Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1646+042 (2026b, independent mode)

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

Right ascension: 252.3653310459244°
Declination: 4.2011078791046°
No. sessions: 7
No. delays: 546
Defining: No
RMS(α cos δ) = 0.3133 mas
RMS(δ) = 0.5942 mas
Variability ellipse semimajor axis = 0.6322 mas
Variability ellipse semiminor axis = 0.2268 mas
Variability ellipse position angle = 21.4 deg
Equivalent α-δ correlation = 0.64

Observed in only 7 session(s)

Quarterly time series for 1646+042 (2026b, 4 global solutions)

Data

Right ascension: 252.3653310303600°
Declination: 4.2011077059376°
No. sessions: 7
No. delays: 546
Defining: No
RMS(α cos δ) = 0.1125 mas
RMS(δ) = 0.1493 mas
Variability ellipse semimajor axis = 0.1533 mas
Variability ellipse semiminor axis = 0.1069 mas
Variability ellipse position angle = 18.5 deg
Equivalent α-δ correlation = 0.22

Observed in only 7 session(s)