satellitesAndTeleports/satelliteFleet/amc18/index.php www.ses-americom.com "Satellite information"]</ref>'''
{{Infobox spaceflight
| name = AMC-18
| names_list = GE-18
| image =
| image_caption =
| image_size = 300px
| mission_type = [[Communications satellite|Communications]]
| operator = [[SES Americom]] (2006–2009)<br/>[[SES World Skies]] (2009–2011)<br/>[[SES (company)|SES]] (2011–present)
| COSPAR_ID = 2006-054B
| SATCAT = 29644
| website = [https://www.ses.com/our-coverage#/explore/satellite/308 SES]
| mission_duration = 15 years (planned)<br/>{{time interval|8 December 2006|show=ymd|sep=,}} (elapsed)
| spacecraft = GE-18
| spacecraft_type = [[Lockheed Martin A2100]]
| spacecraft_bus = [[Lockheed Martin A2100|LM-A2100A]]
| manufacturer = [[Lockheed Martin]]
| launch_mass = {{cvt|2081|kg}}
| dimensions =
| power = <!-- [[watt]]s -->
| launch_date = 8 December 2006, 22:08 [[Coordinated Universal Time|UTC]]<ref name="Launchlog">{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|publisher=Jonathan's Space Page|access-date=1 April 2021}}</ref>
| launch_rocket = [[Ariane 5|Ariane 5ECA]] (VA174)
| launch_site = [[Guiana Space Centre|Centre Spatial Guyanais]], [[ELA-3]]
| launch_contractor = [[Arianespace]]
| entered_service = February 2007
| disposal_type =
| deactivated =
| last_contact =
| orbit_reference = [[Geocentric orbit]]<ref name="N2YO">{{cite web|url=http://www.n2yo.com/satellite/?s=29644|title=AMC-18 2006-054B 29644|publisher=N2YO.com|access-date=1 April 2021}}</ref>
| orbit_regime = [[Geostationary orbit]]
| orbit_longitude = 83° West
| apsis = gee
| trans_band = 24 [[C band (IEEE)|C-band]]
| trans_frequency =
| trans_bandwidth = 36 [[Hertz|MHz]]
| trans_capacity =
| trans_coverage = [[Canada]], [[United States]], [[Mexico]], [[Caribbean]]
| programme = [[SES Americom|SES constellation]]
| previous_mission = [[AMC-16 (satellite)|AMC-16]]
| next_mission = [[AMC-21]]
}}

'''AMC-18''' is a [[geostationary orbit|geostationary]] [[Lockheed Martin]] [[Lockheed Martin A2100|A2100A]] [[communications satellite]] owned by [[SES Americom]]. It was launched on 8 December 2006 from [[Centre Spatial Guyanais]] aboard an [[Ariane 5|Ariane 5 ECA]] [[launch vehicle]] and is situated at 83° West [[longitude]], providing coverage of [[North America]] with twenty-four [[C band (IEEE)|C-band]] [[Transponder (satellite communications)|transponders]] of 12–18 [[watt]]s each. Future users in May 2007 include [[The CW Television Network]], [[NASA TV]] and [[Canadian Broadcasting Corporation]], among other services.

AMC-18 is used by thousands of terrestrial radio stations for [[satellite subcarrier audio|network feeds]] using ground equipment from Starguide, X-Digital Systems, Wegener and International Datacasting. Major tenants are Cumulus Media Networks Satellite Services (which includes Citadel Media, Westwood One Networks, Talk Radio Network, WOR Radio Network and others), Skyview Networks (which includes ABC News, ABC Radio, California News Network, Arizona News Network, numerous Professional and Collegian Sports networks, and others), Orbital Media Networks (which includes United Stations Radio Networks, John Tesh, and others), Premiere Radio Networks, Dial Global, Westwood One, Learfield Communications, The Free Beer and Hot Wings Show, etc.

The spacecraft can deliver and receive signals from 50 states of [[United States]], the [[Caribbean]] and [[Mexico]] and has been designated as the third HD-PRIME satellite. Originally built as a ground spare to the [[AMC-10 (satellite)|AMC-10]] and [[AMC-11]] satellite program, AMC-18 is optimized for [[digital television]] distribution from the center of the U.S. orbital arc.<ref name="SES">{{cite web |url=http://www.ses.com/4628110/amc-18|title=AMC-18|publisher=SES|access-date=5 April 2021}}</ref> The satellite has an expected lifetime of at least 15 years.

== Transponder details ==
{| class="wikitable" style="width: 25em; text-align: left; font-size: 95%;"
|+ style="font-size: larger;" | '''[[C band (IEEE)|C-band]] payload: 24 × 36 [[MHz]]'''
|-
|-
! Spacecraft design:
| [[Lockheed Martin]] [[A2100]]
|-
! Orbital location:
| [[105th meridian west|105° W]] Longitude
|-
! Launch Date:
| [[8 December]] [[2006]]
|-
! Vehicle:
| [[Ariane (rocket)|Ariane 5]]
|-
! Design Life:
| 15 years
|-
| colspan="2" style="font-size: smaller;" | {{{footnotes|}}}
|}

{| class="infobox bordered" style="width: 25em; text-align: left; font-size: 95%;" align=right
|+ style="font-size: larger;" | '''[[C-band]] payload: 24 x 36 [[MHz]]'''
|-
! Amp type
! Amp type
| [[SSPA#Transistor amplifiers|SSPA]], 20 [[watt]]s
| [[Amplifier|SSPA]], 20 [[watt]]s
|-
|-
! Amp Redundancy:
! Amp Redundancy:
| 16 for 12
| 16 for 12
|-
|-
! Receiver redundancy:
! Receiver redundancy:
| 4 for 2
| 4 for 2
|-
|-
! Coverage:
! Coverage:
| 50 state, [[Canada]], [[Mexico]], [[Caribbean]]
| Canada, United States, Mexico, Caribbean
|-
|-
| colspan="2" style="font-size: smaller;" | {{{footnotes|}}}
|}
|}


== References ==
'''AMC-18''' is a [[geostationary orbit|geostationary]] [[Lockheed Martin]] [[A2100A]] [[communications satellite]] owned by [[SES Americom]]. It was launched on [[December 8]], [[2006]] from [[Centre Spatial Guyanais|Kourou]] aboard an [[Ariane 5]] launch vehicle and is situated at [[105th meridian west|105° west]] [[longitude]], providing coverage of North America with twenty-four [[C band]] [[transponder]]s of 12-18 [[watt]]s each. Future users in May 2007 include [[The CW Television Network]] and [[Canadian Broadcasting Corporation]], among other services.
{{Portal|Spaceflight}}
{{Reflist|30em}}


== External links ==
The spacecraft can deliver and receive signals from 50 states, the [[Caribbean]] and [[Mexico]] and has been designated as the third HD-PRIME satellite.
* {{lyngsat|amc18|AMC-18}}
* {{satbeams footprint|5714|AMC-18}}
* [https://web.archive.org/web/20131028213859/http://www.ses.com/4232583/en SES]


{{SES World Skies}}
Originally built as a ground spare to the [[AMC-10 (satellite)|AMC-10]] and [[AMC-11 (satellite)|AMC-11]] satellite program, AMC-18 is optimized for [[digital television]] distribution from the center of the [[U.S.]] orbital arc. <ref>[http://www.ses-americom.com/americom/siteSections/satellitesAndTeleports/satelliteFleet/amc18/index.php www.ses-americom.com "AMC-18"]</ref>
{{Orbital launches in 2006}}

The satellite has an expected lifetime of at least 15 years.

== Glossary ==

{| class=wikitable style="background:white; color:black" width="100%"
|-
| '''Beam edge''' || EIRP, G/T or flux density contour corresponding to the minimum performance over a coverage area.
|-
| '''Beam peak''' || A single point within a coverage area with highest performance (i.e., EIRP, flux density or G/T)
|-
| '''[[dBW]]''' || A decibel referenced to one watt. Expresses units of decibels above 1 W. X (dBW) = 10 log 10 (X / 1W)
|-
| '''[[Downlink]]''' || A transmission link carrying information from a satellite or spacecraft to earth. Typically down links carry telemetry, data and voice.
|-
| '''[[EIRP]]''' || (Effective Isotropic Radiated Power) In a given direction, the [[gain]] of a transmitting [[Antenna (radio)|antenna]] multiplied by the net power accepted by the antenna from the connected transmitter.
|-
| '''[[gain|G]]/[[Johnson–Nyquist noise|T]]''' (antenna gain-to-noise-temperature) || The ratio of the gain to the [[noise temperature]] of the antenna. Usually the antenna-receiver system figure of merit is specified. For this case the [[figure of merit]] is the gain of the antenna divided by the system noise temperature referred to the antenna terminals. The system figure of merit at any reference plane in the RF system is the same as that taken at the antenna terminals since both the gain and system noise temperature are referred to the same reference plane at the antenna terminals.
|-
| '''[[Point of presence]]''' (POP) || A POP is a physical interconnect location where separate telecommunications networks meet and communicate with each other.
|-
| '''[[Polarization]]''' || That property of a radiated electromagnetic wave describing the time-varying direction and amplitude of the electric field vector: specifically, the figure traced as a function of time by the extremity of the vector at a fixed location in space, as observed along the direction of propagation.
|-
| '''Teleport''' || A teleport is a physical location and interface between a satellite system and telecommunications networks on the ground. It includes a variety of satellite dishes, earth stations, and supporting ground equipment.
|-
| '''[[Transponder#Satellite communications|Transponder]]''' || A receiver/transmitter combination which receives a signal and retransmits it at a different carrier frequency. Transponders are used in communication satellites for reradiating signals to earth stations or in spacecraft for returning ranging signals.
|-
| '''[[Uplink]]''' || A ground to satellite link.
|}

==References==
{{reflist}}

==External links==
*{{lyngsat|amc18|AMC-18}}
*{{satbeams footprint|5714|AMC-18}}
*[http://www.ses-americom.com/ SES Americom]


[[Category:Communications satellites in geostationary orbit]]
[[Category:Communications satellites in geostationary orbit]]
[[Category:Satellite television]]
[[Category:Satellite television]]
[[Category:Spacecraft launched in 2006]]
[[Category:SES satellites]]
[[Category:Satellites using the A2100 bus]]


{{communications-satellite-stub}}

{{spacecraft-stub}}

[[de:AMC-18]]
[[pt:AMC 18]]
[[ru:AMC-18]]

Latest revision as of 23:29, 27 April 2024

AMC-18
NamesGE-18
Mission typeCommunications
OperatorSES Americom (2006–2009)
SES World Skies (2009–2011)
SES (2011–present)
COSPAR ID2006-054B Edit this at Wikidata
SATCAT no.29644
WebsiteSES
Mission duration15 years (planned)
17 years, 11 months, 13 days (elapsed)
Spacecraft properties
SpacecraftGE-18
Spacecraft typeLockheed Martin A2100
BusLM-A2100A
ManufacturerLockheed Martin
Launch mass2,081 kg (4,588 lb)
Start of mission
Launch date8 December 2006, 22:08 UTC[1]
RocketAriane 5ECA (VA174)
Launch siteCentre Spatial Guyanais, ELA-3
ContractorArianespace
Entered serviceFebruary 2007
Orbital parameters
Reference systemGeocentric orbit[2]
RegimeGeostationary orbit
Longitude83° West
Transponders
Band24 C-band
Bandwidth36 MHz
Coverage areaCanada, United States, Mexico, Caribbean
← AMC-16
AMC-21 →

AMC-18 is a geostationary Lockheed Martin A2100A communications satellite owned by SES Americom. It was launched on 8 December 2006 from Centre Spatial Guyanais aboard an Ariane 5 ECA launch vehicle and is situated at 83° West longitude, providing coverage of North America with twenty-four C-band transponders of 12–18 watts each. Future users in May 2007 include The CW Television Network, NASA TV and Canadian Broadcasting Corporation, among other services.

AMC-18 is used by thousands of terrestrial radio stations for network feeds using ground equipment from Starguide, X-Digital Systems, Wegener and International Datacasting. Major tenants are Cumulus Media Networks Satellite Services (which includes Citadel Media, Westwood One Networks, Talk Radio Network, WOR Radio Network and others), Skyview Networks (which includes ABC News, ABC Radio, California News Network, Arizona News Network, numerous Professional and Collegian Sports networks, and others), Orbital Media Networks (which includes United Stations Radio Networks, John Tesh, and others), Premiere Radio Networks, Dial Global, Westwood One, Learfield Communications, The Free Beer and Hot Wings Show, etc.

The spacecraft can deliver and receive signals from 50 states of United States, the Caribbean and Mexico and has been designated as the third HD-PRIME satellite. Originally built as a ground spare to the AMC-10 and AMC-11 satellite program, AMC-18 is optimized for digital television distribution from the center of the U.S. orbital arc.[3] The satellite has an expected lifetime of at least 15 years.

Transponder details

[edit]
C-band payload: 24 × 36 MHz
Amp type SSPA, 20 watts
Amp Redundancy: 16 for 12
Receiver redundancy: 4 for 2
Coverage: Canada, United States, Mexico, Caribbean

References

[edit]
  1. ^ "Launch Log". Jonathan's Space Page. Retrieved 1 April 2021.
  2. ^ "AMC-18 2006-054B 29644". N2YO.com. Retrieved 1 April 2021.
  3. ^ "AMC-18". SES. Retrieved 5 April 2021.
[edit]
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