Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1957+406 (2026b, independent mode)

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

Right ascension: 299.8681511126307°
Declination: 40.7339158733200°
No. sessions: 6
No. delays: 299
Defining: No
RMS(α cos δ) = 8.1598 mas
RMS(δ) = 0.5866 mas
Variability ellipse semimajor axis = 8.1628 mas
Variability ellipse semiminor axis = 0.5435 mas
Variability ellipse position angle = 88.4 deg
Equivalent α-δ correlation = 0.38

Observed in only 6 session(s)

Quarterly time series for 1957+406 (2026b, 4 global solutions)

Data

Right ascension: 299.8681525500471°
Declination: 40.7339158836735°
No. sessions: 6
No. delays: 299
Defining: No
RMS(α cos δ) = 0.3903 mas
RMS(δ) = 0.2474 mas
Variability ellipse semimajor axis = 0.3918 mas
Variability ellipse semiminor axis = 0.2451 mas
Variability ellipse position angle = 83.7 deg
Equivalent α-δ correlation = 0.11

Observed in only 6 session(s)