Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1652+398 (2026b, independent mode)

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

Right ascension: 253.4675695194580°
Declination: 39.7601691711940°
No. sessions: 405
No. delays: 11739
Defining: No
RMS(α cos δ) = 547.8023 mas
RMS(δ) = 96.9103 mas
Variability ellipse semimajor axis = 556.2187 mas
Variability ellipse semiminor axis = 9.9832 mas
Variability ellipse position angle = 80.0 deg
Equivalent α-δ correlation = 0.99

Quarterly time series for 1652+398 (2026b, 4 global solutions)

Data

Right ascension: 253.4675695354957°
Declination: 39.7601691332806°
No. sessions: 372
No. delays: 11609
Defining: No
RMS(α cos δ) = 0.1895 mas
RMS(δ) = 0.2454 mas
Variability ellipse semimajor axis = 0.2458 mas
Variability ellipse semiminor axis = 0.1890 mas
Variability ellipse position angle = -4.7 deg
Equivalent α-δ correlation = -0.04