Coordinates

RA: 18^h58^m035^s.62
DEC: +03^∘26'0010''.5
Galactic-longitude [deg]: 36.81
Galactic-latitude [deg]: -0.02
Coordinate-Reference

Binary System

Alternative Name: INTREF 953
X-ray Type: CL,XP,XT
Mean Distance [kpc]: 10.9^[1]
Distance Range [kpc]: 9.9 - 11.9^[1]

Compact Object

Orbital Period [d]: 81.0^[1]
Pulse Period [s]: 221.0^[1]
CRSF energy [keV]: 48^[1]
XMM-Newton flux [10^-12 erg cm^-2 s^-1]:0.45 (0.2-12.0 keV)
Chandra flux [10^-12 erg cm^-2 s^-1]:0.02 (0.5-7.0 keV)
INTEGRAL flux [10^-12 erg cm^-2 s^-1]:67.21 (17-60 keV)

Optical Counterpart

Counterpart: tentative
Spectral Type: K-M^[1]
J [mag]: 13.890(0.024)
H [mag]: 13.246(0.022)
K [mag]: 13.026(0.030)
W1 [mag]: 13.206(0.008)
W2 [mag]: 13.362(0.014)