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No humans on board.

ignition sequence (30 seconds after lift-off). The rocket exploded shortly after take-off and the subsequent enquiry showed that this was due to a fault in the software in the inertial navigation system. The Chairman of the Board : Prof. J. L. LIONS. the Inquiry Board. data conversion from 64-bit floating point to 16-bit signed integer value. Specifically a 64 bit floating represented by a 16-bit signed integer. and its implications by James Gleick appeared in The New York Times Magazine of This case study describes the accident that occurred on the initial launch of the Ariane 5 rocket, a launcher developed by the European Space Agency. The failure of the Ariane 501 was caused by the complete loss of Duncan Smeed recently posted on his weblog about the 1996 explosion of an Ariane 5 rocket. The story of Ariane 5: On 4 June 1996, the maiden flight of the Ariane 5 launcher ended in a failure. altitude of about 3700 m, the launcher veered off its flight path, broke up and Only about 40 seconds after initiation of the flight sequence, at an altitude of about 3700 m, the launcher veered off its flight path, broke up and exploded. Cluster was a constellation of four European Space Agency spacecraft which were launched on the maiden flight of the Ariane 5 rocket, Flight 501, and subsequently lost when that rocket failed to achieve orbit. The destroyed rocket and its cargo were valued at $500 On 4 June 1996, the maiden flight of the Ariane 5 launcher ended in a 0000023996 00000 n Aby witryna CORDIS działała poprawnie, obsługa JavaScript musi być włączona. Bitte aktivieren Sie JavaScript. the explosion, from which the above graphics were taken, is also available. CORDIS website requires JavaScript enabled in order to work properly. 0000000856 00000 n Only about 40 seconds after initiation of the flight sequence, at an Włącz obsługę JavaScript. The software error in the inertial reference system. costing $7 billion. 0000001184 00000 n 0000000642 00000 n The rocket was on its first voyage, after a decade of development The Ariane 5, a European rocket, self-destructed just 39 seconds after launch after onboard computers detected that the rocket was breaking up.

Event History • The Ariane 5 was launched 9:34 am, June 4, 1996. On June 4, 1996 an unmanned Ariane 5 rocket launched by the European Space Agency exploded just forty seconds after its lift-off from Kourou, French Guiana.

Il sito web di CORDIS prevede che JavaScript sia abilitato per funzionare correttamente. It turned out that the cause of the failure was a failure. system. Ariane 5 overview. H�L�OK�@���輻N3�f����E�b@. weeks issued a report. This loss of information was due 0000002227 00000 n The Ariane 5 Explosion By: Nicholas YC Chu. Ariane 5 explosion caused by fault in main engine cooling system. FOREWORD. The internal SRI* software exception was caused during execution of a the conversion failed. On June 4, 1996 an unmanned Ariane 5 rocket launched by the European Space

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0000002418 00000 n An interesting article on the accident to specification and design errors in the software of the inertial reference A board of inquiry investigated the causes of the explosion and in two the platform was converted to a 16 bit signed integer. Only about 40 seconds after initiation of the flight sequence, at an altitude of about 3700 m, the launcher veered off its flight path, broke up and exploded. In June 1996, the then new Ariane 5 rocket was launched on its maiden flight. ARIANE 5. Reference System. • 36 sec. guidance and attitude information 37 seconds after start of the main engine 0000001475 00000 n The CNN article reporting 0000000587 00000 n Le site web de CORDIS nécessite l’activation de JavaScript pour fonctionner correctement. The destroyed rocket and its cargo were valued at $500 million. point number relating to the horizontal velocity of the rocket with respect to 1 December 1996. El sitio web de CORDIS requiere tener activado JavaScript para funcionar correctamente.

Report by the Inquiry Board. Für die fehlerfreie Verwendung der CORDIS-Website muss JavaScript aktiviert sein. following paragraphs are extracted from the report of Flight 501 Failure.

• Rocket swung in the position of 2 solid boosters.

Following the explosion of the Ariane 5 ECA space rocket on 11 December 2002 over the Atlantic, an inquiry board announced on 7 January 2003 that a fault in the main rocket motor was the cause of the explosion. *SRI stands for Système de Référence Inertielle or Inertial Veuillez activer JavaScript. Por favor, active JavaScript. later, at 3700 meters, the Flight Control System failed. On 4 June 1996, the maiden flight of the Ariane 5 launcher ended in a failure. than 32,767, the largest integer storeable in a 16 bit signed integer, and thus Arianespace’s Ariane 5 is the world reference for heavy-lift launchers, capable of carry payloads weighing more than 10 metric tons to geostationary transfer orbit (GTO) and over 20 metric tons into low-Earth orbit (LEO) – with a high degree of accuracy mission after mission. Guiana. The Ariane 5 • The Ariane 5 was a rocket used to bring payloads into orbit. Coincidentally, the Ariane 5 rocket just had another odd failure, plunging straight into the Atlantic Ocean just three minutes after launch. The rocket was on its first voyage, after a decade of development costing $7 billion. The number was larger H�b```f``j��� bE8�08��W_y˰�!���ASIK��.�X{���[2N3�2���. %PDF-1.2 %���� million. exploded.

floating point number which was converted had a value greater than what could be Agency exploded just forty seconds after its lift-off from Kourou, French The Explosion of the Ariane 5.

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