Table 1
Observing log.
| Target | Start (UTC) | ncycle a×nexp b×nDIT c | DITd [s] | ΔRA [mas] | ΔDec [mas] | Airmass | Seeing [″] | τ0e [ms] | IWVf [mm] |
|---|---|---|---|---|---|---|---|---|---|
| Night of 8–9 November 2022 | |||||||||
| Planet | 05:02:41 | 2 × 4 × 6 | 10 | 280 | 455 | 1.247 | 0.47 | 4.08 | 2.88 |
| Star | 05:16:18 | 1 × 4 × 6 | 10 | 0 | 0 | 1.220 | 0.41 | 6.14 | 3.17 |
| Planet | 05:27:08 | 3 × 4 × 6 | 10 | 280 | 455 | 1.201 | 0.40 | 7.20 | 3.14 |
| Star | 05:47:16 | 1 × 4 × 6 | 10 | 0 | 0 | 1.172 | 0.46 | 5.13 | 3.05 |
| Planet | 05:59:15 | 3 × 4 × 6 | 10 | 280 | 455 | 1.157 | 0.45 | 5.27 | 2.98 |
| Star | 06:20:38 | 1 × 4 × 6 | 10 | 0 | 0 | 1.137 | 0.38 | 6.99 | 2.80 |
| Planet | 06:34:43 | 3 × 4 × 6 | 10 | 280 | 455 | 1.128 | 0.42 | 5.59 | 2.69 |
| Star | 06:55:00 | 1 × 4 × 6 | 10 | 0 | 0 | 1.119 | 0.62 | 4.68 | 2.71 |
| Night of 3–4 February 2023 | |||||||||
| Star | 01:37:04 | 1 × 4 × 6 | 10 | 0 | 0 | 1.117 | 0.92 | 4.88 | 9.51 |
| Planet | 01:43:59 | 1 × 4 × 6 | 10 | 284 | 462 | 1.117 | 0.96 | 4.23 | 9.65 |
| Anti-planet | 01:50:54 | 1 × 4 × 6 | 10 | −284 | −462 | 1.118 | 0.82 | 4.72 | 9.90 |
| Planet | 01:57:44 | 1 × 4 × 6 | 10 | 284 | 462 | 1.120 | 0.90 | 3.98 | 9.96 |
Notes. (a)Number of beam commuting device (BCD) cycles. A MATISSE BCD cycle consists in four exposures using each of the BCD configurations (IN–IN, OUT–IN, IN–OUT, OUT–OUT). (b)Number of exposures per BCD cycle. (c)Number of frames (i.e. integrations) per exposure. (d)Detector integration time. (e)Coherence time. (f)Integrated water vapour.
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