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Liftoff! Falcon at T-9
In sci.space.policy message -
september.org, Fri, 25 May 2012 08:58:01, Jeff Findley posted: In article , says... Jeff Findley writes: The live audio says that the LIDAR picked up a "stray" return from a reflector on the JEM module. The reflector in question is not one which Dragon is supposed to be "looking at". Sounds like a classic "integration problem" which cropped up unexpectedly. Someone should go out and put some black tape over the bloody thing ;-) That would be a good hardware solution, but a software solution should be faster to implement. ;-) The next Dragon should have a paint-gun g. More seriously, rather than relying on reflectors, include modulated light sources on the target - essentially laser pointers, modulated to be unmistakable, with beam-spreaders, and the reflectors around them. Or even give the sources IFF circuitry - Dragon pulsed "Numbers?" and they reply "One", "Two", etc., as the case may be. -- (c) John Stockton, nr London, UK. Turnpike v6.05. Website http://www.merlyn.demon.co.uk/ - w. FAQish topics, links, acronyms PAS EXE etc. : http://www.merlyn.demon.co.uk/programs/ - see in 00index.htm Dates - miscdate.htm estrdate.htm js-dates.htm pas-time.htm critdate.htm etc. |
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Liftoff! Falcon at T-9
On 25/05/2012 1:10 AM, Snidely wrote:
Snidely was thinking very hard : Snidely explained on 5/22/2012 : Auto launch sequencer running at T-10. Dragon on internal power at T-8. Nominal through 50 kilometers ... approaching MECO1. MECO2 Separation and 2nd stage ignition. Saw this shot on a newspaper front page at a news stand. http://www.sfgate.com/cgi-bin/article.cgi?f=/n/a/2012/05/21/national/a084100D72.DTL http://imgs.sfgate.com/c/pictures/2012/05/22/ba-spacex22_WRE0111180557_part6.jpg AP's Craig Rubadoux picked a great place to watch the launch. /dps All we need now is Buzz Lightyear saying "TO INFINITY AND BEYOND!" ;-) Great shot. |
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Liftoff! Falcon at T-9
In article id,
lid says... In sci.space.policy message - september.org, Fri, 25 May 2012 08:58:01, Jeff Findley posted: In article , says... Jeff Findley writes: The live audio says that the LIDAR picked up a "stray" return from a reflector on the JEM module. The reflector in question is not one which Dragon is supposed to be "looking at". Sounds like a classic "integration problem" which cropped up unexpectedly. Someone should go out and put some black tape over the bloody thing ;-) That would be a good hardware solution, but a software solution should be faster to implement. ;-) The next Dragon should have a paint-gun g. More seriously, rather than relying on reflectors, include modulated light sources on the target - essentially laser pointers, modulated to be unmistakable, with beam-spreaders, and the reflectors around them. Or even give the sources IFF circuitry - Dragon pulsed "Numbers?" and they reply "One", "Two", etc., as the case may be. The laser range finders worked fine, once they were tweaked a bit to prevent them from seeing "stray" reflections from the Japanese module. Tweaking is to be expected on initial test flights. If it weren't, we'd just skip the test flights and go straight to "operational" status. Jeff -- " Ares 1 is a prime example of the fact that NASA just can't get it up anymore... and when they can, it doesn't stay up long. " - tinker |
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