Actualités
Jason-3 Launch Timeline
About 154 seconds after the Falcon-9 rocket lifts off, the main engine will cut off. About three seconds after that, the rocket's first stage will separate. Second-stage ignition will follow in about eight seconds. Half a minute into the second-stage burn, the payload fairing, or launch vehicle nose cone, will be jettisoned -- a bit over three minutes after launch. The first cutoff of the second-stage engine will take place nine minutes after liftoff.
The Jason-3 spacecraft and second stage will then coast in an intermediate orbit for about another 46 minutes. The second-stage engine will fire a second time about 55 minutes after launch to place Jason-3 in the desired orbit. Separation of the rocket and spacecraft will occur about half a minute later, or almost 56 minutes after liftoff. A little more than two minutes later, Jason-3 will begin to deploy its twin solar arrays to prepare for operation.
DORIS will be the first instrument switched ON early tomorrow morning.
Image du mois 
