Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1538+477 (2026b, independent mode)

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

Right ascension: 234.8950433005857°
Declination: 47.5920179231683°
No. sessions: 9
No. delays: 294
Defining: No
RMS(α cos δ) = 0.8382 mas
RMS(δ) = 1.2523 mas
Variability ellipse semimajor axis = 1.4186 mas
Variability ellipse semiminor axis = 0.5082 mas
Variability ellipse position angle = -30.2 deg
Equivalent α-δ correlation = -0.73

Observed in only 9 session(s)

Quarterly time series for 1538+477 (2026b, 4 global solutions)

Data

Right ascension: 234.8950433168943°
Declination: 47.5920178383557°
No. sessions: 9
No. delays: 294
Defining: No
RMS(α cos δ) = 0.4605 mas
RMS(δ) = 0.4665 mas
Variability ellipse semimajor axis = 0.4847 mas
Variability ellipse semiminor axis = 0.4413 mas
Variability ellipse position angle = 41.0 deg
Equivalent α-δ correlation = 0.09

Observed in only 9 session(s)