Re: Flags in Tom's data

[Stupendous Man <richmond@a188-l009.rit.edu>]

  John asked:

> Could someone point me towards where the flags in Tom's photometric data
> are identified/listed please?

  If you look in the HTML document describing the Mark IV pipeline,
in the section on "Detecting and Measuring Stars",

             http://spiff.rit.edu/tass/pipeline/pipeline.html#detect

you will find this description:

> The "quality flag" is a bit-wise OR combination of several flags. 
> 
>           0          no problems with star
>           1          star may be saturated
>           2          star is close to a bad region
>           4          star is close to an edge of the image
> 
> In this context, "close to" means "within an aperture radius of". 
> In the example above, star 1 is possibly saturated, while
> star 3 is both possibly saturated and close to a bad region. 


                                             Michael