Emily Lakdawalla • August 4, 2007
3--2--1--main engine start
A shining flare...straight up...
Six solids are burning strongly...
Past Mach 1...supersonic!
Solids tapering off...
First stage "performance looking good"
Six solid motors jettisoned!
Three more firing...
T plus 90
Main engine pressures still strong
Now 17 miles altitude (stupid Imperial units)
Approaching solid motor burnout
Three last solids are jettisoned!
Good jettison, all three air-start motors are off the vehicle!
At T+160 seconds, main engine continues to burn well at 34 miles altitude...
At T+195, first stage continues to look good...now a vanishing point of bright light in the dark sky...
"Running right down the center of the range track"...
At T+ 260ish, we have main engine cutoff, referred to as "MECO"...
Senior Editor and Planetary Evangelist for The Planetary SocietyRead more articles by Emily Lakdawalla
Become a member of The Planetary Society and together we will create the future of space exploration.
Take action today and your gift will go twice as far to increase NASA budgets and advance space priorities.