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#21
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Phoenix Lands on Mars this Sunday!!!
From: M
See my article he http://sciencedude.freedomblogging.c...nding-preview/ Unlike the recent Mars Rovers, the Phoenix lander is designed to stay in place at it's landing site. Please fix your Web page to have the correct spelling of the word "its". By the way, I make two predictions of what will be seen by the lander: 49% chance it'll see the ground approaching very very fast, just like the Ranger views of the surface of the Moon. (That final partial-frame was amazing at the time!! How many others in this newsgroup watched it live on TV as I did? Were all of you as impressed as I was?) Then MRO will see a huge cloud of debris. 49% chance it'll see the ground approaching at a reasonable rate, then after landing it'll see ice and sand the first day, more ice and sand the second day, and even more ice and sand the third day. Starting the fourth day it'll start to see the same ice and sand it already saw, the first panorama mosaic having been completed now. The remaining 2% are reserved for seeing something upredictable. |
#22
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Phoenix Lands on Mars this Sunday!!!
On May 21, 7:31 am, "jonathan" wrote:
2) Organic material? Yes, specifically methandione - CO2 :-) |
#23
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Phoenix Lands on Mars this Sunday!!!
Robert Maas, http://tinyurl.com/uh3t wrote: The remaining 2% are reserved for seeing something upredictable. http://www.horror-punk.net/images/angryredplanet4.jpg Pat |
#24
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Phoenix Lands on Mars this Sunday!!!
"OM" wrote in message ... ...Part of me is expecting this as well. JPL's been way too cocky about claiming their success at fixing what killed MPL for me to be comfortable about the use of a descent engine system over tried-and-proven airbags. If Phoenix makes an ash out of itself, you can bet your ass that they'll go back to airbags and stick with them for the forseeable future. I've heard aerospace engineers refer to JPL as Just Plain Lucky when one of their missions actually succeeds. ;-) Jeff -- A clever person solves a problem. A wise person avoids it. -- Einstein |
#25
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Phoenix Lands on Mars this Sunday!!!
On May 20, 11:34*pm, OM wrote:
On Wed, 21 May 2008 00:49:50 GMT, Brian Thorn wrote: Wreckage. I'm betting the next we hear of it is wreckage spotted by MRO sometime next month. ...Part of me is expecting this as well. JPL's been way too cocky about claiming their success at fixing what killed MPL for me to be comfortable about the use of a descent engine system over tried-and-proven airbags. If Phoenix makes an ash out of itself, you can bet your ass that they'll go back to airbags and stick with them for the forseeable future. Time will tell. The Vikings were landers like Phoenix so it has worked before. Oops, sorry. Way to pessimistic lately. ...Well, that's what you get for responding to a troll like "Jonathan", Brian. Let that be a lesson to you :-P Anyone OM doesn't like is a troll... * * * * * * * * * * * * * * * * OM -- * *]=====================================[ * *] * OMBlog -http://www.io.com/~o_m/omworld* [ * *] * * * *Let's face it: Sometimes you *need* * * * * [ * *] * * * * *an obnoxious opinion in your day! * * * * * [ * *]=====================================[ |
#26
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Phoenix Lands on Mars this Sunday!!!
On Fri, 23 May 2008 09:14:43 -0400, "Jeff Findley"
wrote: "OM" wrote in message .. . ...Part of me is expecting this as well. JPL's been way too cocky about claiming their success at fixing what killed MPL for me to be comfortable about the use of a descent engine system over tried-and-proven airbags. If Phoenix makes an ash out of itself, you can bet your ass that they'll go back to airbags and stick with them for the forseeable future. I've heard aerospace engineers refer to JPL as Just Plain Lucky when one of their missions actually succeeds. ;-) ....I've been doing a bit more researching into what was done to make Phoenix safer than MPL (*), and to be honest I've gotten a bit more positive about the chances of a safe landing. What worries me more are two possibilities: 1) that the landing retros will contaminate the landing site and frack up the data from the soil samples, and/or 2) Pat's comments about the retros heating up the soil and the ice underneath does a Mentos-in-Coke impression and Phoenix becomes the first lander to make an ascent from the Martian surface. Either way, we've got about 36 hours to go. Keep your fingers crossed even if it fracks with your typing...! (*) Mars Pancake Landing OM -- ]=====================================[ ] OMBlog - http://www.io.com/~o_m/omworld [ ] Let's face it: Sometimes you *need* [ ] an obnoxious opinion in your day! [ ]=====================================[ |
#27
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Phoenix Lands on Mars this Sunday!!!
jonathan wrote:
Phoenix Home http://www.nasa.gov/mission_pages/ph...ain/index.html News Release http://marsprogram.jpl.nasa.gov/news...20080516a.html http://phoenix.lpl.arizona.edu/index.php Interesting landing animation.... http://phoenix.lpl.arizona.edu/video...etric_high.mov http://phoenix.lpl.arizona.edu/phases05.php ....Thrusters are started when the lander is 570 m (1900 feet) above the surface. The navigation system is capable of detecting and avoiding hazards on the surface of Mars... Looks like it can maneuver on the way down. |
#28
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Phoenix Lands on Mars this Sunday!!!
On May 20, 8:34*pm, OM wrote:
On Wed, 21 May 2008 00:49:50 GMT, Brian Thorn wrote: Wreckage. I'm betting the next we hear of it is wreckage spotted by MRO sometime next month. ...Part of me is expecting this as well. JPL's been way too cocky about claiming their success at fixing what killed MPL for me to be comfortable about the use of a descent engine system over tried-and-proven airbags. If Phoenix makes an ash out of itself, you can bet your ass that they'll go back to airbags and stick with them for the forseeable future. Actually, I think it's been the other way around; the JPL and NASA folk in general have been far too quiet for a number of years on what was being done to correct the possible issues that killed MPL as well as identify anything else. Lately they've been fairly careful to say that this landing will be very challenging and difficult, and some have said outright that they are worried they missed something. This is the same thing we saw for the MER, Odyssey, and MO teams, both of whom have been very successful in their missions so far, and are looking forward to extending them (or extending them further). -Mike |
#29
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Phoenix Lands on Mars this Sunday!!!
OM writes:
...I've been doing a bit more researching into what was done to make Phoenix safer than MPL (*), and to be honest I've gotten a bit more positive about the chances of a safe landing. What worries me more are two possibilities: 1) that the landing retros will contaminate the landing site and frack up the data from the soil samples, and/or 2) Pat's comments about the retros heating up the soil and the ice underneath does a Mentos-in-Coke impression and Phoenix becomes the first lander to make an ascent from the Martian surface. As far as I know the landing retros are designed to raise the temperature of the top soil not more than 1 degree (C or F, I don't know). This looks somewhat harmless to me... Jochem -- "A designer knows he has arrived at perfection not when there is no longer anything to add, but when there is no longer anything to take away." - Antoine de Saint-Exupery |
#30
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Phoenix Lands on Mars this Sunday!!!
"Jochem Huhmann" wrote in message ... As far as I know the landing retros are designed to raise the temperature of the top soil not more than 1 degree (C or F, I don't know). This looks somewhat harmless to me... Still, this would have been a good time to try the skycrane concept. ** Posted from http://www.teranews.com ** |
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