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travisleit01 Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Jan-24-04 10:39 PM
Response to Original message
10. 11:35 Update
0435 GMT (11:35 p.m. EST Sat.)
Landing is now 30 minutes away.

The next major event will be separation between the no-longer-needed cruise stage from the descent module containing the Opportunity rover. This jettison is scheduled for 11:44 p.m. EST.

Here is NASA's description of the cruise stage:

The cruise stage provides capabilities needed during the seven-month passage to Mars but not later in the mission, such as a propulsion system for trajectory correction maneuvers. Approximately 2.6 meters (8.5 feet) in diameter and 1.6 meters (5.2 feet) tall, the disc-shaped cruise stage is outfitted with solar panels and antennas on one face, and with fuel tanks and the aeroshell on the other. Around the rim sit thrusters, a star scanner and a Sun sensor.

The propulsion system uses hydrazine propellant stored in two titanium tanks. Since the the entire spacecraft spins at about 2 rotations per minute, fuel in the tanks is pushed outward toward outlets and through fuel lines to two clusters of thrusters. Each cluster has four thrusters pointing in different directions.

The star scanner and Sun sensor help the spacecraft determine its orientation. Since the rover's solar arrays are tucked away inside the aeroshell for the trip, the cruise stage needs its own for electrical energy. The arrays could generate more than 600 watts when the spacecraft was about as far from the Sun as Earth is, and generate about half that much as it nears Mars.

The cruise stage also carries a system for carrying excess heat away from the rover's computer with a pumped freon loop and rim-mounted radiators.

0431 GMT (11:31 p.m. EST Sat.)
Opportunity is currently 3,334 miles from Mars, traveling at 8,817 miles per hour.

Mission Control confirms that the gas generator heaters are active.

0426 GMT (11:26 p.m. EST Sat.)
Meanwhile, the Mars Global Surveyor and Mars Odyssey orbiters are verified in good shape. The spacecraft will be used for communications relay from Opportunity over the course of the evening. MGS will be receiving live information from the rover during descent while Odyssey will fly over the landing site a few hours later to collect data for transmission back to Earth.
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  -Mars Opportunity Live Thread (30 minutes to go) frogfromthenorth2  Jan-24-04 10:28 PM   #0 
  - Am I the only one watching this?!?  frogfromthenorth2   Jan-24-04 10:30 PM   #1 
  - Accckkk!!!!!  theHandpuppet   Jan-24-04 10:40 PM   #11 
     - Try:  travisleit01   Jan-24-04 10:42 PM   #13 
        - The BODY LANGUAGE Of Everyone In That Room  arwalden   Jan-24-04 11:00 PM   #47 
  - I have to download Real Player for Mac...  travisleit01   Jan-24-04 10:32 PM   #2 
  - Got it...  travisleit01   Jan-24-04 10:33 PM   #3 
  - I'm watching too  sonias   Jan-24-04 10:34 PM   #4 
  - Ahhh... Nice to see that I am not alone... Kind of quiet on GD tonight  frogfromthenorth2   Jan-24-04 10:35 PM   #5 
  - So...  travisleit01   Jan-24-04 10:36 PM   #7 
     - Technobable... The fun part is about to start...  frogfromthenorth2   Jan-24-04 10:39 PM   #8 
  - 13 minutes from cruise stage jettison...  frogfromthenorth2   Jan-24-04 10:36 PM   #6 
  - 3,334 miles from Mars, traveling at 8,817 miles per hour.  frogfromthenorth2   Jan-24-04 10:39 PM   #9 
  - 11:35 Update  travisleit01   Jan-24-04 10:39 PM   #10 
  - 0440 GMT (11:40 p.m. EST Sat.)  frogfromthenorth2   Jan-24-04 10:42 PM   #12 
  - 2 minutes to cruise stage jetison  Heyo   Jan-24-04 10:43 PM   #15 
  - What did they just say they were eating? n/t  travisleit01   Jan-24-04 10:42 PM   #14 
  - good luck peanuts  Heyo   Jan-24-04 10:43 PM   #16 
  - Welcome to DU Heyo!  frogfromthenorth2   Jan-24-04 10:44 PM   #18 
  - Yes welcome! n/t  travisleit01   Jan-24-04 10:45 PM   #22 
  - Good to know... n/t  travisleit01   Jan-24-04 10:44 PM   #19 
  - Good Luck Peanuts... lol... JPL tradition...  frogfromthenorth2   Jan-24-04 10:43 PM   #17 
     - Interesting... you can see I'm new at this :) n/t  travisleit01   Jan-24-04 10:44 PM   #20 
  - CREW STAGE JETTISON! n/t  travisleit01   Jan-24-04 10:45 PM   #21 
  - Successfuly cruise stage separation.  Heyo   Jan-24-04 10:45 PM   #23 
  - Applause!  travisleit01   Jan-24-04 10:46 PM   #25 
  - GOOD... it worked...  frogfromthenorth2   Jan-24-04 10:45 PM   #24 
  - Opportunity is poised for entering the atmosphere in about 13 minutes.  frogfromthenorth2   Jan-24-04 10:46 PM   #26 
  - On the edge of my seat...  travisleit01   Jan-24-04 10:47 PM   #27 
  - 2100 miles from landing site..  Heyo   Jan-24-04 10:47 PM   #28 
  - Hey, That guy is wearing the same shirt he did last time (with the flag)  frogfromthenorth2   Jan-24-04 10:48 PM   #29 
  - 0445 GMT (11:45 p.m. EST Sat.)  Sven77   Jan-24-04 10:48 PM   #30 
  - 11 minutes....  frogfromthenorth2   Jan-24-04 10:49 PM   #32 
  - Touchdown in ~ 16 min. 11 min. til entry! n/t  travisleit01   Jan-24-04 10:49 PM   #31 
  - system temperatures...  Heyo   Jan-24-04 10:51 PM   #34 
  - 0449 GMT (11:49 p.m. EST Sat.)  frogfromthenorth2   Jan-24-04 10:50 PM   #33 
  - by this time..  Heyo   Jan-24-04 10:52 PM   #35 
     - The delay is about 10 minutes no?  frogfromthenorth2   Jan-24-04 10:53 PM   #37 
        - about that yeah n/t  Heyo   Jan-24-04 10:54 PM   #38 
           - Must be bouncing now...lol  frogfromthenorth2   Jan-24-04 10:56 PM   #40 
              - Damn CNN not covering this yet... dumbass...  frogfromthenorth2   Jan-24-04 10:57 PM   #42 
  - A pre-entry poll of Mission Control is underway.  frogfromthenorth2   Jan-24-04 10:53 PM   #36 
  - Five minutes from entering the atmosphere.  frogfromthenorth2   Jan-24-04 10:55 PM   #39 
  - altitude 258 miles n/t  Heyo   Jan-24-04 10:57 PM   #41 
     - 1 minute to atmosphereic entry  Heyo   Jan-24-04 10:59 PM   #43 
  - 1 minute to go; 12007 mph  Terwilliger   Jan-24-04 10:59 PM   #44 
  - no..20 seconds...lol  frogfromthenorth2   Jan-24-04 10:59 PM   #46 
     - CNN on it on...  frogfromthenorth2   Jan-24-04 11:01 PM   #50 
        - LIVE on CNN  frogfromthenorth2   Jan-24-04 11:01 PM   #51 
  - 1 minute  frogfromthenorth2   Jan-24-04 10:59 PM   #45 
  - Mach 28.4  Heyo   Jan-24-04 11:01 PM   #49 
  - vehicle slowing down  TrogL   Jan-24-04 11:01 PM   #48 
  - maximum deceleration  Heyo   Jan-24-04 11:02 PM   #52 
  - 16 miles altitude  Heyo   Jan-24-04 11:02 PM   #54 
  - 6.4 g's slowing to 5 g's  TrogL   Jan-24-04 11:02 PM   #53 
  - parachute deployment in 50 seconds  Heyo   Jan-24-04 11:03 PM   #55 
     - parachute deployed.....  Heyo   Jan-24-04 11:04 PM   # 
  - parachute deployed  TrogL   Jan-24-04 11:04 PM   #56 
  - heat shield separated  TrogL   Jan-24-04 11:04 PM   #58 
  - Chute OPEN !!!!  frogfromthenorth2   Jan-24-04 11:04 PM   #57 
  - WOO HOO!!  travisleit01   Jan-24-04 11:05 PM   #59 
  - air bags in 20 seconds  Heyo   Jan-24-04 11:05 PM   #60 
  - retros fired  TrogL   Jan-24-04 11:05 PM   #61 
  - bounce signal  TrogL   Jan-24-04 11:06 PM   #62 
  - IT"S ALIVE!!!!!!!!  Heyo   Jan-24-04 11:06 PM   #64 
  - successful landing  TrogL   Jan-24-04 11:06 PM   # 
  - strong signal  TrogL   Jan-24-04 11:07 PM   #65 
  - Now...the wait begins...  frogfromthenorth2   Jan-24-04 11:06 PM   #63 
  - LANDED!  Terwilliger   Jan-24-04 11:07 PM   #66 
  - very strong signal!!!!  Heyo   Jan-24-04 11:08 PM   #68 
  - WOW  frogfromthenorth2   Jan-24-04 11:08 PM   #67 
  - CNN showing bounce video  Terwilliger   Jan-24-04 11:10 PM   #69 
     - Was that Al Gore?  Terwilliger   Jan-24-04 11:11 PM   #70 
        - AHH-nold is there  Terwilliger   Jan-24-04 11:11 PM   #72 
  - rolling on the surface  TrogL   Jan-24-04 11:11 PM   #71 
  - Heyo, Trogl  Ready4Change   Jan-24-04 11:12 PM   #73 
  - still rolling...  Heyo   Jan-24-04 11:15 PM   #74 
  - Rollin' Rollin' Rollin'...  tridim   Jan-24-04 11:18 PM   #77 
  - youre welcome!  Heyo   Jan-24-04 11:17 PM   #75 
     - I wish all my threads would be that popular....lol  frogfromthenorth2   Jan-24-04 11:18 PM   #76 
        - first tone  Heyo   Jan-24-04 11:21 PM   #78 
           - vehicles landed with 2.3g velocity..  Heyo   Jan-24-04 11:23 PM   #81 
  - Base pedal tones!  tridim   Jan-24-04 11:21 PM   #79 
  - The signal still says it's rolling?  tridim   Jan-24-04 11:25 PM   #85 
  - NO fault tone  frogfromthenorth2   Jan-24-04 11:23 PM   #80 
  - Means everything still together...lol  frogfromthenorth2   Jan-24-04 11:23 PM   #82 
  - landed plus Y petal down  Heyo   Jan-24-04 11:24 PM   #83 
  - Not base petal down.... not sure if it's still rolling.... ?!?!  frogfromthenorth2   Jan-24-04 11:24 PM   #84 
  - It's martians rolling it into the vast underground caverns.  Ready4Change   Jan-24-04 11:26 PM   #86 
     - lol  frogfromthenorth2   Jan-24-04 11:26 PM   #87 
  - Damn.... just lost my connection to NASA TV....  frogfromthenorth2   Jan-24-04 11:27 PM   #88 
  - Same here........  ewagner   Jan-24-04 11:29 PM   #89 
     - Mr total recall..  Heyo   Jan-24-04 11:30 PM   #90 
  - Al Gore Was Present.... YAY!  arwalden   Jan-24-04 11:31 PM   #91 
  - Yeah... he said he invented the Mars Rover.... ?!?!  frogfromthenorth2   Jan-24-04 11:32 PM   #92 
  - Does NASA Sterilize The Lander?  arwalden   Jan-24-04 11:35 PM   #93 
     - Actually: They did !!!  frogfromthenorth2   Jan-24-04 11:35 PM   #95 
  - Wasn't rolling for that long.... lol  frogfromthenorth2   Jan-24-04 11:35 PM   #94 
  - lander righting itself as we speak. n/t  Heyo   Jan-24-04 11:36 PM   #96 
     - Missed that one.... Cool...  frogfromthenorth2   Jan-24-04 11:37 PM   #97 
     - Funny.. the vehicle was rated to handle 40g impact  Heyo   Jan-24-04 11:40 PM   #98 
        - I Heard That... The First Impact Must Have Been A "Glancing" Hit..  arwalden   Jan-24-04 11:43 PM   #100 
  - Good night everybody...that's it.... show is over...  frogfromthenorth2   Jan-24-04 11:42 PM   #99 
  - that kinda sucks  Heyo   Jan-24-04 11:44 PM   #101 
     - Cool thing is that we will have nice pics in the morning!  frogfromthenorth2   Jan-24-04 11:45 PM   #102 
  - NASA website says it's on its side  TrogL   Jan-24-04 11:49 PM   #103 
 

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