Table 1
Log of SPHERE observations between Aug. 2014 and Oct. 2017.
| Date UT | Prog. ID | Filter | Fov rotation | DIT | Nexp | Texp | DIMM seeing | τ0 | TN |
|---|---|---|---|---|---|---|---|---|---|
| (°) | (s) | (s) | (″) | (ms) | (°) | ||||
| 2014-08-10 | 060.A-9249 | IRDIS - BB_J | 77 | 16 | 160 | 2560 | 1.27 ± 0.14 | 2.0 | − 1.72 |
| 2015-05-30 | 095.C-0298 | IRDIS - H2H3 | 118 | 32 | 160 | 5120 | 0.74 ± 0.14 | 1.8 | − 1.71 |
| 2015-05-30 | 095.C-0298 | IFS - YJ | 118 | 32 | 160 | 5120 | 0.74 ± 0.14 | 1.8 | − 1.71 |
| 2015-06-27 | 095.C-0298 | IRDIS - K1K2 | 49 | 4 | 689 | 2756 | 0.64 ± 0.07 | 3.6 | − 1.77 |
| 2015-06-27 | 095.C-0298 | IFS - YH | 118 | 64 | 64 | 4096 | 0.64 ± 0.07 | 3.6 | − 1.77 |
| 2015-09-30 | 095.C-0298 | IRDIS - K1K2 | 106 | 8 | 640 | 5120 | 0.54 ± 0.06 | 2.8 | − 1.81 |
| 2015-09-30 | 095.C-0298 | IFS - YH | 106 | 16 | 320 | 5120 | 0.54 ± 0.06 | 2.8 | − 1.81 |
| 2015-10-06 | 096.C-0625 | IRDIS - BB_J | 128 | 2 | 1992 | 3984 | 1.43 ± 0.34 | 1.4 | − 1.70 |
| 2015-10-31 | 096.C-0625 | IRDIS DPI - BB_J | 0 | 16 | 379 | 6064 | 1.26 ± 0.06 | 1.2 | − 1.70 |
| 2016-05-21 | 097.C-0865 | IRDIS - K1K2 | 86 | 16 | 188 | 3008 | 1.46 ± 0.29 | 2.5 | − 1.68 |
| 2016-05-21 | 097.C-0865 | IFS - YH | 86 | 64 | 50 | 3200 | 1.46 ± 0.29 | 2.5 | − 1.68 |
| 2016-06-04 | 097.C-0813 | IRDIS - BB_J | 114 | 16 | 160 | 2560 | 0.83 ± 0.15 | 2.4 | − 1.72 |
| 2017-05-20 | 598.C-0359 | IRDIS - BB_H | 125 | 16 | 352 | 5632 | 0.64 ± 0.06 | 4.4 | − 1.75 |
| 2017-05-20 | 598.C-0359 | IFS - YJ | 125 | 64 | 96 | 6144 | 0.64 ± 0.06 | 4.4 | − 1.75 |
| 2017-06-20 | 598.C-0359 | IRDIS DPI - BB_J | 0 | 16 | 728 | 11648 | 0.50 ± 0.17 | 5.9 | − 1.75 |
| 2017-10-07 | 598.C-0359 | IRDIS - BB_H | 124 | 16 | 352 | 5632 | 0.84 ± 0.27 | 4.1 | − 1.75 |
| 2017-10-07 | 598.C-0359 | IFS - YJ | 124 | 64 | 96 | 6144 | 0.84 ± 0.27 | 4.1 | − 1.75 |
Notes. The table indicates (left to right columns): the date of observations in UT, the ID of the ESO program, the filters combination, the amount of field rotation in degree, the individual exposure time (DIT) in second, the total number of exposures, the total exposure time in second, the DIMM seeing measured in arcsecond, the correlation time τ0 in millisecond, and the True North (TN) offset in degree.
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