Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 0657+172 (2026b, independent mode)

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

Right ascension: 105.0063569630174°
Declination: 17.1560279959313°
No. sessions: 713
No. delays: 45364
Defining: Yes
RMS(α cos δ) = 90.0559 mas
RMS(δ) = 82.4963 mas
Variability ellipse semimajor axis = 114.9457 mas
Variability ellipse semiminor axis = 41.2696 mas
Variability ellipse position angle = -48.2 deg
Equivalent α-δ correlation = -0.77

Quarterly time series for 0657+172 (2026b, 4 global solutions)

Data

Right ascension: 105.0063564150399°
Declination: 17.1560281427646°
No. sessions: 675
No. delays: 45118
Defining: Yes
RMS(α cos δ) = 0.1723 mas
RMS(δ) = 0.1738 mas
Variability ellipse semimajor axis = 0.1913 mas
Variability ellipse semiminor axis = 0.1527 mas
Variability ellipse position angle = -43.8 deg
Equivalent α-δ correlation = -0.22