Paris Observatory Geodetic VLBI Center

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

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

Right ascension: 184.7940962550751°
Declination: 63.7363105882526°
No. sessions: 7
No. delays: 576
Defining: No
RMS(α cos δ) = 0.2583 mas
RMS(δ) = 0.5162 mas
Variability ellipse semimajor axis = 0.5222 mas
Variability ellipse semiminor axis = 0.2460 mas
Variability ellipse position angle = -9.8 deg
Equivalent α-δ correlation = -0.27

Observed in only 7 session(s)

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

Data

Right ascension: 184.7940962397774°
Declination: 63.7363105590188°
No. sessions: 7
No. delays: 576
Defining: No
RMS(α cos δ) = 0.2994 mas
RMS(δ) = 0.2518 mas
Variability ellipse semimajor axis = 0.3025 mas
Variability ellipse semiminor axis = 0.2481 mas
Variability ellipse position angle = -75.6 deg
Equivalent α-δ correlation = -0.10

Observed in only 7 session(s)