Rob,
Thanks, I reset the default mag for unknowns to the Molczan value and the predicted mag for the pass in
question did come back at 4.3, with Coronas at predicted at 4.4, I would still say Coronas is dimmer than
predicted though. An updated Satmag.dat file would be welcome, mine is dated
8/23/00. Two questions, can the Molczan data be downloaded from somewhere for updating purposes, and from
where? Can the satmag.dat file be updated manually, ie using a text editor?
Jim
"Matson, Robert" wrote:
> Hi Jim,
>
> > Coronas SL 14 R/B
> > The RB is noticabley brighter than the satellite, R/B predicted at 4.8,
> > comparing it to SAO 18897, mag 4.3 (I think Theta Cepheus, the
> > skymap label looks like a figure 8 and I don't see a figure 8 in my
> > greek alphabet, so theta comes close) it seems to be similar
> > magnitude, I'm reporting 4.4 .
>
> Plotting the R/B track for your location, it did pass quite
> close to theta-Cepheus (mag 4.21, HP #101093, HD #195725).
> The SkyMap-predicted magnitude was +4.3 at closest approach
> to the star, so I'd say that agrees quite closely with your
> observation. (I used the Molczan standard magnitude of +5.5).
> Perhaps you were using a default standard magnitude of +6?
> I can send you an up-to-date SATMAG.DAT file if you need
> one.
>
> Best,
> Rob
>
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