Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1231+507 (2026a, independent mode)

Data - BVID - NED - MOJAVE - SIMBAD - PanSTARRS-1

Right ascension: 188.4552766606239°
Declination: 50.4396604345063°
No. sessions: 6
No. delays: 422
Defining: No
RMS(α cos δ) = 3.7574 mas
RMS(δ) = 1.5870 mas
Variability ellipse semimajor axis = 4.0046 mas
Variability ellipse semiminor axis = 0.7743 mas
Variability ellipse position angle = 69.3 deg
Equivalent α-δ correlation = 0.85

Observed in only 6 session(s)

Quarterly time series for 1231+507 (2026a, 4 global solutions)

Data

Right ascension: 188.4552772753685°
Declination: 50.4396605693051°
No. sessions: 6
No. delays: 422
Defining: No
RMS(α cos δ) = 0.2986 mas
RMS(δ) = 0.5080 mas
Variability ellipse semimajor axis = 0.5161 mas
Variability ellipse semiminor axis = 0.2845 mas
Variability ellipse position angle = -12.1 deg
Equivalent α-δ correlation = -0.25

Observed in only 6 session(s)