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AMOS-1 (satellite)

AMOS communications satellite

Field	Value
name	AMOS-1
names_list	Affordable Modular Optimized Satellite-1
Intelsat 24
IS-24
image_size	300px
mission_type	Communications
operator	Spacecom Satellite Communications (1996–2009)
Intelsat (2009–2012)
COSPAR_ID	1996-030B
SATCAT	23865
website	https://www.amos-spacecom.com/satellites/
mission_duration	12 years (planned)
16 years (achieved)
spacecraft	AMOS-1
spacecraft_bus	AMOS Bus
manufacturer	Israel Aerospace Industries
launch_mass	961 kg
dry_mass	580 kg
dimensions	2.33 x 2.39 x 2.07 m
Span: 10.55 m on orbit
power	1380 watts
launch_date	16 May 1996, 01:56:29 UTC
launch_rocket	Ariane 44L H10-3 (V86)
launch_site	Centre Spatial Guyanais, Kourou, ELA-2
launch_contractor	Arianespace
entered_service	1 July 1996
disposal_type	Graveyard orbit
deactivated	July 2012
orbit_reference	Geocentric orbit
orbit_regime	Geostationary orbit
orbit_longitude	4° West (1996–2008)
47.3° East (2009–2011)
31° East (2011–2012)
apsis	gee
trans_band	7 (+ 2 spares) Ku-band
trans_bandwidth	72 MHz
trans_coverage	Europe, Israel, Middle East
programme	AMOS Series
next_mission	AMOS-2
programme2	Intelsat constellation
previous_mission2	Intelsat 11
next_mission2	Intelsat 14

Intelsat 24 IS-24 Intelsat (2009–2012) 16 years (achieved) Span: 10.55 m on orbit 47.3° East (2009–2011) 31° East (2011–2012) AMOS-1, then Intelsat 24, was a commercial communications satellite operated by Spacecom as AMOS-1, for Affordable Modular Optimized Satellite and formed part of the AMOS series of satellites. It was the first Israeli civilian communications satellite, positioned at 4° West longitude in geostationary orbit. Then in September 2011, it was moved to 31° East.

Satellite description

Its development was based on experience from Ofeq reconnaissance satellites in association with DASA and Alcatel Espace. It was used for home television services (DTH/DBS by the "Yes" company in Israel, HBO, and others in Europe). Spacecom succeeded quickly in filling all transmission abilities of AMOS-1 and accumulated additional requests. Therefore, Spacecom decided to build AMOS-2, which replaced AMOS-1 in orbit at 4° West. AMOS-1 carries nine Ku-band transponders.

Weighing 970 kg at launch, AMOS-1 incorporated a 400 newtons liquid apogee motor and fourteen reaction control thrusters, each delivering ten newtons of thrust for raising the satellite's orbit from geostationary transfer orbit (GTO) to its final geostationary orbit as well as for its attitude control. It carried 450 kg of propellant (Monomethylhydrazine and MON-3). AMOS-1 measures 10.55 m in length in its final in-orbit configuration. It is a 3-axis body stabilised using Sun and Earth sensors, momentum and reaction wheels. Its solar array generates 1380 watts power, backed up by 24 A·h nickel–cadmium batteries. Cost: US$250 million. The Israeli government has supported the program since 1991, spending US$15 million annually.

Launch

It was launched on 16 May 1996 from Centre Spatial Guyanais, Kourou in French Guiana, aboard an Ariane 4 launch vehicle flying in the 44L configuration, which launched together with the Indonesian Palapa-C2 satellite using Ariane 4's SPELDA system that can launch two satellites stacked on top of another. After its launch, it was raised to its final geostationary orbit by firing the apogee boost motor in phases. After it reached the geostationary orbit, its antennae and solar panels were deployed and the satellite was placed in its allocated slot at 4° West longitude. AMOS-1 and AMOS-2 were placed near each other to enable satellite users to aim once and reach either satellite from the same antenna. Launch was insured for over US$145 million. The satellite AMOS-1 was operational on 1 July 1996.

Intelsat 24

In 2009, AMOS-1 was sold to Intelsat, and became Intelsat 24 (IS-24). Intelsat moved it over the Middle East, put it into an inclined orbit to conserve fuel, and rented its capacity to Tachyon Networks for U.S. military communications.

References

Jameson, Helen. "Tackling the Challenges of Communication". Global Military Communications.
(28 February 2021). "AMOS 1". The Satellite Encyclopedia.
(26 May 2007). "Amos-1". Spacecom.
(2015-10-12). "AMOS-1 Communications Satellite". Israel Aerospace Industries.
Krebs, Gunter. (18 November 2019). "Amos-1 -> Intelsat 24". Gunter's Space Page.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

satellite-television satellites-using-the-amos-bus communications-satellites-of-israel spacecraft-launched-in-1996 intelsat-satellites 1996-in-israel

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