Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1821-525 (2026b, independent mode)

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

Right ascension: 276.3075384099041°
Declination: -52.5161897105283°
No. sessions: 3
No. delays: 54
Defining: No
RMS(α cos δ) = 1.8741 mas
RMS(δ) = 1.8991 mas
Variability ellipse semimajor axis = 2.5889 mas
Variability ellipse semiminor axis = 0.6455 mas
Variability ellipse position angle = -44.5 deg
Equivalent α-δ correlation = -0.88

Observed in only 3 session(s)

Quarterly time series for 1821-525 (2026b, 4 global solutions)

Data

Right ascension: 276.3075392424770°
Declination: -52.5161896285245°
No. sessions: 3
No. delays: 54
Defining: No
RMS(α cos δ) = 0.2231 mas
RMS(δ) = 0.1066 mas
Variability ellipse semimajor axis = 0.2407 mas
Variability ellipse semiminor axis = 0.0566 mas
Variability ellipse position angle = -67.2 deg
Equivalent α-δ correlation = -0.82

Observed in only 3 session(s)