For information on field definitions see Guide to Hipparcos Double & Multiple Systems Annex fields (pdf)
Field Value Field Description DO1 : 28360 Hipparcos Catalogue (HIP) identifier DO2 : 3.9600 Orbital period, P (days) DO3 : 7438.6500 Time of periastron passage, T (days from JD2,440,000.0) DO4 : -0.54 Semi-major axis of photocentre orbit, a_0 (mas) DO5 : 0.0000 Eccentricity, e DO6 : 0.00 Argument of periastron, omega (deg) DO7 : 76.00 Inclination, i (deg) DO8 : 115.40 Position angle of the node, Omega (deg) DO9 : Standard error of P (days) DO10 : Standard error of T (days) DO11 : 0.76 Standard error of a_0 (mas) DO12 : Standard error of e DO13 : Standard error of omega (deg) DO14 : Standard error of i (deg) DO15 : Standard error of Omega (deg) DO16 : 57 Reference to the literature for the orbital parameters DO17 : Flag indicating a note at the end of relevant volume DOM1 : 111110010000 Status flags for the 12 astrometric and orbital parameters taken DOM2: 66 correlation coefficients in a non-linear coding 474 583 402 571 577 459 577 434 475 532 450 450 450 450 450 450 450 450 450 450 450 433 592 356 495 481 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 450 ORBPARLIT O16|3|4|DOM5 57|2|1|C.A.Hummel, J.T.Armstrong, D.F.Buscher, D.Mozurkewich, A.Quirrenbach, 57|2|2|W.Vivekanand, Astron.J., 110, 376, 1995. HGNOTES HDNOTES HPNOTES