Table 2.
Observing log of VLT/FORS2 MXU observations of RGB targets along the line-of-sight to the Cetus dSph.
| Field | Field center (RA, Dec) | Date/Hour | Exp. time | Airmass | DIMM Seeing | Grade⋆ | Slits |
|---|---|---|---|---|---|---|---|
| (J2000) | (UT) | (s) | (arcsec) | ||||
| Central | 00:26:10.43, –11:03:09.0 | 2012-12-11/01:11 | 2614 | 1.09 | 0.84 | A | 35 |
| 2012-12-11/01:56 | 2614 | 1.20 | 0.84 | A | |||
| 2012-12-12/00:55 | 2614 | 1.08 | 0.88 | A | |||
| 2012-12-12/01:40 | 2614 | 1.16 | 0.94 | A | |||
| 2013-08-11/06:30 | 2614 | 1.09 | 0.71 | A | |||
| 2013-08-30/04:59 | 2614 | 1.11 | 0.94 | A | |||
| NE | 00:26:30.16, –10:59:53.9 | 2013-09-06/05:45 | 2614 | 1.03 | 0.80 | A | 18 |
| 2013-09-06/06:33 | 2614 | 1.04 | 0.83 | A | |||
| 2013-09-14/02:03 | 2614 | 1.63 | 0.87 | Ca | |||
| 2013-09-14/02:48 | 2614 | 1.34 | 0.82 | B | |||
| 2013-09-14/03:33 | 2614 | 1.18 | 0.71 | B | |||
| 2013-09-30/02:14 | 2614 | 1.23 | 0.64 | A | |||
| 2013-09-30/06:56 | 2614 | 1.25 | 0.58 | A | |||
| SE | 00:26:39.71, –11:10:16.4 | 2014-09-30/02:58 | 2614 | 1.12 | 0.62 | A | 18 |
| 2014-09-30/03:42 | 2614 | 1.06 | 0.61 | A | |||
| 2014-10-02/01:18 | 2614 | 1.45 | 0.83 | B | |||
| 2014-10-02/02:06 | 2614 | 1.23 | 0.85 | B | |||
| 2014-10-02/02:52 | 2614 | 1.11 | 0.98 | B | |||
| NW | 00:25:26.11, –10:56:12.1 | 2014-10-02/03:53 | 2614 | 1.04 | 1.08 | A | 12 |
| 2014-10-02/04:38 | 2614 | 1.03 | 1.55 | A | |||
| 2014-10-29/01:48 | 2614 | 1.05 | 1.02 | B | |||
| 2014-10-29/02:34 | 1277 | 1.03 | 1.08 | Cb | |||
| 2014-11-23/02:02 | 2900 | 1.07 | 1.19 | B | |||
| 2014-11-23/02:52 | 2900 | 1.15 | 0.90 | Bc | |||
| Total | 83 | ||||||
Notes. From left to right, column names indicate: the pointing field name; the field center coordinates; observing date and starting time of the scientific exposure; the exposure time in seconds; the starting airmass; the average DIMM seeing during the exposure in arcsec; the ESO OB fulfillment grades (a full description is reported in the notes below); the number of slits/observed objects per mask. For each field, the mask design remained identical in each OB. The total number of slits (83) is reported in the last row of the table. (⋆)ESO OB fulfillment Grades: (A) Fully within constraints – OB completed; (B) Mostly within constraints, some constraint is 10% violated – OB completed; (C) Out of constraints – OB must be repeated:
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