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Table 1.

Observation log. LMXB and HMXB correspond to low-mass and high-mass X-ray binaries, respectively.

Source Type Compact Orbital Distance Inclination Observation date
object period (d) (kpc) (°)
Cir X-1 HMXB/LMXB?(1) NS(2) 16.6(3) 9.4(4) ≲70(5) 23 Oct. 2016 17:26–18:45
Sco X-1 LMXB(6) NS(6) 0.79(7) 2.8(8) ≳40(9) 25 Oct. 2016 16:50–17:38
GRS 1915+105 LMXB(10) BH(11) 33.8(12) 8.6(13) 66 ± 2(11) 25 Oct. 2016 17:41–18:23
GX 13+1 LMXB(14) NS(14) 24.5(15) 7(16) ≲70(17) 05 Nov. 2016 22:46–23:27
Cyg X-1 HMXB(18) BH(19) 5.6(20) 2.22(21) 27.1 ± 0.8(19) 06 Nov. 2016 21:02–22:02
29 Nov. 2016 20:39–21:40

Notes. NS and BH indicate the nature of the compact object in the X-ray binary, neutron star or black hole, respectively. We note that Cyg X-1 had to be observed on two different days to reach the requested sensitivity.

(5)

From the presence of dips in its light curve (Clarkson et al. 2004);

(17)

From the presence of dips in its light curve (Díaz Trigo et al. 2012; Iaria et al. 2014);

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