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Table B.1

Log of the SPHERE/IRDIS observations of WR104 and two PSF calibrators (4Sgr and TYC 6295-803-1).

No. Star MJD Filter DIT(s) × NDIT Dither × NEXP ΣDIT(s) Seeing (″) SR
1 WR104 57512.278 CntH, FeII 0.837 × 5 4 × 4 × 3 200.85 0.39 0.82
4Sgr 57512.299 CntH, FeII 0.837 × 5 4 × 4 × 3 200.85 0.56 0.92
2 WR104 57524.125 H2, H3, H4 0.837 × 7 4 × 4 × 2 187.5 1.13 0.73
4Sgr 57524.144 H2, H3, H4 0.837 × 7 4 × 4 × 2 187.5 1.2 0.78
3 WR104 57590.050 HeI, CntJ, CntK2, CO 0.837 × 6 4 × 4 × 3 241.02 0.45 0.87
TYC 6295-803-1 57590.09 CntJ, CntK2 0.837 × 5 4 × 4 × 3 200.88 0.44 0.87

Notes. DIT is Detector Integration Time, NDIT the number of frames per exposure, NEXP the number of exposures for one observation, and SR the estimated Strehl ratio achieved by the AO system in the H band.

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