Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1216+487 (2026b, independent mode)

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

Right ascension: 184.7767279537796°
Declination: 48.4989346864336°
No. sessions: 33
No. delays: 1592
Defining: No
RMS(α cos δ) = 1.9563 mas
RMS(δ) = 0.6890 mas
Variability ellipse semimajor axis = 1.9974 mas
Variability ellipse semiminor axis = 0.5586 mas
Variability ellipse position angle = 77.8 deg
Equivalent α-δ correlation = 0.56

Observed in only 33 session(s)

Quarterly time series for 1216+487 (2026b, 4 global solutions)

Data

Right ascension: 184.7767281341285°
Declination: 48.4989346688702°
No. sessions: 32
No. delays: 1589
Defining: No
RMS(α cos δ) = 0.1478 mas
RMS(δ) = 0.2106 mas
Variability ellipse semimajor axis = 0.2107 mas
Variability ellipse semiminor axis = 0.1477 mas
Variability ellipse position angle = 1.7 deg
Equivalent α-δ correlation = 0.02

Observed in only 32 session(s)