Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1218+384 (2026a, independent mode)

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

Right ascension: 185.2467887644418°
Declination: 38.1488074992417°
No. sessions: 5
No. delays: 425
Defining: No
RMS(α cos δ) = 0.1924 mas
RMS(δ) = 0.4330 mas
Variability ellipse semimajor axis = 0.4555 mas
Variability ellipse semiminor axis = 0.1305 mas
Variability ellipse position angle = 18.9 deg
Equivalent α-δ correlation = 0.70

Observed in only 5 session(s)

Quarterly time series for 1218+384 (2026a, 4 global solutions)

Data

Right ascension: 185.2467887659651°
Declination: 38.1488074813051°
No. sessions: 5
No. delays: 425
Defining: No
RMS(α cos δ) = 0.0844 mas
RMS(δ) = 0.1845 mas
Variability ellipse semimajor axis = 0.2003 mas
Variability ellipse semiminor axis = 0.0326 mas
Variability ellipse position angle = -23.2 deg
Equivalent α-δ correlation = -0.91

Observed in only 5 session(s)