Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 0644+491 (2026b, independent mode)

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

Right ascension: 102.1963272394473°
Declination: 49.1224250920525°
No. sessions: 5
No. delays: 415
Defining: No
RMS(α cos δ) = 0.8289 mas
RMS(δ) = 0.4767 mas
Variability ellipse semimajor axis = 0.8573 mas
Variability ellipse semiminor axis = 0.4236 mas
Variability ellipse position angle = -72.9 deg
Equivalent α-δ correlation = -0.39

Observed in only 5 session(s)

Quarterly time series for 0644+491 (2026b, 4 global solutions)

Data

Right ascension: 102.1963276365368°
Declination: 49.1224247364266°
No. sessions: 5
No. delays: 415
Defining: No
RMS(α cos δ) = 0.1455 mas
RMS(δ) = 0.1352 mas
Variability ellipse semimajor axis = 0.1651 mas
Variability ellipse semiminor axis = 0.1103 mas
Variability ellipse position angle = 50.5 deg
Equivalent α-δ correlation = 0.38

Observed in only 5 session(s)