[vsnet-obs 20206] (fwd) SN 1999aa photometry from APO

[Taichi Kato <tkato>]

From owner-vsnet-adm@kusastro.kyoto-u.ac.jp Tue Apr 20 09:11 JST 1999
Date: Mon, 19 Apr 1999 17:11:26 -0700 (PDT)
From: Kevin Krisciunas <kevin@orca.astro.washington.edu>
To: vsnet-adm@kusastro.kyoto-u.ac.jp
MIME-Version: 1.0
Subject: Submission to "vsnet-obs" rejected (fwd)  1999aa data
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I won't send you and data if you just reject it.......


       Photometry of SN 1999aa from Apache Point Observatory

Imagery by Karen Gloria and Camron Hastings at the telescope, with remote observers
Kevin Krisciunas, Gene Magnier, and Alan Diercks, and reduction by Krisciunas.

Landolt standards in the Rubin 149 field were used on five clear nights to determine
the brightness of 10 field stars near NGC 2595 so that the SN could be reduced with
respect to those stars even on non-photometric nights.

Here are the nightly means.  Julian Date is 2451000 + date given.  The last four columns
are the numbers of frames+stars used to determine the V, B-V, V-R, and V-I values, respectively.
Typically two frames were taken on a night in each filter and the SN was reduced with repect
to four of the field stars.

   JD          V     +/-     B-V    +/-     V-R    +/-     V-I    +/-

  228.5901   14.974  0.004  -0.013  0.005  -0.050  0.004  -0.255  0.004      8    8    8    8
  234.6081   14.851  0.004   0.079  0.006  -0.035  0.007  -0.436  0.005      8    8    4    8
  238.5953   14.919  0.005   0.120  0.007  -0.055  0.006  -0.539  0.007      8    8    8    8
  240.6058   14.973  0.004   0.150  0.006  -0.064  0.008  -0.537  0.006      8    8    4    8
  244.6252   15.184  0.004   0.211  0.004  -0.126  0.004  -0.568  0.004      8    8    8    8

  249.5977   15.498  0.004   0.421  0.004  -0.108  0.004  -0.377  0.004      8    8    8    8
  252.6033   15.646  0.004   0.620  0.004  -0.014  0.006  -0.175  0.004      8    8    4    8
  257.6257   15.876  0.003   0.912  0.004  ******  *****   0.160  0.004      8    8    0    8
  263.6145   16.150  0.006   1.184  0.014   0.317  0.008   0.475  0.013     11   11   12    7
  265.6119   16.267  0.005   1.150  0.010   0.347  0.005   0.575  0.006      8    8    8    8

  274.7846   16.765  0.011   1.044  0.086  ******  *****   0.537  0.013      3    3    0    4
  275.6135   16.794  0.004   1.057  0.006   0.292  0.006   0.529  0.004      8    8    4    8
  279.6524   16.932  0.004   0.997  0.005   0.269  0.004   0.468  0.005      8    8    8    8

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