Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1247+139 (2026b, independent mode)

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

Right ascension: 192.6175751759259°
Declination: 13.7278847405728°
No. sessions: 5
No. delays: 416
Defining: No
RMS(α cos δ) = 0.2273 mas
RMS(δ) = 0.6229 mas
Variability ellipse semimajor axis = 0.6289 mas
Variability ellipse semiminor axis = 0.2102 mas
Variability ellipse position angle = 8.3 deg
Equivalent α-δ correlation = 0.36

Observed in only 5 session(s)

Quarterly time series for 1247+139 (2026b, 4 global solutions)

Data

Right ascension: 192.6175751813119°
Declination: 13.7278846659159°
No. sessions: 5
No. delays: 416
Defining: No
RMS(α cos δ) = 0.0759 mas
RMS(δ) = 0.1828 mas
Variability ellipse semimajor axis = 0.1858 mas
Variability ellipse semiminor axis = 0.0683 mas
Variability ellipse position angle = -11.0 deg
Equivalent α-δ correlation = -0.40

Observed in only 5 session(s)