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Table 2.
Log of polarization observations of the lensed quasar J1004+4112 with the 6m telescope of SAO RAS.
| Date | JD-2450000 | Texp | Number | Seeing |
|---|---|---|---|---|
| (days) | (s) | of cycles | (arcsec) | |
| 2014 Nov. 23 | 6984 | 5400 | 10 | 1.8 |
| 2014 Nov. 28 | 6989 | 2880 | 8 | 1.0 |
| 2015 Dec. 10 | 7366 | 5400 | 6 | 2.0 |
| 2016 Mar. 08 | 7455 | 3600 | 6 | 1.4 |
| 2016 Apr. 05 | 7483 | 3600 | 6 | 1.8 |
| 2016 Nov. 24 | 7716 | 3600 | 6 | 1.2 |
| 2016 Dec. 21 | 7743 | 4500 | 5 | 1.5 |
| 2017 Jan. 22 | 7775 | 4500 | 5 | 1.2 |
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