From spencer@lowell.edu Thu Oct  5 00:17:03 1995
From spencer@lowell.edu Thu Oct  5 00:17:03 1995
From: spencer@lowell.edu (John R. Spencer)
Date: Thu, 5 Oct 1995 00:10:21 -0700
To: oleroemer@lowell.edu
Subject: Io Volcano News
Cc: spencer@lowell.edu
Content-Length: 1007
X-Lines: 21
Status: RO

The semi-automatic Io/Jupiter IRTF monitoring program (we don't
have a good name for it yet..) tonight claimed its first new
Io hot spot.  L' (3.8 micron) shift-and-add images of Io showed
a fairly bright hot spot at about 210 W, 45 N (eyeball location
only)- I don't think any known hot spot lies within the estimated
positional error (currently maybe +/- 30 degrees) of this location.

Images taken at about 4:45 UT on October 5, with NSFCAM, by
Charlie Kaminski, John Spencer, and John Stansberry.  The 
complete archive of Io and comparison star images is available
by anonymous ftp from irtf.ifa.hawaii.edu, pub/galileo/io951004.tar.Z
(for technical reasons, the archives are named for the HST
date, not the UT date).

I observed an Io eclipse and occultation by Jupiter last night
(10/4 UT) under marginal conditions- the Jupiter occultation
lightcurve will probably be good enough to judge the level
of activity at Loki and the other recent hot spots on the
Jupiter-facing hemisphere.

John Spencer.