From enrico@athena Mon Aug 25 06:16 EDT 1997

dear David,

I do not know of nebular photometry for 81b or 90n, but I can send you
the photometry for 86G. here it is

ciao
Enrico

Bmax on May 11\pm1 (JD...561.50).  Therefore explosion on JD...543.50
by the 18-d rule.

  ______________________________________________________
  Date    UT     JD      U      B      V      BmV    UmB    Source
END:
   10.60   13.23 12.50 10.00 10.00     2
   12.09   13.03 11.95  1.08 10.00     1
   12.99   12.86 11.89  0.97  0.68     1
   13.13   12.78 11.94  0.84 10.00     1
   14.06   12.71 11.74  0.97 10.00     1
   14.10   12.86 11.88 10.00 10.00     2
   14.50   12.72 11.71 10.00 10.00     2
   15.08   12.65 11.67  0.98 10.00     1
   15.50   12.57 11.58 10.00 10.00     2
   16.14   12.53 11.58  0.95 10.00     1
   17.10   12.41 11.53  0.88 10.00     1
   18.09   12.51 11.48  1.03  0.77     1
   18.50   12.50 11.40 10.00 10.00     2
   19.07   12.57 11.44  1.13 10.00     1
   23.02   12.83 11.52  1.31  1.15     1
   23.04   12.86 11.63  1.23 10.00     1
   24.01   12.97 11.59  1.38  1.17     1
   27.03   13.38 11.82  1.56  1.19     1
   31.25   13.96 12.18  1.78  1.29     1
   32.02   14.09 12.25  1.84  1.30     1
   37.19   14.60 12.66  1.94 10.00     1
   41.05   14.94 13.02  1.92 10.00     1
   42.07   15.06 13.12  1.94 10.00     1
   49.07   15.39 13.47  1.92 10.00     1
   50.05   15.37 13.52  1.85  1.09     1
   63.50   15.78  0.00 10.00 10.00     2
   67.98   15.72 14.15  1.57 10.00     1
   69.98   15.76 14.20  1.56 10.00     1
   71.97   15.80 14.26  1.54 10.00     1
   80.01   16.02 14.53  1.49 10.00     1
   96.05   16.32 14.99  1.33 10.00     1
  119.03   16.65 15.63  1.02 10.00     1
  134.00   16.97 16.07  0.90 10.00     1
  152.50   17.33 16.55 10.00 10.00     2
  421.00   19.80  0.00 10.00 10.00     3   The B may be bad.