[neo_followup] {MPML} A10whno = mag 11.5 rock : light curve?

[Peter Birtwhistle]

Hi Bill,

I was aware of when it was coming out of shadow from a FindOrb ephemeris 
and was waiting for it to appear, but nothing came out.

Since then I've searched all around and several degrees down the line 
FindOrb indicates the uncertainty lies, but still found nothing 
unfortunately.

Peter



On 07/04/2021 00:57, Bill J. Gray wrote:
> Hello all,
>
>    Just thought I'd note that this is about as bright as they
> get.  Seems like a good light-curve opportunity.  The ephemeris
> uncertainty should be small,  a few arcminutes or so.  (Be
> warned that MPC appears to be off by over a degree,  due to
> the absence of earth/moon perturbations.)
>
>    Further commentary at
>
> https://www.projectpluto.com/temp/mpec.htm
>
>    It was brought to my attention by Peter Birtwhistle,  who
> was unable to find it... because it went through the earth's
> shadow for a bit.  I wish we'd realized that before it
> reached the shadow;  Peter has observed such events before...
>
> http://www.minorplanet.info/MPB/issues/MPB_45-3.pdf
>
>    ...and gotten interesting results.  I'd have liked to see
> the light curve from this bright object as it went through
> the shadow,  and to have compared observed photometry to
> computed magnitudes from Find_Orb.
>
> -- Bill
>
>
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