Table 1
Details of the observations presented in this work.
| Telescope | Date | Start/End times | N obs | t exp | Filter | Airmass | Moon | Aperture | Scatter | PSF | β |
|
|
|||||||||||
| Kuiper | 2009 10 22 | 04:03 → 09:10 | 1083 | 5 | Cousins I | 1.00 → 1.9 | 25% | 10, 20, 25 | 1.54 | ||
| Loiano | 2009 11 12 | 16:52 → 22:09 | 103 | 118 | Gunn r | 1.02 → 1.01 → 1.55 | 23% | 25, 45, 60 | 1.15 | 1963 | 1.4 |
| INT | 2010 08 28 | 20:44 → 04:02 | 131 | 140 | Strömgren y | 2.04 → 1.00 → 1.18 | 84% | 45, 65, 90 | 0.47 | 3217 | 1.7 |
| Loiano | 2011 10 05 | 18:01 → 02:29 | 469 | 50 | Gunn i | 1.12 → 1.01 → 1.45 | 61% | 19, 40, 60 | 1.15 | 908 | 1.4 |
| CA 1.23 m | 2011 10 05 | 19:27 → 03:07 | 166 | 70 | Johnson R | 1.08 → 1.05 → 1.54 | 61% | 26, 38, 55 | 0.83 | 1662 | 1.0 |
| CA 2.2 m | 2012 08 26 | 20:31 → 04:48 | 160 | 80 | sdss u | 1.52 → 1.00 → 1.55 | 77% | 25, 55, 75 | 2.37 | 2827 | 1.0 |
| CA 2.2 m | 2012 08 26 | 20:31 → 04:48 | 157 | 80 | Gunn g | 1.52 → 1.00 → 1.55 | 77% | 30, 50, 70 | 0.97 | 2463 | 1.2 |
| CA 2.2 m | 2012 08 26 | 20:31 → 04:48 | 159 | 80 | Gunn r | 1.52 → 1.00 → 1.55 | 77% | 30, 60, 90 | 0.71 | 2642 | 1.5 |
| CA 2.2 m | 2012 08 26 | 20:31 → 04:48 | 162 | 80 | Gunn z | 1.52 → 1.00 → 1.55 | 77% | 28, 55, 80 | 0.92 | 1662 | 1.1 |
| Loiano | 2012 10 02 | 17:45 → 02:32 | 232 | 70 | Johnson I | 1.03 → 1.00 → 1.92 | 92% | 23, 40, 65 | 0.79 | 2521 | 1.0 |
| CA 1.23 m | 2012 10 02 | 20:07 → 03:35 | 373 | 50 | Johnson I | 1.11 → 1.00 → 2.16 | 92% | 35, 60, 90 | 1.69 | 2290 | 1.8 |
Notes. Nobs is the number of observations, Moon is the fractional illumination of the Moon at the midpoint of the transit, and texp is the exposure time in seconds. The aperture sizes are the radii in pixels of the software apertures for the star, inner sky and outer sky, respectively. Scatter is the rms scatter of the data versus a fitted model, in mmag. Target mean PSF area in px2 is also reported for each dataset. Times and dates are in UT. β is the ratio between the noise levels due to Poisson noise and to combined Poisson and red noise.
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