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Table 1

Log of the FORS observations of RS Pup.

UT date (2009) MJD φ ρ(″) AM α(°)

RS Pup
1 04/04 23:54:55 54 925.997 0.1540 1.33 1.02 0.0
2 05/04 00:00:49 54 926.001 0.1541 1.23 1.02 22.5
3 05/04 00:06:44 54 926.005 0.1542 1.06 1.02 45.0
4 05/04 00:12:39 54 926.008 0.1543 1.05 1.02 67.5
5 05/04 00:18:54 54 926.013 0.1544 1.05 1.02 0.0
6 05/04 00:24:49 54 926.017 0.1545 0.97 1.02 22.5
7 05/04 00:30:44 54 926.021 0.1546 1.15 1.02 45.0
8 05/04 00:36:39 54 926.026 0.1547 1.07 1.03 67.5
9 26/04 23:49:08 54 947.992 0.6848 1.28 1.06 0.0
10 26/04 23:55:41 54 947.997 0.6849 1.45 1.07 22.5
11 27/04 00:00:33 54 948.000 0.6850 1.89 1.07 45.0
12 26/05 23:16:53 54 977.970 0.4082 0.98 1.24 0.0
13 26/05 23:22:46 54 977.974 0.4083 0.73 1.26 22.5
14 26/05 23:28:39 54 977.978 0.4084 0.69 1.28 45.0
15 26/05 23:34:32 54 977.982 0.4085 0.80 1.30 67.5
16 26/05 23:40:48 54 977.987 0.4086 0.90 1.32 0.0
17 26/05 23:46:42 54 977.991 0.4087 0.73 1.35 22.5
18 26/05 23:52:36 54 977.995 0.4088 0.70 1.38 45.0
19 26/05 23:58:29 54 977.999 0.4089 0.73 1.40 67.5

Alphard
20 26/05 23:59:12 54 977.999 0.72 1.41 67.5
21 27/05 00:13:59 54 978.010 0.87 1.26 0.0
22 27/05 00:15:29 54 978.011 0.83 1.27 22.5
23 27/05 00:16:59 54 978.012 0.77 1.27 45.0
24 27/05 00:18:29 54 978.013 0.79 1.28 67.5
25 27/05 00:20:21 54 978.014 0.75 1.29 0.0
26 27/05 00:21:51 54 978.015 0.78 1.29 22.5
27 27/05 00:23:21 54 978.016 0.83 1.30 45.0
28 27/05 00:24:51 54 978.017 0.73 1.30 67.5

Notes. MJD is the average modified julian date of the exposures, and α is the position angle of the HWP. The seeing ρ in the visible measured by the observatory DIMM is also listed, as well as the observation airmass (AM).

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