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

[Bill Gray]

Hi Peter,  all,

    Sorry... figured it out shortly after sending those messages.

    Please ignore this object.  The follow-up observations must
be of something else;  the original ATLAS data lines up passably
well with a bit of space junk.  I expect it'll be off as 'not a
minor planet' shortly.

-- Bill

On 4/6/21 8:10 PM, Peter Birtwhistle wrote:
> 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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>