Download Rexus User Manual

Page 71
REXUS User Manual
12.5.1 CD List
The schedule below indicates standard countdown actions relative to launch (T = 0). The
final CD list will be issued during the pre-flight meeting.
Time (H:M) Action
-2H30
-1H35
FIRST HIGH ALTITUDE BALLOON
DECISION TO START COUNTDOWN
-1H20
START OF COUNTDOWN
CHECK LIGHTS AND COMMUNICATION
-1H15
END OF RADIO SILENCE
SWITCH ON PAYLOAD TRANSMITTER AND TRANSPONDER
AND START HORIZONTAL P/L CHECK
-1H
PAYLOAD TEST COMPLETED
PAYLOAD TRANSMITTER OFF
RADIO SILENCE IN THE LAUNCH AREA
CHECK FIRING LINE LEDEX SYSTEM, ARM AND ELEVATE VEHICLE, CLEAR PAD
-45M
SIREN ON
-20M
LEDEX SYSTEM CHECKED, VEHICLE IS ARMED AND ELEVATED, PAD IS CLEAR
-15M
END OF RADIO SILENCE
SWITCH ON PAYLOAD
-10M
PAYLOAD TEST COMPLETED
PAYLOAD TRANSMITTER OFF, RADIO SILENCE IN THE LAUNCH AREA
END OF RADIO SILENCE
AUTHORIZATION TO SWITCH ON PAYLOAD
-5M
ARM LEDEX FIRING LINE
-3M30
SEND QUESTION LIGHTS
-3M
VOICE COUNT EVERY MINUTE
FIRING LINE LEDEX ARMED
PAYLOAD ON INTERNAL
-1M45
TAPE RECORDERS ON
-1M
VOICE COUNT EVERY 10 SECONDS
-40S
SEND ANSWER LIGHT
-25S
AUTHORIZE LAUNCHING
-10S
VOICE COUNT EVERY SECOND
0
*** LIFT-OFF ***
+10S
VOICE COUNT EVERY 10 SECONDS
+1M
VOICE COUNT EVERY MINUTE UNTIL +6 M