Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1520+319 (2026b, independent mode)

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

Right ascension: 230.5416322515119°
Declination: 31.7373282729109°
No. sessions: 391
No. delays: 14978
Defining: Yes
RMS(α cos δ) = 4.0166 mas
RMS(δ) = 4.6493 mas
Variability ellipse semimajor axis = 5.9881 mas
Variability ellipse semiminor axis = 1.3756 mas
Variability ellipse position angle = -40.3 deg
Equivalent α-δ correlation = -0.90

Quarterly time series for 1520+319 (2026b, 4 global solutions)

Data

Right ascension: 230.5416322340417°
Declination: 31.7373283130222°
No. sessions: 355
No. delays: 14826
Defining: Yes
RMS(α cos δ) = 0.1727 mas
RMS(δ) = 0.1815 mas
Variability ellipse semimajor axis = 0.1861 mas
Variability ellipse semiminor axis = 0.1677 mas
Variability ellipse position angle = -30.7 deg
Equivalent α-δ correlation = -0.09