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Table 2

Summary of all SPHERE observations of HD 95086 in the K1K2 (IRDIS) and YJH bands (IFS), as well as the mean observational conditions when available.

Epoch Instr. Filter Coronagraph Satellite spots NDIT × DIT number × s Nexp ∆π (°) є (″) τ0 (ms) Sr (%) Airmass
2015-02-03 IFS YJH N_ALC_YJH_S No 1 × 64 26 22.4 – – – 1.41
2015-02-03 IRDIS DB K12 N_ALC_YJH_S No 1 × 16 26 22.4 – – – 1.41
2015-05-05 IFS YJH N_ALC_YJH_S No 4 × 64 13 18.2 0.79 2.1 75 1.40
2015-05-05 IRDIS DB K12 N_ALC_YJH_S No 4 × 64 13 18.2 0.45 2.1 75 1.40
2015-05-12 IFS YJH N_ALC_YJH_S No 4 × 64 No 22.5 1.07 3.0 – 1.41
2015-05-12 IRDIS DB H23 N_ALC_YJH_S No 4 × 64 No 22.5 1.07 3.0 – 1.41
2016-01-18 IFS YJH N_ALC_YJH_S No 5 × 64 19 28.1 0.33 1.8 81 1.41
2016-01-18 IRDIS DB K12 N_ALC_YJH_S No 5 × 64 19 28.1 0.33 1.8 81 1.41
2016-05-31 IFS YJH N_ALC_Ks Yes 10 × 64 7 25.2 0.64 3.4 61 1.43
2016-05-31 IRDIS DB K12 N_ALC_Ks Yes 10 × 64 7 25.2 0.64 3.4 61 1.43
2017-05-03 IFS YJH N_ALC_Ks No 7 × 12 No 2.1 2.15 1.6 47 1.40
2017-05-03 IRDIS DB K12 N_ALC_Ks No 7 × 12 No 2.1 2.15 1.6 47 1.40
2017-05-10 IFS YJH N_ALC_Ks Yes 10 × 64 7 36.6 0.89 3.3 73 1.40
2017-05-10 IRDIS DB K12 N_ALC_Ks Yes 10 × 64 7 36.6 0.89 3.3 73 1.40
2018-01-06 IFS YJH N_ALC_Ks Yes 10 × 96 7 41.0 0.30 10.1 83 1.40
2018-01-06 IRDIS DB K12 N_ALC_Ks Yes 10 × 96 7 41.0 0.30 10.1 83 1.40
2018-02-24 IFS YJH N_ALC_Ks No 4 × 96 16 33.4 0.38 9.0 – 1.41
2018-02-24 IRDIS DB K12 N_ALC_Ks No 4 × 96 16 33.4 0.38 9.0 – 1.41
2018-03-28 IFS YJH N_ALC_YJH_S No 4 × 96 16 33.3 0.51 9.3 82 1.41
2018-03-28 IRDIS DB K12 N_ALC_YJH_S No 4 × 96 16 33.3 0.51 9.3 82 1.41
2019-04-13 IFS YJH N_ALC_YJH_S Yes 9 × 96 16 33.8 0.76 3.0 70 1.42
2019-04-13 IRDIS DB K12 N_ALC_YJH_S Yes 9 × 96 16 33.8 0.76 3.0 70 1.42
2019-05-18 IFS YJH N_ALC_YJH_S No 4 × 96 16. 33.8 0.63 3.2 72 1.42
2019-05-18 IRDIS DB K12 N_ALC_YJH_S No 4 × 96 16 33.8 0.63 3.2 72 1.42

Notes. NDIT represents the number of frames in the data cube, DIT the exposure time for one frame, Nexp the number of cubes, ∆π the variation of the parallactic angle, є the seeing (at λ = 550 nm), τ0 the atmospheric coherence time, and SR the Strehl ratio after the AO correction.

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