Subject: GRB980613, observations on La Palma, coordinate with APO?
From: Alan Diercks
Submitted: Sat, 13 Jun 1998 10:28:48 -0700
Message number: 6
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Hi,
I got a call this morning from Jan V. Paradjis of the Dutch GRB group.
They are going to try for observations of the GRB980613 field in
from La Palma starting in a few hours. They will be imaging in I-band.
There is no more DD over-ride time available but I wanted to pass on
this information to both of the groups with telescope time tonight.
This might be a good opportunity to try to locate the OT based on
comparison of La Palma data and APO data. The object is better
observed during the first half of the night.
At the moment, JVP is going to keep me up to date on what they find and
where their data will be available. I will pass on anything I learn
to the list here but if the observers on the telescope tonight are
definitely going to go after this one I'll let the Dutch group know
so that you can get info directly from them.
I would be happy to help with doing difference imaging between the La
Palma images and any APO data you get if that is your preference.
-Alan
*** Hourly airmass for GRB980613 ***
Epoch 2000.00: RA 10 17 45.6, dec 71 29 56
Epoch 1998.45: RA 10 17 38.1, dec 71 30 24
At midnight: UT date 1998 Jun 13, Moon 0.90 illum, 123 degr from obj
Local UT LMST HA secz par.angl. SunAlt MoonAlt
21 00 3 00 13 22 3 04 1.431 122.3 -9.4 ...
22 00 4 00 14 22 4 04 1.556 106.2 ... ...
23 00 5 00 15 22 5 04 1.731 91.4 ... 5.9
0 00 6 00 16 22 6 05 1.968 77.4 ... 16.5
1 00 7 00 17 22 7 05 2.277 64.0 ... 25.8
2 00 8 00 18 22 8 05 2.665 50.9 ... 33.3
3 00 9 00 19 23 9 05 3.117 37.9 ... 38.0
4 00 10 00 20 23 10 05 3.577 24.9 ... 39.2
5 00 11 00 21 23 11 05 3.932 11.9 -10.5 36.6
--
Alan Diercks Mail address while in Washington:
Office: (206) 543-9373 University of Washington
Lab: (206) 616-2960 Dept. of Astronomy
Fax: (206) 685-0403 Box 351580
Seattle, WA 98195-1580
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