Re: Peculiar Data

[Tass Mailing List <tass@mail.alembic.net>]

Date: Thu, 07 Jun 2007 18:41:12 -0500
From: Michael Sallman <msallman@pro-ns.net>
To: Tass Mailing List <tass@mail.alembic.net>
Subject: Re: Peculiar Data

Tom and Michael,

Re this star and date, I've attached the "image info" for that
particular V/I pair. Notice the zeropoints.

Take care,
Mike

Tass Mailing List wrote:
> Date: Wed, 06 Jun 2007 17:50:49 -0500
> From: Thomas F. Droege <droege@fastmail.fm>
> To: tass@tass-survey.org
> Subject: Peculiar Data
>
> Hi Everyone,
>
> I am starting to look at data.  From time to time I come across stars as
> below.  That is stars with a few bright values.  Would someone like to
> look at this star and tell me what is going on?  I have images for at
> least JD2454153, possibly others that I can make available.

> 6224679 51      80.9348 50.416  2454153.5503    V       4.47    0.077
> 0       I       8.046   0.036   0



mysql> select * from images where image_jd=2454153.55028;
+--------+-------------------+---------------+----------+-----------+------------+---------+---------+------+-----------+-----------+---------------+---------+--------+------+---------+
| id     | fits_file         | image_jd      | exposure | center_ra | center_dec | sky_val | sky_sig | fwhm | num_stars | zeropoint | color_correct | include | camera | band | quality |
+--------+-------------------+---------------+----------+-----------+------------+---------+---------+------+-----------+-----------+---------------+---------+--------+------+---------+
| 340992 | iir_41530497.fits | 2454153.55028 |     99.8 |   77.7300 | +51.9700   |    1305 |   22.73 | 3.02 |      5863 |    -6.287 |        -0.012 |       1 | i      | i    |       1 |
| 341011 | ivr_41530497.fits | 2454153.55028 |     99.8 |   77.8300 | +52.1300   |    1618 |   30.20 | 2.63 |      3199 |     3.128 |        -0.142 |       1 | i      | v    |       1 |
+--------+-------------------+---------------+----------+-----------+------------+---------+---------+------+-----------+-----------+---------------+---------+--------+------+---------+
2 rows in set (0.05 sec)