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Destination Mars




Mission: Phoenix lander
Landing: May 25, 2008
Entry: 7:46 p.m. EDT
Touchdown: 7:53 p.m. EDT (2353 GMT)
Site: Vasitas Borealis

Phoenix video coverage

Mission Status Center

Landing timeline

Phoenix science goals

Targeting the water

Phoenix instruments

Launch day story

Launch Status Center

Pre-flight preview



Phoenix entry, descent and landing


Credit: NASA/JPL
 

PDT/ERT*......EDT/ERT.......EVENT

05/25/08
12:00:00 PM...03:00:00 PM...News briefing on NASA television (NTV)
03:00:00 PM...06:00:00 PM...Begin JPL control room feed on NTV
03:30:00 PM...06:30:00 PM...Begin mission commentary on NTV
04:16:00 PM...07:16:00 PM...Propulsion system pressurization
04:38:00 PM...07:38:00 PM...Begin Mars Odyssey data relay
04:38:00 PM...07:38:00 PM...Green Bank radio telescope begins listening
04:39:00 PM...07:39:00 PM...Cruise stage separation
04:40:00 PM...07:40:00 PM...Spacecraft turns to entry attitude
04:46:33 PM...07:46:33 PM...Atmospheric entry (alt: 77.6 sm; vel: 12,527 mph)
04:47:00 PM...07:47:00 PM...Plasma blackout begins (peak deceleration: 9.2 Gs)
04:48:55 PM...07:48:55 PM...Peak heating (time approximate; 46 watts/cm^2)
04:49:00 PM...07:49:00 PM...Plasma blackout ends
04:50:15 PM...07:50:15 PM...Parachute deploy (+/- 13 seconds; alt: 7.8 sm)
04:50:30 PM...07:50:30 PM...Heat shield jettisoned (+/- 13 s; alt: 6.8 sm; vel: 268 mph)
04:50:40 PM...07:50:40 PM...Landing legs deploy (+/- 13 seconds)
04:51:30 PM...07:51:30 PM...Radar altimeter activated
04:53:08 PM...07:53:08 PM...Antenna switch; data transmission gap
04:53:09 PM...07:53:09 PM...Lander separation (+/- 46 s; alt: 3,215 feet; vel: 125 mph)
04:53:12 PM...07:53:12 PM...Descent thrusters fire
04:53:14 PM...07:53:14 PM...Data transmission gap ends
04:53:34 PM...07:53:34 PM...Constant velocity phase begins (+/- 46 seconds)
04:53:52 PM...07:53:52 PM...TOUCHDOWN (+/- 46 seconds)
04:54:52 PM...07:54:52 PM...Lander radio off (+/- 46 seconds)
05:13:00 PM...08:13:00 PM...Solar array opening
05:28:00 PM...08:28:00 PM...Start Mars Reconnaissance Orbiter playback of recorded data
05:30:00 PM...08:30:00 PM...Start Mars Express playback of recorded data
05:30:00 PM...08:30:00 PM...Post-landing poll of subsystem health
06:43:00 PM...09:43:00 PM...Mars Odyssey communications pass; possible pictures
07:02:00 PM...10:02:00 PM...Mars Odyssey pass ends
09:00:00 PM...12:00:00 AM...News briefing on NTV

* Earth received time
MISSION STATUS CENTER

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