First version of the evolved Ariane 5. The solid booster motors have the propellant load increased by 2.43 tonnes while the case was now welded, for a weight saving in dry mass of 1.9 tonnes. The core was powered by the improved Vulcain 2 engine. The oxygen-rich cycle of the engine allow the oxygen bulkhead to be moved within the stage, resulting in 15.2 tonnes increase in propellant in the core. A new Lox/LH2 upper stage, using the HM7B engine and oxygen tank from the Ariane 4 series, replaced the storable propellant EPS stage of earlier models. The result was an increase in payload to geoscynchronous transfer orbit from 6 tonnes to 10.5 tonnes.

Manufacturer: EADS. Launches: 12. Failures: 1. Success Rate: 91.67%. First Launch Date: 2002-12-11. Last Launch Date: 2007-05-04. Launch data is: continuing. LEO Payload: 16,000 kg (35,000 lb). to: 407 km Orbit. at: 51.60 degrees. Payload: 10,500 kg (23,100 lb). to a: Geosynchronous transfer, 7 deg inclination trajectory. Associated Spacecraft: Eurostar 2000, Spacebus 3000. Liftoff Thrust: 15,360.000 kN (3,453,060 lbf). Total Mass: 777,000 kg (1,712,000 lb). Core Diameter: 5.40 m (17.70 ft). Total Length: 59.00 m (193.00 ft).

• Stage Number: 0. 2 x Stage: Ariane 5 EAP. Gross Mass: 278,330 kg (613,610 lb). Empty Mass: 38,200 kg (84,200 lb). Thrust (vac): 6,470.000 kN (1,454,510 lbf). Isp: 275 sec. Burn time: 130 sec. Isp(sl): 250 sec. Diameter: 3.05 m (10.00 ft). Span: 3.05 m (10.00 ft). Length: 31.60 m (103.60 ft). Propellants: Solid. No Engines: 1. Engine: P241. Other designations: P241. Status: In development. Increased propellant loading (+2.43 tonnes), lighter welded case (-1.6 tonnes) compared to earlier versions.

• Stage Number: 1. 1 x Stage: Ariane 5 EPC. Gross Mass: 186,000 kg (410,000 lb). Empty Mass: 12,700 kg (27,900 lb). Thrust (vac): 1,114.000 kN (250,437 lbf). Isp: 434 sec. Burn time: 650 sec. Isp(sl): 335 sec. Diameter: 5.46 m (17.91 ft). Span: 5.46 m (17.91 ft). Length: 30.50 m (100.00 ft). Propellants: Lox/LH2. No Engines: 1. Engine: Vulcain 2. Other designations: H173. Status: In development. 15.2 tonnes increased propellant by moving liquid oxygen bulkhead.

• Stage Number: 2. 1 x Stage: Ariane 5 ESC A. Gross Mass: 16,500 kg (36,300 lb). Empty Mass: 2,100 kg (4,600 lb). Thrust (vac): 64.700 kN (14,545 lbf). Isp: 446 sec. Burn time: 960 sec. Diameter: 5.46 m (17.91 ft). Span: 5.46 m (17.91 ft). Length: 9.00 m (29.50 ft). Propellants: Lox/LH2. No Engines: 1. Engine: HM7-B. Status: In production. Uses engine and oxygen tank from Ariane 4 + new liquid hydrogen tank.

2002 December 11 - Launch Site: Kourou. Launch Complex: ELA3. Launch Vehicle: Ariane 5 EC-A. Model: Ariane 5 EC-A. LV Configuration: Ariane 5ECA s/n V157. FAILURE: The Ariane 5 core's Vulcain-2 engine begain failing at T+178 seconds. The rocket veered off course and the destruct signal was sent.

• Hot Bird 7 Nation: Europe. Program: Eutelsat. Mass: 3,350 kg (7,380 lb). Class: Communications. Spacecraft: Eurostar 2000. Agency: Eutelsat. Manufacturer: Astrium. COSPAR: F20021211A. Maiden flight of Ariane 5 EC-A. Delayed from October, November 20 and 28. Hot Bird 7, a Eutelsat geostationary communications satellite, was lost in the failed first flight of the Ariane 5 EC-A. Value of the lost satellite was Euro 250 million. References: 4, 552, 554.

• Stentor Nation: France. Program: Eutelsat. Payload: Modified Spacebus 3000. Mass: 2,210 kg (4,870 lb). Class: Communications. Spacecraft: Spacebus 3000. Agency: Eutelsat (France). Manufacturer: Astrium. COSPAR: F20021211B. Maiden flight of Ariane 5 EC-A. Delayed from October, November 20 and 28. Stentor, a French experimental geostationary direct broadcast communications satellite, was lost in the failed first flight of the Ariane 5 EC-A. Value of the lost satellite was Euro 388 million.References: 4, 552, 554.

• XTAR-EUR Nation: Spain. Mass: 3,631 kg (8,004 lb). Class: Communications. Spacecraft: FS-1300. Manufacturer: Space Systems/Loral. Perigee: 35,778 km (22,231 mi). Apogee: 35,794 km (22,241 mi). Inclination: 0.10 deg. Period: 1,436.10 min. COSPAR: 2005-005A. USAF Sat Cat: 28542. Return to flight of Ariane 5 EC-A after booster failure on first launch. Delayed from April, June, September 28, October 28, November 3 and 8, 2004; and February 11, 2005. XTAR-EUR was a Spanish X-band military communications satellite operated by Hisdesat/XTAR of Spain. It had a dry mass of 1412 kg and 2219 kg of propellant. As of 2007 Mar 8 located at 28.95E drifting at 0.006W degrees per day.

• Maqsat-B2 Nation: Europe. Mass: 3,622 kg (7,985 lb). Class: Technology. Manufacturer: Kayser-Threde. Perigee: 258 km (160 mi). Apogee: 35,409 km (22,002 mi). Inclination: 6.70 deg. Period: 624.90 min. COSPAR: 2005-005B. USAF Sat Cat: 28543. Maqsat was a test payload built by Kayser-Threde to study the Ariane 5ECA launch environment. Remained attached to the upper stage.

• SLOSHSAT Nation: Netherlands. Payload: SLOSHSAT-FLEVO. Mass: 127 kg (279 lb). Class: Technology. Perigee: 268 km (166 mi). Apogee: 35,723 km (22,197 mi). Inclination: 6.80 deg. Period: 631.20 min. COSPAR: 2005-005C. USAF Sat Cat: 28544. Test satellite to study the sloshing of fluids in zero gravity, developed by the Netherlands Aerospace Laboratory. Equipped with a tank with 33.5 liters of water and an attitude control system.

• Telkom 2 Nation: Indonesia. Mass: 1,975 kg (4,354 lb). Class: Communications. Spacecraft: Star bus. Agency: PT Telkom. Perigee: 35,781 km (22,233 mi). Apogee: 35,794 km (22,241 mi). Inclination: 0.10 deg. Period: 1,436.20 min. COSPAR: 2005-046A. USAF Sat Cat: 28902. Satellite's launch delayed from April 14, May 31, October 27, November 10 and 12, 2005, for technical problems. As of 2007 Mar 11 located at 118.00E drifting at 0.013W degrees per day.

• Spaceway 2 Nation: USA. Program: DirecTV. Mass: 6,116 kg (13,483 lb). Class: Communications. Spacecraft: HS 702. Agency: DirecTV. Manufacturer: Boeing Satellite Systems. Perigee: 29,361 km (18,244 mi). Apogee: 42,121 km (26,172 mi). Inclination: 0.20 deg. Period: 1,433.80 min. COSPAR: 2005-046B. USAF Sat Cat: 28903. Heaviest total commercial GTO payload to that date. Qualification flight for the Ariane 5 EC-A version. Launch delayed from June 25 due to launch vehicle problems. Spaceway 2 launch delayed from April for problems with the satellite. As of 2007 Mar 10 located at 99.24W drifting at 0.010W degrees per day.

• Spainsat Nation: Spain. Payload: LS-1300. Mass: 3,683 kg (8,119 lb). Class: Communications. Spacecraft: FS-1300. Agency: Hisdesat. Manufacturer: SS/Loral. Perigee: 35,777 km (22,230 mi). Apogee: 35,797 km (22,243 mi). Inclination: 0.00 deg. Period: 1,436.10 min. COSPAR: 2006-007A. USAF Sat Cat: 28945. Spainsat was to provide secure X and Ku band communications for the Spanish defense ministry. It had a dry mass of 1467 kg and a solar panel span of 31.4m. As of 2007 Mar 10 located at 29.99W drifting at 0.010W degrees per day.

• Hot Bird 7A Nation: Europe. Program: Eutelsat. Payload: SB-3000B3. Mass: 4,100 kg (9,000 lb). Class: Communications. Spacecraft: Spacebus 3000. Agency: Eutelsat. Manufacturer: Alcatel Alenia Space. Perigee: 35,767 km (22,224 mi). Apogee: 35,806 km (22,248 mi). Inclination: 0.30 deg. Period: 1,436.10 min. COSPAR: 2006-007B. USAF Sat Cat: 28946. Hot Bird 7A had a dry mass of 1740 kg and a solar panel span of 36.9m. As of 2007 Mar 9 located at 13.03E drifting at 0.010E degrees per day.

• Satmex 6 Nation: Mexico. Payload: LS-1300. Mass: 5,465 kg (12,048 lb). Class: Communications. Spacecraft: FS-1300. Agency: SatMex. Manufacturer: SS/Loral. Perigee: 35,780 km (22,230 mi). Apogee: 35,794 km (22,241 mi). Inclination: 0.00 deg. Period: 1,436.10 min. COSPAR: 2006-020A. USAF Sat Cat: 29162. The satellite had a dry mass of 2310 kg and a hybrid C-band and Ku-band telecom payload for telecom and internet service in Mexico and the rest of North and Latin America As of 2007 Mar 11 located at 113.03W drifting at 0.002W degrees per day.

• Thaicom 5 Nation: Thailand. Payload: SB-3000. Mass: 2,766 kg (6,097 lb). Class: Communications. Spacecraft: Spacebus 3000. Agency: Shin. Manufacturer: Alcatel Alenia Space. Perigee: 35,388 km (21,989 mi). Apogee: 36,036 km (22,391 mi). Inclination: 0.10 deg. Period: 1,432.30 min. COSPAR: 2006-020B. USAF Sat Cat: 29163. The satellite had a dry mass of 1220 kg and a payload designed for C/Ku-band telecom and TV transmission in the Asia-Pacific Region. It was to replace Thaicom 3. As of 2007 Mar 10 located at 78.52E drifting at 0.004W degrees per day.

• JCSAT 10 Nation: Japan. Payload: AS2100AX. Mass: 4,048 kg (8,924 lb). Class: Communications. Spacecraft: AS 2100. Agency: JSAT. Manufacturer: Lockheed Martin. Perigee: 35,781 km (22,233 mi). Apogee: 35,793 km (22,240 mi). Inclination: 0.00 deg. Period: 1,436.10 min. COSPAR: 2006-033A. USAF Sat Cat: 29272. Ku/C-band television broadcasting satellite for the Japanese market; mass 1858 kg dry. As of 2007 Mar 11 located at 128.01E drifting at 0.012W degrees per day.

• Syracuse 3B Nation: France. Payload: Spacebus 4000B3. Mass: 3,750 kg (8,260 lb). Class: Communications. Type: Military. Spacecraft: Spacebus 4000. Agency: DGA. Manufacturer: Alcatel Alenia Space. Perigee: 35,777 km (22,230 mi). Apogee: 35,796 km (22,242 mi). Inclination: 0.00 deg. Period: 1,436.10 min. COSPAR: 2006-033B. USAF Sat Cat: 29273. SHF and EHF military communications links for the French military. As of 2007 Mar 9 located at 5.21W drifting at 0.004W degrees per day.

• DirecTV 9S Nation: USA. Program: DirecTV. Class: Communications. Spacecraft: FS-1300. Agency: DirecTV. Manufacturer: SS/Loral. Perigee: 35,774 km (22,228 mi). Apogee: 35,798 km (22,243 mi). Inclination: 0.00 deg. Period: 1,436.10 min. COSPAR: 2006-043A. USAF Sat Cat: 29494. Addition to DirecTV's direct broadcast television constellation. Carried 52 high-power Ku-band transponders and 2 Ka-band transponders. As of 2007 Mar 11 located at 101.13W drifting at 0.009W degrees per day.

• Optus D1 Nation: Australia. Payload: Star-2. Class: Communications. Spacecraft: Star bus. Agency: Optus. Manufacturer: Orbital. Perigee: 35,775 km (22,229 mi). Apogee: 35,797 km (22,243 mi). Inclination: 0.0400 deg. Period: 1,436.09 min. COSPAR: 2006-043B. USAF Sat Cat: 29495. Direct television broadcast to the Australian market. As of 2007 Mar 7 located at 159.99E drifting at 0.005W degrees per day.

• LDREX 2 Nation: Japan. Class: Technology. Agency: JAXA. COSPAR: 2006-043C. USAF Sat Cat: 29496. LDREX-2 was attached to the upper stage. It deployed a 6.5-meter antenna design planned for the later ETS-8 satellite

• WildBlue 1 Nation: USA. Mass: 4,735 kg (10,438 lb). Class: Communications. Spacecraft: FS-1300. Manufacturer: SS/Loral. Perigee: 35,780 km (22,230 mi). Apogee: 35,792 km (22,240 mi). Inclination: 0.0200 deg. Period: 1,436.08 min. COSPAR: 2006-054A. USAF Sat Cat: 29643. Broadband internet satellite, using the Ka-band satellite. Dry mass 2000 kg. At separation of the Ariane core the stack was in a -1282 km x 233 km x 6.9 deg suborbital trajectory. The ESC-A upper stage fired to put the satellites in a geostationary transfer orbit of 265 km x 35700 km x 2.0 deg. As of 2007 Mar 11 located at 111.14W drifting at 0.004W degrees per day.

• AMC 18 Nation: USA. Mass: 2,081 kg (4,587 lb). Class: Communications. Spacecraft: AS 2100. Manufacturer: Lockheed Martin. Perigee: 35,783 km (22,234 mi). Apogee: 35,789 km (22,238 mi). Inclination: 0.0100 deg. Period: 1,436.09 min. COSPAR: 2006-054B. USAF Sat Cat: 29644. C-band cable television distribution satellite with a dry mass of 918 kg. As of 2007 Mar 11 located at 104.94W drifting at 0.006W degrees per day.

• Insat 4B Nation: India. Program: Insat. Mass: 3,035 kg (6,691 lb). Class: Communications. Spacecraft: Insat 3. Agency: ISRO. Manufacturer: ISRO. COSPAR: 2007-007A. USAF Sat Cat: 30793. ISRO communications satellite with C and Ku band channels, and a dry mass of 1335 kg

• Skynet 5A Nation: UK. Mass: 4,635 kg (10,218 lb). Class: Communications. Type: Military. Spacecraft: Eurostar 3000. Agency: Paradigm. Manufacturer: EADS Astrium. Perigee: 35,772 km (22,227 mi). Apogee: 35,800 km (22,200 mi). Inclination: 0.10 deg. Period: 1,436.10 min. COSPAR: 2007-007B. USAF Sat Cat: 30794. Skynet 5A was launched by Paradigm Secure Communications as part of its turnkey contract to provide a secure communications satellite network to the British military and NATO.

• Astra 1L Nation: Luxembourg. Program: Astra. Payload: A2100AX. Mass: 4,497 kg (9,914 lb). Class: Communications. Spacecraft: AS 2100. Agency: SES Astra. Manufacturer: Lockheed Martin. Perigee: 35,784 km (22,235 mi). Apogee: 35,788 km (22,237 mi). Inclination: 0.10 deg. Period: 1,436.00 min. COSPAR: 2007-016A. USAF Sat Cat: 31306. Astra 1L provided direct-to-home broadcast services to Europe from its location at 19.2º East. It also strengthened the SES in-orbit backup system, extended fleet coverage from the Canary Islands eastwards up to the Russian border, and allowed Astra 2C to be moved from 19.2º East to 28.2º to fulfill high capacity demand from the U.K. and Ireland. Astra 1L was equipped with 29 Ku + 2 Ka active transponders, which would be reduced to 27 active transponders after its first five years of operation.

• Galaxy 17 Nation: USA. Program: Galaxy. Payload: SB-3000B3. Mass: 4,100 kg (9,000 lb). Class: Communications. Spacecraft: Spacebus 3000. Agency: Intelsat. Manufacturer: Thales Alenia Space. Perigee: 35,785 km (22,235 mi). Apogee: 35,789 km (22,238 mi). Inclination: 0.10 deg. Period: 1,436.10 min. COSPAR: 2007-016B. USAF Sat Cat: 31307. C/Ku-band satellite for cable television relay in the United States.

• Spaceway 3 Nation: USA. Mass: 6,075 kg (13,393 lb). Class: Communications. Spacecraft: HS 702. Agency: Hughes Network Systems. Manufacturer: Boeing Satellite Systems. Perigee: 26,629 km (16,546 mi). Apogee: 44,893 km (27,895 mi). Inclination: 0.20 deg. Period: 1,434.80 min. COSPAR: 2007-036A. USAF Sat Cat: 32018. Satellite launched for Hughes Network Systems, with a Ka-band payload for space-based internet. Mass 3655 kg dry.

• BSAT-3A Nation: Japan. Payload: A2100A. Mass: 1,967 kg (4,336 lb). Class: Communications. Spacecraft: AS 2100. Agency: BSAT. Manufacturer: Lockheed Martin. Perigee: 35,746 km (22,211 mi). Apogee: 35,826 km (22,261 mi). Inclination: 0.10 deg. Period: 1,436.00 min. COSPAR: 2007-036B. Satllite launched for the Japan Broadcasting Satellite Systems Corp. (BSAT) with a Ku-band television payload. Mass 930 kg dry.