ChaMPlane Observation with Magellan/ 6.5m/ IMACS

I. Target Fields

              ChaMPlane Magellan/IMACS Observation Target Fields
MID  Mosaic  Field      RA(J2000)   Dec(J2000)     l      b     NH(e22)
-----------------------------------------------------------------------
 30  kpno02  M116     07:37:16.19  -09:41:12.8  226.830  5.598   0.130
 59  kpno04  OH231    07:42:13.33  -14:43:57.9  231.844  4.198   0.804
 60  ctio05  PSR1046  10:47:58.55  -58:29:39.4  287.380  0.599   0.664
 31  ctio03  MSH11    11:11:58.64  -60:41:34.6  291.054 -0.136   0.639
 15  ctio01  NGC3603  11:15:52.55  -61:17:46.5  291.715 -0.523  14.958
 32  ctio03  G292     11:19:46.34  -61:40:05.4  292.282 -0.707   2.171
-----------------------------------------------------------------------

II. Masks

Mask      RA(J2000)     Dec(J2000)  setup files   mask  finding   X   b    f  Xha  b    f  Xhm  b    f   Ha   b    f   Hm   b    f  Slit
----------------------------------------------------------------------------------------------------------------------------------------
M116A    07:37:14.848 -09:40:09.96  obs obw SMF mask det jpg ps  16 18.8 24.0  1 22.2 22.2  3 18.8 22.5  31 20.3 23.0  59 17.3 23.4  106
OH231Ad  07:42:18.444 -14:44:00.68  obs obw SMF mask det jpg ps  20 17.0 24.7  1 21.4 21.4  7 17.0 20.2  11 20.3 23.5  37 19.3 22.9  68
PSR1046A 10:48:27.552 -58:32:00.51  obs obw SMF mask det jpg ps  26 16.2 23.3  1 22.0 22.0  7 16.5 19.6  10 21.1 23.4  53 17.6 23.6  89
MSH11Ad  11:11:19.392 -60:41:55.90  obs obw SMF mask det jpg ps  31 16.5 22.5  3 16.5 19.7  1 17.3 17.3  42 18.8 21.9  13 19.6 22.6  86
NGC3603Ad11:15:14.609 -61:16:57.56  obs obw SMF mask det jpg ps  42 17.0 23.8  4 18.4 22.1  4 17.0 21.7  48 17.1 22.8   4 20.7 22.2  94
G292Ad   11:19:30.490 -61:27:47.15  obs obw SMF mask det jpg ps  32 15.0 23.5  2 15.0 19.8  3 19.0 22.3  27 20.5 22.8  28 19.8 23.4  87
----------------------------------------------------------------------------------------------------------------------------------------
RA&Dec: center of the mask, telescope pointing.
X:      number of Chandra sources, priority -1.          
Xha:	number of Chandra sources with Ha emission (H-R<-0.3 & SNR>5), priority -3.
Xhm:	number of Chandra sources with Hm emission (H-R<-0.2 & SNR>3), priority -2.
Ha:	number of non-Chandra Ha emission objects (H-R<-0.3 & SNR>5),  priority  1.
Hm:	number of non-Chandra Hm emission objects (H-R<-0.2 & SNR>3),  priority  2.
b,f:	bright and faint R limit of the group.
slit:	number of slits on the mask
d:	done (observed)
All above are faint masks. Alignment stars are chosen from opt_p.rdb tables, 17 < R < 19. Mask musthave = -3

III. Exposure Sequence

1. Take images of the masks at the same binning as is intended for the
nighttime observations.  These are usually exposures of 1-2 seconds
taken with the lower-light-level quartz lamp controlled by a power
supply at the base of the telescope.

IV. Observation Plan

Astronomical twilight:  21:16 - 4:34   duration 7h18m 
Observe three mask each night:  3 x 146min = 438m = 7h18m
Using 2x2 binning saves disk space (not so important) but also readout time. 

Here is an observing almanac made for this run.

Here is the Las Campanas Observatory 2008 Ephemeris.

Ping Zhao 1/2/2008