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Table 1

Observing log.

ESO archive observation name Setting Plate Exp. time Airmass DIMM seeing DIMM seeing
s at beginning at end

GIRAF.2007-11-04T00:40:07.005.fits H627.3 Medusa1 3600.0 1.55 0.99 1.01
GIRAF.2007-11-04T01:49:01.718.fits H627.3 Medusa2 3600.0 1.23 1.00 1.01
GIRAF.2007-11-04T02:49:58.015.fits H627.3 Medusa2 3600.0 1.09 1.01 1.14
GIRAF.2007-11-04T03:51:40.705.fits H627.3 Medusa2 3600.0 1.03 1.12 1.58
GIRAF.2007-11-04T05:02:04.385.fits H627.3 Medusa1 3600.0 1.02 1.50 2.12
GIRAF.2007-11-04T06:02:57.430.fits H627.3 Medusa1 3600.0 1.09 2.12 2.85
GIRAF.2007-11-04T07:14:09.603.fits H651.5A Medusa2 4500.0 1.26 2.34 2.45
GIRAF.2007-11-05T00:49:54.336.fits H651.5A Medusa1 3600.0 1.47 0.81 0.83
GIRAF.2007-11-05T01:50:47.003.fits H651.5A Medusa1 3600.0 1.22 0.83 0.93
GIRAF.2007-11-05T03:00:33.829.fits H651.5A Medusa2 3600.0 1.07 0.85 0.79
GIRAF.2007-11-05T04:01:27.485.fits H651.5A Medusa2 3600.0 1.02 0.79 1.18
GIRAF.2007-11-05T05:02:20.450.fits H651.5A Medusa2 3600.0 1.03 1.18 1.08
GIRAF.2007-11-05T06:12:43.418.fits H548.8 Medusa1 4500.0 1.11 1.14 1.19
GIRAF.2007-11-05T07:28:38.583.fits H548.8 Medusa1 5000.0 1.33 1.19 1.44
GIRAF.2007-11-06T00:53:24.560.fits H548.8 Medusa1 4500.0 1.43 0.96 1.23
GIRAF.2007-11-06T02:09:20.617.fits H548.8 Medusa1 4500.0 1.16 1.23 1.08
GIRAF.2007-11-06T03:33:24.494.fits H548.8 Medusa2 4500.0 1.03 1.40 1.57
GIRAF.2007-11-06T04:49:19.582.fits H548.8 Medusa2 4500.0 1.02 1.57 1.71
GIRAF.2007-11-06T06:13:39.929.fits H627.3 Medusa1 4500.0 1.12 1.59 1.19
GIRAF.2007-11-06T07:29:33.117.fits H627.3 Medusa1 4500.0 1.35 1.19 0.98

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