To: Slick who wrote (6823 ) 9/25/1999 2:37:00 AM From: brian h Respond to of 10852
Update for 2:48 a.m. EDT Plus 19 minutes. Burnout of the HM 7B engine on the third stage has occurred as planned. This completes the powered flight for Ariane to carry Telstar 7 into space. Now three minutes away from spacecraft separation. Altitude: 271 km, velocity: 9.96 km/sec. Also, the Libreville tracking station has acquired signal from the rocket --------------------- Update for 2:46 a.m. EDT Plus 17 minutes, 30 seconds. Coming up on cutoff of the third stage in about one minute. All systems reported nominal. Altitude: 208 km, velocity: 9.3 km/sec. --------------------------- Update for 2:44 a.m. EDT Plus 15 minutes, 45 seconds. The Ascension Island tracking station is providing coverage of the mission now. The Ariane rocket is passing out of range from the Natal site. Altitude: 187.9 km, velocity: 8.4 km/sec. --------------------------- Update for 2:43 a.m. EDT Plus 14 minutes. The third stage is still powering the Telstar 7 spacecraft toward orbit. All vehicle parameters are reported normal. Altitude: 198.8 km, velocity: 7.6 km/sec. -------------------------- Update for 2:39 a.m. EDT Plus 10 minutes, 30 seconds. Now in the portion of flight in which the rocket gives up a bit of altitude in order to gain speed. Altitude: 230 km, velocity 6.49 km/sec. ------------ Update for 2:27 a.m. EDT Plus 8 minutes, 30 seconds. The Ariane 4 rocket continues to perform as expected during this morning's launch. Altitude: 224.8 km, velocity: 5.9 km/sec. ----------------------------- Update for 2:36 a.m. EDT Plus 7 minutes. The Natal tracking station in Brazil has acquired signal from Ariane. Telemetry coverage is also continuing from Kourou and Cayenne in French Guiana. Altitude: 198.3 km, velocity: 5.5 km/sec. -------------------- Update for 2:35 a.m. EDT Plus 6 minutes. The second stage has completed its job in this morning's launch and is now jettisoned. The cryogenic third stage now up and burning. Altitude: 167 km, velocity: 5.4 km/sec. --------------------------- Update for 2:34 a.m. EDT Plus 5 minutes. Jettison of the protective payload fairing enclosing the Telstar 7 spacecraft atop the Ariane 44LP rocket has been confirmed. Second stage continues to fire. Altitude: 129 km, velocity: 4.2 km/sec. -------------------------------------------------- Update for 2:33 a.m. EDT Plus 4 minutes. The first stage has been shut down and jettisoned. Stage now falling toward the Atlantic. Meanwhile, second stage ignition has occurred. The Viking 4 engine is scheduled to fire for the next two minutes. Altitude: 94 km; velocity: 23.1 km per second.