Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1646+217 (2026b, independent mode)

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

Right ascension: 252.0711221544709°
Declination: 21.6849752823146°
No. sessions: 8
No. delays: 317
Defining: No
RMS(α cos δ) = 2.8330 mas
RMS(δ) = 0.9009 mas
Variability ellipse semimajor axis = 2.8342 mas
Variability ellipse semiminor axis = 0.8970 mas
Variability ellipse position angle = -88.2 deg
Equivalent α-δ correlation = -0.09

Observed in only 8 session(s)

Quarterly time series for 1646+217 (2026b, 4 global solutions)

Data

Right ascension: 252.0711217242867°
Declination: 21.6849751508320°
No. sessions: 8
No. delays: 317
Defining: No
RMS(α cos δ) = 0.3874 mas
RMS(δ) = 1.0461 mas
Variability ellipse semimajor axis = 1.1018 mas
Variability ellipse semiminor axis = 0.1746 mas
Variability ellipse position angle = -18.5 deg
Equivalent α-δ correlation = -0.88

Observed in only 8 session(s)