High-precision polarimetry of nearby stars (d < 50 pc) - Mapping the interstellar dust and magnetic field inside the Local Bubble

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Table 3

Instrumental polarization of the UH88 telescope in the B, V, and R passbands, in units of 10⁻⁶ (ppm), for the observing runs in 2014–2016.

JD interval	q_{t B}	u_{t B}	q_{t V}	u_tV	q_tR	u_tR
2456818–6825	180	−231	57	−112	24	−74
2456849–6857	198	−258	43	−118	16	−72
2457284–7291	189	−247	48	−131	35	−86
2457413–7420	187	−252	64	−121	41	−82
2457431–7446	199	−227	57	−111	37	−76
2457556–7568	199	−243	53	−127	36	−84
2457645–7657	182	−251	55	−138	34	−91
2457671–7681	191	−238	56	−130	34	−99

Notes. The standard errors are in the range 2–4 ppm for each run.

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