 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
| HomeDiscussion GroupsSpace ScienceAstronomyAmateur AstronomySpace FlightSpace StationShuttleSpace HistorySpace PolicySETI SpaceKB.com Contact UsLink To UsSearch & Site Map |
Space Forum / Shuttle / April 2005DART bumped into target satellite during test
DART bumped into target satellite during test http://www.spacetoday.net/Summary/2881 As NASA announced the formation of a mishap investigation board to examine the partial failure of the DART spacecraft a week ago, agency officials confirmed that DART apparently bumped into its target spacecraft during the test. ... During a quarterly earnings conference call Thursday, J.R. Thompson, president of Orbital Sciences Corporation, DART's prime contractor, said it appeared that DART bumped into MUBLCOM during the test. NASA officials confirmed late Friday that the two spacecraft apparently did make contact, enough to slightly alter MUBLCOM's orbit but not hard enough to damage either spacecraft. -end excerpt-  Signaturerk, Just an OldEngineer "These are highly complicated pieces of equipment almost as complicated as living organisms. In some cases, they've been designed by other computers. We don't know exactly how they work." -- Scientist in Michael Crichton's 1973 movie, Westworld > DART bumped into target satellite during test > http://www.spacetoday.net/Summary/2881 [quoted text clipped - 11 lines] > > -end excerpt- Is that a good or a bad thing? >> DART bumped into target satellite during test >> http://www.spacetoday.net/Summary/2881 [quoted text clipped - 12 lines] > > Is that a good or a bad thing? Well, being a concept person, I suppose you could say, The concept worked fine, how much closer do you want than to hit the target.. However, if I were a control systems expert, which I'm not but have attempted to build the odd servo system when I could see, I'd say it was bad, as the fuel usage was up, which would be analogous to a hunting servo, probably caused by a resonance in the system. If you are zig zaging through space, you would stand a good chance of hitting your target I'd imagine, especially if the closing speed was very slow! So, looks like more work needed on the software chaps. :-) Brian SignatureBrian Gaff....Note, this account does not accept Bcc: email. graphics are great, but the blind can't hear them Email: briang1@blueyonder.co.uk ______________________________________________________________________________________________________________ > Well, being a concept person, I suppose you could say, > [quoted text clipped - 9 lines] > > So, looks like more work needed on the software chaps. Somebody left the GPS running. Seems the DART had two attitude control systems, the precision system of the DART and the fourth stage Pegasus system. They had plenty of control left with the Pegasus system to leave the area, or even complete a Tethered Capture docking scenario, that is if they had a tether. SignatureCraig Fink Courtesy E-Mail Welcome @ WeBeGood@GMail.Com Hmm, the time to find you need a tether is not when you have reached orbit and the tether is back home...:-) Well, so the two systems were fighting each other, oh dear, someone has erred.... Thud. Brian SignatureBrian Gaff....Note, this account does not accept Bcc: email. graphics are great, but the blind can't hear them Email: briang1@blueyonder.co.uk ______________________________________________________________________________________________________________ >> Well, being a concept person, I suppose you could say, >> [quoted text clipped - 16 lines] > left with the Pegasus system to leave the area, or even complete a > Tethered Capture docking scenario, that is if they had a tether. >Well, being a concept person, I suppose you could say, > >The concept worked fine, how much closer do you want than to hit the >target.. Well, given that the concept was to *not* hit the target. You are full of BS. D. SignatureTouch-twice life. Eat. Drink. Laugh. -Resolved: To be more temperate in my postings. Oct 5th, 2004 JDL >>Well, being a concept person, I suppose you could say, >> [quoted text clipped - 6 lines] > > D. And for someone who purports in your sig line to have a sense of humour, you obviously tried hard not to see the humour in my post. Congratulations, its obvious how important you think you are. :-) Brian SignatureBrian Gaff....Note, this account does not accept Bcc: email. graphics are great, but the blind can't hear them Email: briang1@blueyonder.co.uk ______________________________________________________________________________________________________________ >>>Well, being a concept person, I suppose you could say, >>> [quoted text clipped - 13 lines] > And for someone who purports in your sig line to have a sense of humour, > you obviously tried hard not to see the humour in my post. After all, they did name it "DART", and hitting the target is the object of the game. Isn't it? Maybe, it a subconscious thing that happens when a program is given the wrong acronym for a name. (at this point for the humor impaired, I would like to add a smiley face :-), one with a wink ;-), and a lol ) SignatureCraig Fink Courtesy E-Mail Welcome @ WeBeGood@GMail.Com |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.