Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1639-062 (2026b, independent mode)

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

Right ascension: 250.5090934430875°
Declination: -6.3565689026407°
No. sessions: 960
No. delays: 61430
Defining: Yes
RMS(α cos δ) = 644.9207 mas
RMS(δ) = 1545.7254 mas
Variability ellipse semimajor axis = 1553.0816 mas
Variability ellipse semiminor axis = 626.9985 mas
Variability ellipse position angle = 6.1 deg
Equivalent α-δ correlation = 0.21

Quarterly time series for 1639-062 (2026b, 4 global solutions)

Data

Right ascension: 250.5090738226345°
Declination: -6.3565819628715°
No. sessions: 938
No. delays: 61380
Defining: Yes
RMS(α cos δ) = 0.1670 mas
RMS(δ) = 0.1360 mas
Variability ellipse semimajor axis = 0.1674 mas
Variability ellipse semiminor axis = 0.1355 mas
Variability ellipse position angle = -83.2 deg
Equivalent α-δ correlation = -0.05