Re: Lunch Preparations underway.... Global Positioning System 2R-M1 satellite - PRELIMINARY ORBIT!
- From: Sam Wormley <swormley1@xxxxxxxxx>
- Date: Mon, 26 Sep 2005 03:50:48 GMT
Sam Wormley wrote:
http://www.spaceflightnow.com/delta/d313a/status.html
The Terminal Countdown is now underway for tonight's launch of the Delta 2 rocket and the Global Positioning System 2R-M1 satellite. The next three hours will be spent fueling the rocket, activating systems and performing final testing before liftoff at 11:37 p.m. EDT (0337 GMT) from pad 17A at Cape Canaveral Air Force Station in Florida.
The Complex 17 area is verified cleared of workers. A warning horn will be sounded three times at the seaside complex as a precaution to alert any remaining personnel in the vicinity that they should leave immediately.
Follow the "play-by-play" http://www.spaceflightnow.com/delta/d313a/status.html
BY JUSTIN RAY
Follow the countdown and launch of the Boeing Delta 2 rocket with the U.S. Air Force's latest GPS navigation spacecraft. Reload this page for the very latest on the mission.
0348 GMT (11:48 p.m. EDT Sun.)
T+plus 11 minutes, 40 seconds. SECO 1. The second stage engine cutoff has occurred, completing the motor's first firing of the day. The Delta 2 rocket with GPS 2R-M1 has arrived in a preliminary orbit around Earth following launch tonight from Cape Canaveral. The vehicle will coast for the next eight minutes before the second stage is re-ignited.
0347 GMT (11:47 p.m. EDT Sun.)
T+plus 10 minutes, 40 seconds. Speed has increased to 16,450 mph.
0346 GMT (11:46 p.m. EDT Sun.)
T+plus 9 minutes, 40 seconds. Good chamber pressure on the second stage engine. The Delta 2 rocket is 97 miles in altitude, 1,300 miles downrange from the launch pad, traveling nearly 15,000 mph.
0345 GMT (11:45 p.m. EDT Sun.)
T+plus 8 minutes. The second stage engine is still firing, consuming a hydrazine propellant mixture and nitrogen tetroxide oxidizer. This burn is needed to achieve a parking orbit around Earth.
0344 GMT (11:44 p.m. EDT Sun.)
T+plus 7 minutes, 30 seconds. The Delta 2 rocket is 93 miles in altitude, 840 miles downrange from the launch pad, traveling over 14,000 mph.
0343 GMT (11:43 p.m. EDT Sun.)
T+plus 6 minutes, 50 seconds. Data is being received at the Cape telemetry lab again. The second stage engine is firing normally.
0343 GMT (11:43 p.m. EDT Sun.)
T+plus 6 minutes. The second stage should last another five-and-a-half minutes.
0342 GMT (11:42 p.m. EDT Sun.)
T+plus 5 minutes. Boeing says staging happened, along with nose cone separation.
0341 GMT (11:41 p.m. EDT Sun.)
T+plus 4 minutes, 35 seconds. Staging should have occurred. But no telemetry means confirmation cannot be confirmed.
0341 GMT (11:41 p.m. EDT Sun.)
T+plus 4 minutes. Coming up on first stage engine cutoff.
0340 GMT (11:40 p.m. EDT Sun.)
T+plus 3 minutes, 25 seconds. Still awaiting to restore the telemetry data stream from the rocket.
0339 GMT (11:39 p.m. EDT Sun.)
T+plus 2 minutes, 20 seconds. The three air-ignited solid rocket boosters have burned out and separated. The rocket is now flying solely on the power generated by the liquid-fueled first stage main engine.
That confirmation was received via the long range tracking cameras. However, no data is being received from the rocket.
0338 GMT (11:38 p.m. EDT Sun.)
T+plus 1 minute, 40 seconds. The Delta 2 rocket is tracking down the proper course. No live data is being received in the telemetry station at the Cape.
0338 GMT (11:38 p.m. EDT Sun.)
T+plus 1 minute, 20 seconds. All six ground-start solid rocket boosters have burned out of propellant and separated from the Delta 2's first stage. A moment before the jettison occurred, the three remaining motors strapped to rocket ignited to continue assisting the rocket's RS-27A main engine on the push to space.
0337 GMT (11:37 p.m. EDT Sun.)
T+plus 56 seconds. The Delta 2 rocket has passed through the region of maximum aerodynamic pressure during its atmospheric ascent.
0337 GMT (11:37 p.m. EDT Sun.)
T+plus 40 seconds. The vehicle has broken the sound barrier as it accelerates rapidly on the combined power from the kerosene- and liquid oxygen-fed main engine and six solid-propellant motors.
0337 GMT (11:37 p.m. EDT Sun.)
T+plus 30 seconds. The six solid rocket motors ignited on the launch pad have surpassed their period of maximum thrust. Each of the Alliant Techsystems-made boosters generate roughly 100,000 pounds of thrust.
0337 GMT (11:37 p.m. EDT Sun.)
T+plus 20 seconds. The Delta 2 rocket is on its way carrying the GPS 2R-M1 satellite, roaring into the Florida nighttime sky. The vehicle has maneuvered to the correct eastward trajectory from the Cape Canaveral's coastline for the flight downrange.
0337 GMT (11:37 p.m. EDT Sun.)
LIFTOFF! Liftoff of the Boeing Delta 2 rocket launching the first modernized Global Positioning System satellite -- building a bridge from the navigation network of today to the advancements of tomorrow. .
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