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AIS
The shipborne Automatic Identification System provided the means of tracking maritime traffic from space. AIS became a mandatory international navigation safety communications system under the provisions of the Safety of Life at Sea (SOLAS) Conventions endorsed by the International Maritime Organization (IMO). The Convention required ships of 300 gross tonnage and upwards engaged on international voyages, cargo ships of 500 gross tonnage and upwards not engaged on international voyages, and all passenger ships irrespective of size to be fitted with AIS transponders. AIS signals could be detected by satellites in a low earth orbit and provide a global capability for monitoring all AIS-equipped vessels. AIS receiving capability was built into several satellite constellations, supported by an extensive network of ground stations.



Country: Argentina, Norway, USA.

2004 June 29 - . 06:30 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC109. Launch Pad: LC109/95. LV Family: R-36M. Launch Vehicle: Dnepr.
  • Aprizesat 2 (LatinSat D) - . Mass: 12 kg (26 lb). Nation: Argentina. Agency: Aprize. Program: AIS. Class: Communications. Type: Civilian store-dump communications satellite. Spacecraft: AprizeSat. USAF Sat Cat: 28366 . COSPAR: 2004-025A. Apogee: 853 km (530 mi). Perigee: 695 km (431 mi). Inclination: 98.3000 deg. Period: 100.30 min. Delayed from March. 31.
  • Aprizesat 1 (LatinSat C) - . Mass: 12 kg (26 lb). Nation: Argentina. Agency: Makeyev bureau. Program: AIS. Class: Communications. Type: Civilian store-dump communications satellite. Spacecraft: AprizeSat. USAF Sat Cat: 28372 . COSPAR: 2004-025G. Apogee: 767 km (476 mi). Perigee: 698 km (433 mi). Inclination: 98.3000 deg. Period: 99.50 min.

2009 July 29 - . 18:46 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC109. LV Family: R-36M. Launch Vehicle: Dnepr.
  • Aprizesat 4 - . Mass: 14 kg (30 lb). Nation: Argentina. Agency: Makeyev bureau. Program: AIS. Class: Communications. Type: Communications satellite. Spacecraft: Aprizesat. USAF Sat Cat: 35684 . COSPAR: 2009-041D. Apogee: 677 km (420 mi). Perigee: 607 km (377 mi). Inclination: 98.1000 deg. Period: 97.60 min.
  • Aprizesat 3 - . Mass: 14 kg (30 lb). Nation: Argentina. Agency: Makeyev bureau. Program: AIS. Class: Communications. Type: Communications satellite. Spacecraft: Aprizesat. USAF Sat Cat: 35686 . COSPAR: 2009-041F. Apogee: 677 km (420 mi). Perigee: 566 km (351 mi). Inclination: 98.1000 deg. Period: 97.10 min.

    Part of a planned constellation of 64 of small low-earth-orbit satellites for global data transmission, fixed and mobile asset tracking and monitoring built by Spacequest, Fairfax, Virginia for exactEarth. Included Automatic Identification System receiver to gather position data from ships.


2010 July 12 - . 03:52 GMT - . Launch Site: Sriharikota. Launch Complex: Sriharikota PSLV. Launch Vehicle: PSLV.
  • Aissat 1 - . Mass: 6.00 kg (13.20 lb). Nation: Norway. Agency: ISRO. Program: AIS. Class: Navigation. Type: Navigation satellite. Spacecraft: Toronto GNB. USAF Sat Cat: 36797 . COSPAR: 2010-035C. Apogee: 636 km (395 mi). Perigee: 620 km (380 mi). Inclination: 98.2000 deg. Period: 97.30 min. Satellite-based Automatic Identification System (AIS) payload to track maritime assets worldwide (all vessels over 300 metric tons are equipped with AIS transponders)..

2011 August 17 - . 07:12 GMT - . Launch Site: Dombarovskiy. LV Family: R-36M. Launch Vehicle: Dnepr.
  • Aprizesat 5 - . Mass: 14 kg (30 lb). Nation: USA. Program: AIS. Class: Communications. Type: Communications satellite. Spacecraft: Aprizesat. USAF Sat Cat: 37792 . COSPAR: 2011-044E. Apogee: 697 km (433 mi). Perigee: 610 km (370 mi). Inclination: 98.3000 deg. Period: 97.80 min.

    Aprizesat 5 and 6 were built by SpaceQuest for exactEarth Ltd. Equipped with AIS (maritime Automatic Identification System) payloads for ship location tracking. The exactEarth system also included the SpaceQuest AprizeSat 3 and 4, and a payload attached to ISRO's ResourceSat-2 satellite.

  • Aprizesat 6 - . Mass: 14 kg (30 lb). Nation: USA. Program: AIS. Class: Communications. Type: Communications satellite. Spacecraft: Aprizesat. USAF Sat Cat: 37793 . COSPAR: 2011-044F. Apogee: 698 km (433 mi). Perigee: 627 km (389 mi). Inclination: 98.3000 deg. Period: 98.00 min. Part of a constellation of small LEO satellites for global fixed and mobile asset tracking. Also carried an AIS (Automatic Identification System) receiver monitor naval vessel locations..


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