Information for Cosmic Shear Keck fields, 12-13 August 2002

Richard MASSEY
PhD student at IoA

Sunset at LST 17:15. Sunrise at LST 01:52.
Please MAlign & re-focus before the run!
Please observe within 20^o of zenith. A postscript map is available, and the table below lists when fields can be observed, in Sidereal Time. Another object co-ordinate list has been suitably formatted for input into Keck.
R filter (or how about two colours?).
PA varies (the direction of the long axis is indicated in the table).
3x200s dithers on each field
(differences are from base posⁿ and in real arcseconds, not RA&Dec)

[+0" ,+0" ]
[+3.54",+3.54"]
[+4.83",-1.29"] ...just an equilateral triangle with 5" sides.
Need photometric standards, bias frames and sky flats.
Dome flats would be a bonus if you have chance, please. On ESI in the past they have proved much better than the sky flats.

Field Positions & Finding Charts^*

	R.A.	Dec	P.A.	Local Sidereal Time Within 20^o of zenith	Must START observing between	AKA
Beginning of night
D001 Finding chart^*	17 13 40.0	38 39 19.0	90^o (E-W)	LST 16:41-17:45	before LST 17:32	wht16 + ESI
D002 Finding chart^*	17 19 38.0	31 48 14.3	0^o (N-S)	LST 16:06-18:32	before LST 18:32	wht45a + ESI
D003 Finding chart^*	17 43 30.0	41 16 16.0	0^o (N-S)	within 22^o of zenith LST 17:20-18:03	LST 17:20-17:50	wht52b + ESI
Middle of night
D004 Finding chart^*	22 12 20.0	09 56 30.0	0^o (N-S)	LST 21:00-23:25	LST 21:00-23:12	wht267
D005 Finding chart^*	22 43 49.0	10 20 30.0	0^o (N-S)	LST 21:30-23:55	LST 21:30-23:42	wht263
D006 Finding chart^*	22 57 14.0	09 57 59.0	0^o (N-S)	LST 21:44-00:10	LST 21:44-23:58	wht294
End of night
D007 Finding chart^*	00 14 27.0	03 54 50.0	0^o (N-S)	LST 23:33-01:05	LST 23:33-00:52	wht272
D008 Finding chart^*	02 03 09.3	11 30 20.0	90^o (E-W)	LST 00:43-03:23	after LST 00:43	wht0
D009 Finding chart^*	01 14 39.0	10 58 40.0	0^o (N-S)	LST 00:00-02:29	after LST 00:00

^*North is up & East is left. A border of 1' is included, all around. Coordinates given are the field centres.

A target list formatted to Keck specifications is available here.

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