From: Robert A. Knop Jr. (robert.a.knop@vanderbilt.edu)
Date: Fri May 31 2002 - 12:07:52 PDT
WIYN MAY 31 VERSION 3.0
NRL and Quimiby, please acknowledge receipt of this.
Here's the list of things to observe at WIYN. Candidates are listed in
the order I think they ought to be done, but feel free to mix-n-match.
What's different from 2.0:
* the z=0.22 SN (T02-029) should be done in V and R, *NOT* in I.
* We're back to doing T02-047; we do *not* want to do any of the
CFHT candidates, we currently believe, and we're hoping to get
a FORS spectrum of T02-047 soon.
Priority key:
A -- we have a spectrum and are following; highest priority to get
a measurement for stretch purposes.
B -- we have a spectrum, data for stretch less necessary.
C -- no spectrum, but has been followed photometrically
D -- ignore this candidate; why did Rob list it?
d -- ltcv going down as of WIYN May 17
d! -- ltcv well after max as of WIYN May 17
m -- ltcv near or just after max as of WIYN May 17
??? -- ltcv doesn't make sense; possible errors in fastltcv program?
or possible errors in TNG data? (Rob: check seeings, xforms)
(Lightcurve information about T02-029 and S02-058 will hopefully come
in later.)
Mag is a weak-ass magnitude estimate from the May 17 data; typically
they will be down <~1 mag now. (These magnitudes are hopefully more
"real" than the discovery magnitude estimates, as they do attempt to put
in an aperture correction.)
As we're getting later in the lightcurve, "on-color" observations are of
primary importance to maximize our ability to measure a stretch.
Sunset: 19:31 MST
Twilight: 21:05 MST
Twilight: 3:43 MST (6:40 of night; moonrise 0:16 MST)
Sunrise: 5:17 MST
(Fields get to airmasses of >=2 by morning; press on. I've put the
brightest candidate at the end and bumped its exposure time.)
Candidate z RA(2000) Dec(2000) Time R(s) Time I(s) Prio Mag
==============================================================================
S02-064 .56 13:25:46.6 +27:34:20.9 4x900 B,d! ~24? (I)
S02-058 13:23:37.3 +27:45:05.1 --- --- D (max ~23) (I)
T02-030 .51 15:43:24.4 +07:53:57.8 3x600 4x600 A,??? 21.9? (R)
T02-028 .44 15:36:25.5 +09:28:18.2 4x900 A,d 23.0 (R)
T02-037 .49 15:46:57.0 +08:12:36.6 3x600 3x900 A,m 22.0 (R)
T02-047 15:36:29.9 +09:38:42.9 4x600 C,m 21.8 (R)
T02-029 .22 15:37:07.5 +09:36:18.7 2x400 V=3x600 B,m/d 20.8 (R)
NOTE NOT I
-Rob
-- --Prof. Robert Knop Department of Physics & Astronomy, Vanderbilt University robert.a.knop@vanderbilt.edu
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