Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1218+339 (2026b, independent mode)

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

Right ascension: 185.1411466711725°
Declination: 33.7200077768209°
No. sessions: 9
No. delays: 752
Defining: No
RMS(α cos δ) = 10.8531 mas
RMS(δ) = 0.5204 mas
Variability ellipse semimajor axis = 10.8544 mas
Variability ellipse semiminor axis = 0.4911 mas
Variability ellipse position angle = -89.0 deg
Equivalent α-δ correlation = -0.33

Observed in only 9 session(s)

Quarterly time series for 1218+339 (2026b, 4 global solutions)

Data

Right ascension: 185.1411480286937°
Declination: 33.7200077118938°
No. sessions: 9
No. delays: 752
Defining: No
RMS(α cos δ) = 0.3331 mas
RMS(δ) = 0.4580 mas
Variability ellipse semimajor axis = 0.4948 mas
Variability ellipse semiminor axis = 0.2755 mas
Variability ellipse position angle = -27.0 deg
Equivalent α-δ correlation = -0.45

Observed in only 9 session(s)