Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1218+444 (2026b, independent mode)

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

Right ascension: 185.3626859256999°
Declination: 44.1915756132671°
No. sessions: 8
No. delays: 1143
Defining: No
RMS(α cos δ) = 0.4297 mas
RMS(δ) = 0.2670 mas
Variability ellipse semimajor axis = 0.4370 mas
Variability ellipse semiminor axis = 0.2550 mas
Variability ellipse position angle = -77.0 deg
Equivalent α-δ correlation = -0.24

Observed in only 8 session(s)

Quarterly time series for 1218+444 (2026b, 4 global solutions)

Data

Right ascension: 185.3626859875577°
Declination: 44.1915756529414°
No. sessions: 8
No. delays: 1143
Defining: No
RMS(α cos δ) = 0.1453 mas
RMS(δ) = 0.1445 mas
Variability ellipse semimajor axis = 0.1467 mas
Variability ellipse semiminor axis = 0.1431 mas
Variability ellipse position angle = 51.3 deg
Equivalent α-δ correlation = 0.02

Observed in only 8 session(s)