Your message says predicted mag 0.5, ie a diff of about 4 in mag. If I am not mistaken, the design specs for Iridium allow a deviation from local vertical up to 0.5° The change in mag due to the flare angle used by Rob Matson in IridFlar (16-bit Windows / DOS) is shown in attached graph (from a list of predictions). Very small decrease until the solar reflection hits the Sun's edge, then about 4 at 0.5° ! So this is barely acceptable (and not a prediction error), but it could be interesting to follow up in case it continues for the same Iridium. _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Wed Jan 27 2016 - 04:15:49 UTC
This archive was generated by hypermail 2.3.0 : Wed Jan 27 2016 - 10:15:49 UTC