Re: Season of multiple Iridium flares

Bjoern Gimle (b_gimle@algonet.se)
Sat, 18 Dec 1999 13:27:24 +0100

>21A, 38, 77?, 64, 41, 65, and 66!  Are others noticing
>the same phenomenon from their locations?  --Rob
>
I had a similar peak around Dec.10, and will get a New Year's display.
Most of them are low elevation, both mornings and evenings,
but the negative magnitudes ratio is quite stable.
Using IridFlar 1.7 (without Ir20T special predictions) with 5 deg el.
cut-off, and -2/+6 magnitude limits, my numbers from Dec.06 to Jan.05 are:

15,18,29,36,36,43,38,42,41,32,26,22,17,18,12,13,12,16,17,13,18,25,26,36,41,4
4,40,42,41,40,31

Negative mag.:
5, 6, 7, 8, 8,17,16,13, 6, 5, 3, 2, 6, 7, 4, 4, 4, 6, 7, 4, 7, 7, 6, 7,
7,12,17,15,10, 7, 3

I also noticed a few double flares on a single pass:
Ir84? on Dec14 , Ir 9 Dec15, Ir12 Dec16, Ir50 Dec.17 (it was cloudy)
Ir48T Dec.23 and 24, Ir40 Jan.04, Ir80 Jan.05

-- bjorn.gimle@tietotech.se (office)                         --
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