Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1531-225 (2026b, independent mode)

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

Right ascension: 233.5950052687608°
Declination: -22.7326751326528°
No. sessions: 8
No. delays: 476
Defining: No
RMS(α cos δ) = 0.8836 mas
RMS(δ) = 1.1632 mas
Variability ellipse semimajor axis = 1.2851 mas
Variability ellipse semiminor axis = 0.6944 mas
Variability ellipse position angle = 30.3 deg
Equivalent α-δ correlation = 0.50

Observed in only 8 session(s)

Quarterly time series for 1531-225 (2026b, 4 global solutions)

Data

Right ascension: 233.5950052487385°
Declination: -22.7326750267151°
No. sessions: 8
No. delays: 476
Defining: No
RMS(α cos δ) = 0.4269 mas
RMS(δ) = 0.1406 mas
Variability ellipse semimajor axis = 0.4270 mas
Variability ellipse semiminor axis = 0.1402 mas
Variability ellipse position angle = -88.5 deg
Equivalent α-δ correlation = -0.07

Observed in only 8 session(s)