Spare ? Iridium 98 has a marginally lower MM than 42 so it lags by about 1 s/day, and flares could "coincide" over large orbit sections for weeks. Normal spares advance by 4-8 min/day, so they very soon catch up with another operational Iridium. Den 25 sep 2014 16:48 skrev "Kevin Fetter via Seesat-l" <seesat-l_at_satobs.org >: > Greg wrote > > > http://www.satobs.org/seesat/Sep-2014/0194.html > > > While checking for flare passes, I see there's a unique (?) opportunity > at my location on the 30th, as Iridiums 42 & 98 will flare just 22 seconds > and 1 degree apart in about the > same spot in the sky near Polaris > > Problem is, one of the iridium's is a spare sat, so it could have a bad > attitude. > > Once I was to have 2 iridium close together and gve a nice show, not. The > spare sat, didn't even get close to predicted mag, > > So just a warning, just incase the show isn't so good. > > Kevin > > > _______________________________________________ > Seesat-l mailing list > http://mailman.satobs.org/mailman/listinfo/seesat-l > _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Thu Sep 25 2014 - 11:37:19 UTC
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