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Table 3
VLT/NACO, VLT/SINFONI, archival KeckII/NIRC2, and Calar Alto/2.2 m/AstraLux observation log.
| Instrument | JD-2 455 000 | Date of | DIT | NDIT | # | Airmass | DIMMa | τ 0 b | Strehl | S/N | ||
| [ days ] | observation | [s] | images | Seeing | [ms] | [%] | (brightest pixel) | |||||
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| NACO J | 1264.69416 | 03 Dec. 2012 | 15 | 4 | 15 | 1.13 | 0.8 | 3.7 | 3.2 | 5.9 | ||
| NACO H | 1264.70764 | 03 Dec. 2012 | 15 | 4 | 15 | 1.12 | 0.6 | 4.6 | 11.2 | 24.6 | ||
| NACO Ks | 1264.72079 | 03 Dec. 2012 | 15 | 4 | 15 | 1.11 | 0.7 | 4.6 | 23.7 | 11.1 | ||
| NACO J | 1266.72899 | 05 Dec. 2012 | 30 | 2 | 15 | 1.12 | 1.3 | 2.8 | 2.0 | 6.6 | ||
| SINFONI H + K | 1592.82609 | 27 Oct. 2013 | 300 | 2 | 3 | 1.12 | 0.5 | 5.0 |  15 |
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| NIRC2 H | 465.05374 | 25 Sep. 2010 | 3 | 10 | 12 | 1.25 | 0.4 | 7.0 | 7.8 | |||
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| AstraLux z′ | 2260.6696 | 26 Aug. 2015 | 0.02945 | 1 | 70 000 | 1.73 | 1.1 | no AO | non-detection | |||
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