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[vsnet-history 941] SN 1993J (Xu)




Date: Sun, 16 May 1993 07:51 PDT
From: ZHOUXU%BEPC2@SCS.SLAC.STANFORD.EDU
Subject: about correction of our data in your table

Dear Dr.  Taichi Kato

	Our data in your table were not all correct by "Remark #3" 
after April 23. So, I think it is easier to use our update 
date than correct old data and erase REMARK #3 in your table.

	thank you.

	With my best regard.

ZHOU Xu


 Time       U     B     V     R     I     U-B   B-V   V-R   V-I   R-I
----------------------------------------------------------------------
Apr 7.56  11.75 12.10 11.71 11.18 10.93  -.35   .39   .53   .78   .25
Apr 9.61  11.72 11.99 11.43 10.96 10.71  -.28   .56   .48   .73   .25
Apr10.58  11.64 11.76 11.32 10.85 10.62  -.13   .45   .46   .70   .23
Apr11.59  11.48 11.70 11.21 10.69 10.53  -.22   .48   .52   .69   .17
Apr12.64  11.41 11.62 11.11 10.61 10.45  -.21   .52   .50   .66   .16
Apr13.61  11.33 11.51 11.06 10.58 10.37  -.17   .45   .48   .69   .21
Apr14.62  11.31 11.46 10.96 10.45 10.28  -.15   .50   .51   .68   .17
Apr15.59  11.33 11.42 10.91 10.43 10.25  -.09   .51   .48   .66   .18
Apr16.55  11.29 11.43 10.84 10.39 10.21  -.14   .60   .45   .63   .18
Apr17.55  11.34 11.37 10.88 10.36 10.17  -.03   .49   .52   .71   .19
Apr18.57  11.38 11.46 10.85 10.37 10.17  -.08   .61   .49   .68   .19
Apr19.58  11.51 11.50 10.86 10.34 10.16   .01   .63   .52   .70   .18
Apr20.55  11.63 11.62 10.90 10.37 10.14   .01   .71   .53   .77   .23
Apr21.56  11.80 11.78 10.95 10.40 10.19   .02   .82   .55   .76   .21
Apr23.56  12.23 12.01 11.10 10.49 10.27   .22   .91   .61   .83   .22

Apr24.56  12.52 12.23 11.19 10.54 10.31   .28  1.04   .65   .88   .23
Apr25.56  12.75 12.46 11.32 10.64 10.37   .29  1.13   .68   .95   .27
Apr26.54  12.98 12.58 11.36 10.68 10.39   .41  1.22   .68   .97   .29
Apr29.54  13.54 12.84 11.61 10.87 10.59   .70  1.23   .75  1.03   .28

note:
	Before use Corwin's standards, R and I Cousin system value 
was transformed by using the formular:(Bessel,1979,PASP.91,589):

      (V-R)c=0.73(V-R)j-0.03  for (V-R)j<1.0
and   (V-I)c=0.778(V-I)j    for 0<(V-I)j<2.0


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