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Table 3
Observations log.
| Obs. Date | Telesc/instrum | Mode | Grating/ | Wavelength | Slit | Pl. scale | Disp. | Res. | Exp. | Airmass | Seeing |
|---|---|---|---|---|---|---|---|---|---|---|---|
| filter | range [μm] | [′′] | [′′ pix−1] | [Å pix−1] | power | time | [′′] | ||||
| USco1621 A | |||||||||||
| 22 Mar 2019 | Keck-I/OSIRIS | AO | Kp | 1.96–2.27 | – | 0.01 | – | – | 150 × 1.475s | 1.5–1.6 | 1.0 |
| USco1621 B | |||||||||||
| 14 Jun 2005 | UKIRT/WFCAM | Img | Z, Y, J | – | – | 0.4 | – | – | 20s,20s,5s | 1.6 | 1.8 |
| 14 Mar 2011 | UKIRT/WFCAM | Img | K | – | – | 0.4 | – | – | 10s | 1.6 | 2.0 |
| 1 May 2014 | VISTA/VIRCAM | Img | J, Ks | – | – | 0.34 | – | – | 15s, 7.5s | 1.2 | 1.1 |
| 10 Apr 2017 | NTT/SofI | Spec | GR | 1.53–2.52 | 1 | 0.29 | 10.22 | 600 | 4 × 300s | 1.1–1.2 | 0.8 |
| 10 Apr 2017 | NTT/SofI | Spec | GB | 0.95–1.64 | 1 | 0.29 | 6.96 | 600 | 4 × 300s | 1.1–1.2 | 0.8 |
| 29 May 2017 | GTC/OSIRIS | Spec | R300R | 0.48–1.00 | 1 | 0.25 | 7.74 | 240 | 2 × 600s | 1.7–1.8 | 1.0 |
| 22 Mar 2019 | Keck-I/OSIRIS | AO | Kp | 1.96–2.27 | – | 0.01 | – | – | 40 × 8.851s | 1.4–1.5 | 0.9 |
| USco1556 A | |||||||||||
| 22 Mar 2019 | Keck-I/OSIRIS | AO | Kp | 1.96–2.27 | – | 0.01 | – | – | 150 × 1.475s | 1.4 | 1.0 |
| USco1556 B | |||||||||||
| 7 May 2007 | UKIRT/WFCAM | Img | H, K | – | – | 0.4 | – | – | 10s, 5s | 1.5 | 0.8 |
| 15 Jun 2010 | UKIRT/WFCAM | Img | Z | – | – | 0.4 | – | – | 20s | 1.6 | 0.9 |
| 27 Jun 2010 | UKIRT/WFCAM | Img | Y, J | – | – | 0.4 | – | – | 20s, 10s | 1.5 | 0.7 |
| 2 Apr 2011 | UKIRT/WFCAM | Img | K | – | – | 0.4 | – | – | 10s | 1.5 | 2.0 |
| 1 May 2014 | VISTA/VIRCAM | Img | J, Ks | – | – | 0.34 | – | – | 15s, 7.5s | 1.1 | 0.9 |
| 16 Jun 2018 | VLT/X-shooter | Spec | VIS | 0.55–1.02 | 1.2 | 0.158 | 0.16 | 6500 | 5 × 280s | 1.0–1.1 | 1.0 |
| 16 Jun 2018 | VLT/X-shooter | Spec | NIR | 1.02–2.48 | 1.2 | 0.248 | 0.77 | 4300 | 5 × 300s | 1.0–1.1 | 1.0 |
| 22 Mar 2019 | Keck-I/OSIRIS | AO | Kp | 1.96–2.27 | – | 0.01 | – | – | 30 × 8.851s | 1.4 | 1.0 |
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