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Table 1.

Log of the polarimetric observations of Cyg X-1.

Dates MJD Nobs Telescope
1975 Jun–1987 Oct 42572–47068 1511 PMO
2002 April–May 52381–52394 10 KVA
2002 April–May 52391–52394 4 NOT
2022 March–July 59652–59788 27 T60
2022 May 15–21 59714–59719 6 NOT

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