John Locker schreef: > What we do know is that L4 and 5 , and possibly L3 can disappear. > However , as illustrated by my imaging last year.....they disappear to > the naked eye , but not completely.....I think Phil estimated down to > mag 6-7 from mag 2. In my observational experience, with the Lacrosses being among the prime targets in my camera patrol, Lacrosse 5 (05-016A) shows this behaviour much more regularly than the other Lacrosses. It suggests that something in either the design or mode of operation of this bird is different from it's predecessors. Whatever the reason, the "disappearance trick" is fascinating. - Marco PS: I think it is safest to assume that the "disappearing" is likely due to an accidental element of the design, not on purpose. Cloaking it to fade to mag 6-7 isn't of any use as military (and amateur) optical tracking systems will still easily pick it up with that brightness. ----- Dr Marco Langbroek - SatTrackCam Leiden, the Netherlands. e-mail: sattrackcam@wanadoo.nl Cospar 4353 (Leiden): 52.15412 N, 4.49081 E (WGS84), +0 m ASL Cospar 4354 (De Wilck): 52.11685 N, 4.56016 E (WGS84), -2 m ASL SatTrackCam: http://home.wanadoo.nl/marco.langbroek/satcam.html Station (b)log: http://sattrackcam.blogspot.com ----- ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Fri Jan 11 2008 - 12:07:08 UTC