[KIDS] photometric quality KiDS-ESO-DR1

[Gijs Verdoes Kleijn]

Dear Mario, Lino, Gert, Jelte and Jeffrey,

I have added principle color plots, trilegal comparison and SDSS 
comparison to the overview table:

http://wiki.astro-wise.org/projects:kids:data_deliveries:kids-eso-dr1:release_notes:photometric_calibration#overview_table

More in-depth report on it for release note is to follow soon.
For most KiDS-ESO-DR1 OBs with SDSS DR8 coverage the difference is 
within 0.05mag. If not it seems that in at least 30% of the cases it 
might well be due to the usage of the "forever zeropoint" which was 
defined in aug 2011. See extracted table from wiki:

tile 	Paranal judgment
KIDS_174.0_-1.5_i 	SA many nights earlier: 2011-08-05 06:03:48-06:05:43
KIDS_174.0_-1.5_r 	SA many nights earlier: 2011-08-09 06:29:58-06:31:13
KIDS_135.0_0.5_i 	no info
KIDS_179.0_-1.5_i 	no info and SA date unknown
KIDS_177.0_-1.5_u 	SA many nights earlier: 2011-08-05 05:51:32-05:56:32
KIDS_129.0_-0.5_g 	photometric
KIDS_131.4_2.5_i 	no info
KIDS_132.4_2.5_i 	SA many nights earlier: 2011-08-05 06:03:48-06:05:43
KIDS_132.4_2.5_u 	SA many nights earlier: 2011-08-05 05:51:32-05:56:32
KIDS_185.0_0.5_u 	no info
KIDS_186.0_-0.5_u 	no info
KIDS_185.0_-0.5_g 	no info, SA date unknown
KIDS_213.0_1.5_r 	KiDS slighty non-photometric (but not indicated by 
inter-dither extinction variations)


Cheers, Gijs


Op 19-4-2013 14:08, Gijs Verdoes Kleijn schreef:
> Dear Mario, Lino, Gert, Jelte and Jeffrey,
>
> I've added the KiDS and SA field exposure timespan to the overview table:
> http://wiki.astro-wise.org/projects:kids:data_deliveries:kids-eso-dr1:release_notes:photometric_calibration#overview_table
> Gijs is making progress with principal color-color plots for stellar locus.
> Mario is making SDSS comparison and trilegal comparison.
>
> All info will be added to the overview as they come on-line.
> Mario: please send me your results once ready: then we discuss together
> how to add it to the overview.
>
> Then we should have a good overview of photometric quality.
> Best, Gijs
>
> On 04/18/2013 12:18 AM, Gijs Verdoes Kleijn wrote:
>> Dear Mario, Lino, Gert, Jelte and Jeffrey,
>>
>> I have made and inspected an overview of the photometric quality of the
>> KiDS-ESO-DR1 nights according to Paranal (available for ~80%):
>> http://wiki.astro-wise.org/projects:kids:data_deliveries:kids-eso-dr1:release_notes:photometric_calibration#overview_table
>> Conclusion: except for one KiDS OB the data seem to have been taken
>> under (almost) photometric conditions.
>>
>> As next step I will do the same check for the SA fields used for
>> KiDS-ESO-DR1.
>>
>> Feedback on this and next steps is very welcome.
>> Best wishes, Gijs
>> ps. Lino: thanks for reminding of the existence of these plots. I had
>> seen them...but forgotten about them.
>>
>>

-- 
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|dr Gijs Verdoes Kleijn         |   astronomer                     |
|e-mail: verdoes at astro.rug.nl   |   OmegaCEN / Kapteyn Institute / |
|www: www.astro.rug.nl/~verdoes |   Target                         |
|tel: +31-50-3638326            |   University of Groningen        |
|mobile: +31-654658050          |   postal address:                |
|                               |   Kapteyn Astronomical Institute |
|                               |   Postbus 800, 9700 AV, Groningen|
|                               |   The Netherlands                |
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