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![]() http://msnbc.msn.com/id/12319764/ quote NASA keeps mum on space robot’s failure DART report considered too sensitive for public release .... The space agency distributed a new public information policy last month specifying that information protected by ITAR is considered "sensitive but unclassified" and that unauthorized release to news organizations could result in prosecution or disciplinary action. end quote It appears there is more to the story than what is presented in Mr. Oberg's story. A quick look at the NASA web site shows: http://search.nasa.gov/nasasearch/se...de=dart+report That many of the DART documents appear to have the date of "30 Mar 06", when in fact the documents are from various dates prior to March 30, 2006. Pure speculation, but it appears that these documents may have been pulled off the NASA web site, then put back on the web site on March 30th of this year. Hence the wrong date. Did NASA post-facto edit these documents? Did all the documents make it back on to the NASA web site? Are previously released documents too sensitive for public release? Inquiring minds would like to know. -- Craig Fink Courtesy E-Mail Welcome @ |
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Maybe its the same technology as used for that shambolic anti missile test
that was fudged so nobody knew it was a failure! Brian -- Brian Gaff....Note, this account does not accept Bcc: email. graphics are great, but the blind can't hear them Email: __________________________________________________ __________________________________________________ __________ "Craig Fink" wrote in message news ![]() http://msnbc.msn.com/id/12319764/ quote NASA keeps mum on space robot’s failure DART report considered too sensitive for public release ... The space agency distributed a new public information policy last month specifying that information protected by ITAR is considered "sensitive but unclassified" and that unauthorized release to news organizations could result in prosecution or disciplinary action. end quote It appears there is more to the story than what is presented in Mr. Oberg's story. A quick look at the NASA web site shows: http://search.nasa.gov/nasasearch/se...de=dart+report That many of the DART documents appear to have the date of "30 Mar 06", when in fact the documents are from various dates prior to March 30, 2006. Pure speculation, but it appears that these documents may have been pulled off the NASA web site, then put back on the web site on March 30th of this year. Hence the wrong date. Did NASA post-facto edit these documents? Did all the documents make it back on to the NASA web site? Are previously released documents too sensitive for public release? Inquiring minds would like to know. -- Craig Fink Courtesy E-Mail Welcome @ |
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Paging Dr Flannery, paging Dr Flannery..
On Sat, 15 Apr 2006 13:13:04 GMT, Craig Fink wrote: http://msnbc.msn.com/id/12319764/ quote NASA keeps mum on space robot’s failure DART report considered too sensitive for public release Herm Astropics http://home.att.net/~hermperez |
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Brian Gaff wrote:
Maybe its the same technology as used for that shambolic anti missile test that was fudged so nobody knew it was a failure! Brian The reported facts about DART are consistent with a software issue of some kind. Software fails when it has not been adequately tested. (The failure mode itself could seem embarrasingly simple and therefore stupid.) Someone could very well be using the convenient security excuse to cover their hindquarters. But why? The report would be read by the hindquarter-covering person's higher-ups. Unless it is the higher-ups who are now protecting *their* posteriers. - Ed Kyle |
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Ed Kyle wrote:
The reported facts about DART are consistent with a software issue of some kind. Software fails when it has not been adequately tested. No, software usually continues to execute, or executes to completion, in which case the end state may or may not result in a lock up, or an infinite loop. Usually it's the software engineers that fail. http://cosmic.lifeform.org |
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![]() Thomas Lee Elifritz wrote: Ed Kyle wrote: The reported facts about DART are consistent with a software issue of some kind. Software fails when it has not been adequately tested. No, software usually continues to execute, or executes to completion, in which case the end state may or may not result in a lock up, or an infinite loop. Usually it's the software engineers that fail. Program managers who fail to test to find faults in complex software are the ones who should be blamed. No software engineer can design perfect algorithims that work perfectly in every circumstance, especially when the circumstance is rangefinding and/or pattern recognition in low earth orbit using detectors and guidance systems that may have originally been designed for other purposes and were brought together in a hurry on a limited budget and tight schedule. - Ed Kyle |
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Ed Kyle wrote:
Thomas Lee Elifritz wrote: Ed Kyle wrote: The reported facts about DART are consistent with a software issue of some kind. Software fails when it has not been adequately tested. No, software usually continues to execute, or executes to completion, in which case the end state may or may not result in a lock up, or an infinite loop. Usually it's the software engineers that fail. Program managers who fail to test to find faults in complex software are the ones who should be blamed. Actually it's mathematics and nature itself that is to blame, that pesky two to the power of two recursively iterated thing. No software engineer can design perfect algorithims that work perfectly in every circumstance, especially when the circumstance is rangefinding and/or pattern recognition in low earth orbit using detectors and guidance systems that may have originally been designed for other purposes and were brought together in a hurry on a limited budget and tight schedule. Your lack of understanding of software and hardware is stunning. But by all means, keep posting about something you know little about! http://cosmic.lifeform.org |
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On Mon, 17 Apr 2006 08:21:24 -0700, ed kyle wrote:
Craig Fink wrote: http://msnbc.msn.com/id/12319764/ quote NASA keeps mum on space robot's failure DART report considered too sensitive for public release Mr. Oberg reported that " In DART's case, the ITAR concerns may be connected with the use of a navigation device produced by the British-based Surrey Space Centre, which sold a imilar version of the device to the Chinese for use in a recent space probe.... sources have told MSNBC.com that the case may have sparked a criminal investigation." http://www.washingtonpost.com/wp-dyn...052700702.html Orbital Sciences built DART. Remember when the Feds raided Orbital Sciences offices in Arizona a year or so ago? British produced device and an ITAR violation? Did the British use USA components in their device? Do you have a link to the story? http://www.latimes.com/business/la-f...lines-business Boeing recently got fined for a selling planes to China with a ten+ year old, $2000, solid state gyro chip in the navigation system. Maybe it's all related. It's in Aerobus' planes too. http://www.systron.com/pro_QRS11.asp The thing I find interesting is the modified dates on NASA web site wrt DART. Possibly a violation occurred on NASA own web site, causing them to pull then put back a bunch of stuff. Like NASA thinks it can somehow undo the public release of information on the internet? I hope Mr. Oberg keeps snooping. -- Craig Fink Courtesy E-Mail Welcome @ |
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Thomas Lee Elifritz ) wrote:
: Ed Kyle wrote: : The reported facts about DART are consistent with a software : issue of some kind. Software fails when it has not been : adequately tested. : No, software usually continues to execute, or executes to completion, : in which case the end state may or may not result in a lock up, : or an infinite loop. : Usually it's the software engineers that fail. That was my thought. Software fails when programmers don't write decent code. Testers, though they are needed to just be sure, aren't the 'problem' of bad software development. Eric : http://cosmic.lifeform.org |
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Ed Kyle ) wrote:
: Thomas Lee Elifritz wrote: : Ed Kyle wrote: : : The reported facts about DART are consistent with a software : issue of some kind. Software fails when it has not been : adequately tested. : : No, software usually continues to execute, or executes to completion, : in which case the end state may or may not result in a lock up, : or an infinite loop. : : Usually it's the software engineers that fail. : Program managers who fail to test to find faults in : complex software are the ones who should be blamed. Blame alone won't fix the problem nor will it prevent similar problems in the future. : No software engineer can design perfect algorithims that : work perfectly in every circumstance, especially when : the circumstance is rangefinding and/or pattern recognition : in low earth orbit using detectors and guidance systems : that may have originally been designed for other purposes : and were brought together in a hurry on a limited budget : and tight schedule. Right, interface problems between designed modules do occur with badly designed software, but someone must see the big picture and they should be involed with the testing, at least on defining the expected results. Personally, this is why I like the Rapid Prototyping Model rather than the Waterfall Model when developing SW. The former allows for problems to be worked out early and if done right mitigate risk early on as well. The latter can have it be months or even years before the first 'drop' where anyone can see results and by then a lot of work could be in something that is basically bad. Then comes the work of trying to fix rather than redo. Rapid Protyping or the Spiral Model allows for less redo which tends to save time and make a better product. Eric : - Ed Kyle |
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Thread | Thread Starter | Forum | Replies | Last Post |
Dart too sensitive for public release? | Craig Fink | Space Shuttle | 24 | April 24th 06 02:40 PM |
Dart too sensitive for public release? | Craig Fink | Space Station | 24 | April 24th 06 02:40 PM |
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