From: Javier Mendez Alvarez (jma@ing.iac.es)
Date: Fri May 10 2002 - 07:47:20 PDT
Hi Rob,
Thanks for your message. Yes, I will be observing at TNG tonight and the
next two nights. I will do your list and follow your guidelines.
Cheers,
Javier.
> TNG TARGETS FRIDAY MAY 10 -- Version 1.0
>
> This is preliminary, and may be updated again today. The "Version"
> number above will be bumped if this happens.
>
> Javier, are you the observer? If so, could you please acknolwedge
> receipt of this?
>
> Assumptions: night begins at 22:20 GDT, LMST 11:23
> night ends at 5:55 GDT, LMST 18:59
> ==> ~7.5 hours available
> "GDT" is local time....
>
> Some of this data will hopefully be used as confirmation data to help us
> decide what to do at Keck. If possible, right after you take the data
> please ftp it to
>
> brahms.phy.vanderbilt.edu
>
> Put it in directory
>
> /incoming/tng/2002may10
>
> (There are also directories 2002may11 and 2002may12 for the next two
> nights.)
>
> Candidates are listed in the order they should be done; I've assumed a
> ~2 minute overhead per image. Let me know if this is vastly wrong. The
> "Prio" at the end can be used as a guide of which to skip if you fall
> behind schedule. *Higher* numbers are *better* candidates, i.e. make
> sure you do the 5's. I've chosen exposure times assuming ~1-1.1" seeing
> and based it on the sky and zeropoint measurements we have from last
> year's TNG images.
>
> The number of exposures and the time of each exposure is listed for each
> candidate. Please dither between exposures by 10-20", and where there
> are more than 2 exposures please use a dither pattern that won't repeat
> a position for any candidate. NOTE -- if the time listed is too long
> (will bring the sky to well more than half well depth), reduce exposure
> times to (say) 600s and increase the number of exposures accordingly.
>
> Please get R and I twilight and dome flats, and (during the day) zeros.
> Also please do standard stars in twilight. Let me know if you want some
> standard star coordinates.
>
> NOTE : Magnitudes are based on the search. For S02-xxx candidates, some
> of the magnitudes are estimates based on AB magnitudes (with ~0.5
> subtracted to convert to a Vega-mag), and sometimes even that zeropoint
> isn't well known. Treat them with caution. The magnitudes for the
> other candidates will hopefully have some bearing on reality. These
> magnitudes are for informational purposes only; I've already taken them
> into account when choosing the exposure times.
>
> Candidate RA(2000) Dec(2000) Time R(s) Time I(s) Prio Mag (band)
> ===========================================================================
> S02-058 13:23:37.3 +27:45:05.1 3x900 5x900 5 ~23 (I)
>
> S02-064 13:24:06.3 +27:42:10.0 2x600 3x900 4 ~22.4 (I)
>
> T02-037 15:46:57.0 +08:12:36.6 2x300 3x600 5 22.3 (R)
>
> T02-028 15:36:25.5 +09:28:18.2 2x600 3x600 5 22.8 (R)
>
> T02-030 15:43:24.4 +07:53:57.8 4x900 --- 4 23.3 (R)
>
> T02-029 15:37:07.5 +09:36:18.7 2x300 3x300 4 21.3 (R)
>
> T02-047 15:36:29.9 +09:38:42.9 3x600 --- 3 22.9 (R)
>
> -Rob
>
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