locked Re: #APCC APCC/APPM blocking issue with AP1100GTOAE #APCC


Dale Ghent
 

On Sep 27, 2020, at 1:29 AM, Ray Gralak <groups3@gralak.com> wrote:

Ok, so I ran these myself and they solved in 0.2 and 0.3 seconds with the G18 database. It seems that however
these images were generated, they were generated with a small enough FoV that they didn't include enough stars
that were in the G17 database.
Okay I'll try that. Thanks.

Does G17 mean the stars have a 17th magnitude limit? (PinPoint solved it with a mag 15 limit.)
Yes, that's what it means. Han has prepared a few databases for use, with the G17 one fitting most needs down to a 20 armin FoVs. If you FoV is smaller than that, he says the G18 database will be needed. He describes them as such:

* G16 COLOUR Gaia DR2 up to Johnson V-magnitude 16, containing 60 million stars, including star colour information, native 290-6 format, 346 MB, epoch 2022.

* G17 Gaia DR2 up to BP-magnitude 17, containing 105 million stars, native 290-5 format, 503 MB, epoch 2022

* G17 COLOUR Gaia DR2 up to Johnson V-magnitude 17, containing 105 million stars, including star colour information, native 290-6 format, 690 MB, epoch 2022.

* G18 Gaia DR2 up to BP-magnitude 18, containing 208 million stars, native 290-5 format, 996 MB, epoch 2022.

* Hyperleda, a very large galaxy database for deep sky annotation. 2.190.000 objects.

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