Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1656+571 (2026b, independent mode)

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

Right ascension: 254.3362874160791°
Declination: 57.0981954643993°
No. sessions: 5
No. delays: 524
Defining: No
RMS(α cos δ) = 0.2168 mas
RMS(δ) = 0.3194 mas
Variability ellipse semimajor axis = 0.3589 mas
Variability ellipse semiminor axis = 0.1420 mas
Variability ellipse position angle = -29.7 deg
Equivalent α-δ correlation = -0.68

Observed in only 5 session(s)

Quarterly time series for 1656+571 (2026b, 4 global solutions)

Data

Right ascension: 254.3362874097974°
Declination: 57.0981954994812°
No. sessions: 5
No. delays: 524
Defining: No
RMS(α cos δ) = 0.1037 mas
RMS(δ) = 0.1031 mas
Variability ellipse semimajor axis = 0.1273 mas
Variability ellipse semiminor axis = 0.0719 mas
Variability ellipse position angle = 45.3 deg
Equivalent α-δ correlation = 0.52

Observed in only 5 session(s)