Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1954+513 (2026b, independent mode)

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

Right ascension: 298.9280761087822°
Declination: 51.5301517089411°
No. sessions: 139
No. delays: 8648
Defining: No
RMS(α cos δ) = 1.7105 mas
RMS(δ) = 1.1005 mas
Variability ellipse semimajor axis = 1.8352 mas
Variability ellipse semiminor axis = 0.8768 mas
Variability ellipse position angle = -65.6 deg
Equivalent α-δ correlation = -0.52

Quarterly time series for 1954+513 (2026b, 4 global solutions)

Data

Right ascension: 298.9280761144798°
Declination: 51.5301516945132°
No. sessions: 132
No. delays: 8723
Defining: No
RMS(α cos δ) = 0.2983 mas
RMS(δ) = 0.2558 mas
Variability ellipse semimajor axis = 0.3344 mas
Variability ellipse semiminor axis = 0.2063 mas
Variability ellipse position angle = -54.9 deg
Equivalent α-δ correlation = -0.43