Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1216+640 (2026a, independent mode)

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

Right ascension: 184.7940962884414°
Declination: 63.7363105984890°
No. sessions: 5
No. delays: 478
Defining: No
RMS(α cos δ) = 0.2434 mas
RMS(δ) = 0.5663 mas
Variability ellipse semimajor axis = 0.5709 mas
Variability ellipse semiminor axis = 0.2324 mas
Variability ellipse position angle = -7.9 deg
Equivalent α-δ correlation = -0.27

Observed in only 5 session(s)

Quarterly time series for 1216+640 (2026a, 4 global solutions)

Data

Right ascension: 184.7940962238660°
Declination: 63.7363105534320°
No. sessions: 7
No. delays: 576
Defining: No
RMS(α cos δ) = 0.2623 mas
RMS(δ) = 0.2534 mas
Variability ellipse semimajor axis = 0.3037 mas
Variability ellipse semiminor axis = 0.2020 mas
Variability ellipse position angle = -47.5 deg
Equivalent α-δ correlation = -0.39

Observed in only 7 session(s)