1)
From sonneborn%fornax.DECNET@cfa.HARVARD.EDU Mon Apr  5 18:01:12 1993
Subject: SN 1993J DATA
Status: RO

David,

I just send you 4 SWP low dispersion spectra.  I owe you several LWP also.
The problem with the earlier files has been fixed.  I am also sending you a copy 
of the observing log; please let me know which spectra you have and which you 
don't (note that I don't yet have copies of Vilspa data after April 1), and, 
yes, the log does not say which image was acquired at which station.  Maybe it 
would be simpler to tell me which images you DO have, and I will fill in the 
blanks as they are available.

George

2)
From sonneborn%fornax.DECNET@cfa.harvard.edu Mon Apr 12 10:44:19 1993
Subject: SN spectra
Status: R

David,

I will send you some more ascii files later today.  I also have a tape of the
US and Vilspa observations which I will put in the mail.

George

3)
From sonneborn%fornax.DECNET@cfa.HARVARD.EDU Wed Aug 11 17:59:02 1993
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Date: Wed, 11 Aug 93 17:56:36 -0400
From: sonneborn%fornax.DECNET@cfa.HARVARD.EDU (George Sonneborn, GSFC Code 681, 301/286-3665)
To: jeffery%cfa.DECNET@cfa.HARVARD.EDU, kirshner%cfa.DECNET@cfa.HARVARD.EDU
Cc: SONNEBORN@cfa.HARVARD.EDU
Subject: 93J data
Status: RO

David and Bob,

I am following this memo with several ascii files of SN 1993J data.  The 
observations go through May 18, but I have not finished reducing the data after 
April 30.

The LWP exposures with expo times longer than about 45-60 minutes are affected 
by scattered sunlight longward of 2800-2900A.  I have made a preliminary 
correction for this in the LWP ascii files I am sending.  We can  talk about the 
details of this when ever you want.  I would be careful about publishing these 
corrected spectra without additional analysis.  The longer the wavelength the 
chancier the data quality and flux accuracy.  I am very interested in seeing a 
comparison of the IUE and HST spectra to help refine the correction algorithm!

If the Space Shuttle launches tomorrow (Thursday) then I will leave immediately 
for 7-8 days in Hanger AM at the beautiful Cape Canaveral Air Force Station in 
Florida for ORFEUS instrument operations, so my response via e-mail may be 
slower than usual.

George

4)
From sonneborn%fornax.DECNET@cfa.HARVARD.EDU Sat Aug 14 18:41:45 1993
Subject: missing data
Status: RO

David,

Thanks for the HST and optical spectrum from Alex.

I just sent you all the IUE spectra you listed except LWP 25264, which I have 
not yet received from Vilspa.

George