Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1644-291 (2026b, independent mode)

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

Right ascension: 251.9911444031173°
Declination: -29.2123486291678°
No. sessions: 6
No. delays: 343
Defining: No
RMS(α cos δ) = 0.9163 mas
RMS(δ) = 0.4557 mas
Variability ellipse semimajor axis = 0.9330 mas
Variability ellipse semiminor axis = 0.4204 mas
Variability ellipse position angle = -77.8 deg
Equivalent α-δ correlation = -0.34

Observed in only 6 session(s)

Quarterly time series for 1644-291 (2026b, 4 global solutions)

Data

Right ascension: 251.9911445631397°
Declination: -29.2123485750673°
No. sessions: 6
No. delays: 343
Defining: No
RMS(α cos δ) = 0.2890 mas
RMS(δ) = 0.4142 mas
Variability ellipse semimajor axis = 0.4167 mas
Variability ellipse semiminor axis = 0.2853 mas
Variability ellipse position angle = 8.6 deg
Equivalent α-δ correlation = 0.11

Observed in only 6 session(s)