Paris Observatory Geodetic VLBI Center

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

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

Right ascension: 184.7767279363906°
Declination: 48.4989346841620°
No. sessions: 33
No. delays: 1859
Defining: No
RMS(α cos δ) = 1.1368 mas
RMS(δ) = 0.3946 mas
Variability ellipse semimajor axis = 1.1574 mas
Variability ellipse semiminor axis = 0.3293 mas
Variability ellipse position angle = 78.6 deg
Equivalent α-δ correlation = 0.53

Observed in only 33 session(s)

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

Data

Right ascension: 184.7767281281492°
Declination: 48.4989346718034°
No. sessions: 31
No. delays: 1570
Defining: No
RMS(α cos δ) = 0.1426 mas
RMS(δ) = 0.1959 mas
Variability ellipse semimajor axis = 0.1960 mas
Variability ellipse semiminor axis = 0.1426 mas
Variability ellipse position angle = 1.4 deg
Equivalent α-δ correlation = 0.02

Observed in only 31 session(s)