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Date: Thu, 8 Apr 93 16:18:27 CDT
From: gfl@ast1.spa.umn.edu (Geoff Lawrence)
Subject: SN1993J IR Obs.
G.F. Lawrence and A. Paulson obtained J,H and K photometry of SN1993J on
April 3.39 1993 at the University of Minnesota 0.76 m telescope using an
InSb photometer. Standard IR photometric techniques were employed with a
27 arcsec beamsize and a 44 arcsec north/south throw. Calibration was
against the IRTF standard stars HR 3888 and HR 5447. The magnitudes,
corrected for air mass, are:
April 3.39 1993 J 10.91 +/- 0.05
H 10.66 +/- 0.05
K 10.48 +/- 0.08
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