Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1221+464 (2026a, independent mode)

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

Right ascension: 185.9139026244758°
Declination: 46.1885005907505°
No. sessions: 6
No. delays: 541
Defining: No
RMS(α cos δ) = 0.9364 mas
RMS(δ) = 1.1820 mas
Variability ellipse semimajor axis = 1.4109 mas
Variability ellipse semiminor axis = 0.5325 mas
Variability ellipse position angle = 36.1 deg
Equivalent α-δ correlation = 0.73

Observed in only 6 session(s)

Quarterly time series for 1221+464 (2026a, 4 global solutions)

Data

Right ascension: 185.9139027669362°
Declination: 46.1885007813708°
No. sessions: 6
No. delays: 541
Defining: No
RMS(α cos δ) = 0.1804 mas
RMS(δ) = 0.2047 mas
Variability ellipse semimajor axis = 0.2271 mas
Variability ellipse semiminor axis = 0.1513 mas
Variability ellipse position angle = -35.4 deg
Equivalent α-δ correlation = -0.37

Observed in only 6 session(s)