Paris Observatory Geodetic VLBI Center

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

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

Right ascension: 102.1963272394585°
Declination: 49.1224250921268°
No. sessions: 5
No. delays: 415
Defining: No
RMS(α cos δ) = 0.8298 mas
RMS(δ) = 0.4763 mas
Variability ellipse semimajor axis = 0.8576 mas
Variability ellipse semiminor axis = 0.4241 mas
Variability ellipse position angle = -73.0 deg
Equivalent α-δ correlation = -0.39

Observed in only 5 session(s)

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

Data

Right ascension: 102.1963275433088°
Declination: 49.1224247358582°
No. sessions: 5
No. delays: 415
Defining: No
RMS(α cos δ) = 0.0902 mas
RMS(δ) = 0.1354 mas
Variability ellipse semimajor axis = 0.1567 mas
Variability ellipse semiminor axis = 0.0437 mas
Variability ellipse position angle = 31.6 deg
Equivalent α-δ correlation = 0.83

Observed in only 5 session(s)