Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1806+456 (2026b, independent mode)

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

Right ascension: 272.0912125154744°
Declination: 45.7058087656415°
No. sessions: 548
No. delays: 45850
Defining: No
RMS(α cos δ) = 770.0447 mas
RMS(δ) = 784.4558 mas
Variability ellipse semimajor axis = 1047.5481 mas
Variability ellipse semiminor axis = 333.1406 mas
Variability ellipse position angle = 44.3 deg
Equivalent α-δ correlation = 0.82

Quarterly time series for 1806+456 (2026b, 4 global solutions)

Data

Right ascension: 272.0911912249060°
Declination: 45.7057962224808°
No. sessions: 529
No. delays: 45744
Defining: No
RMS(α cos δ) = 0.1282 mas
RMS(δ) = 0.1775 mas
Variability ellipse semimajor axis = 0.1775 mas
Variability ellipse semiminor axis = 0.1282 mas
Variability ellipse position angle = 1.1 deg
Equivalent α-δ correlation = 0.01