Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1257+519 (2026b, independent mode)

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

Right ascension: 194.8798912303760°
Declination: 51.6822947971906°
No. sessions: 5
No. delays: 458
Defining: No
RMS(α cos δ) = 1.0486 mas
RMS(δ) = 0.2355 mas
Variability ellipse semimajor axis = 1.0507 mas
Variability ellipse semiminor axis = 0.2260 mas
Variability ellipse position angle = 86.2 deg
Equivalent α-δ correlation = 0.27

Observed in only 5 session(s)

Quarterly time series for 1257+519 (2026b, 4 global solutions)

Data

Right ascension: 194.8798916123997°
Declination: 51.6822948077089°
No. sessions: 5
No. delays: 458
Defining: No
RMS(α cos δ) = 0.0639 mas
RMS(δ) = 0.1611 mas
Variability ellipse semimajor axis = 0.1619 mas
Variability ellipse semiminor axis = 0.0619 mas
Variability ellipse position angle = 6.0 deg
Equivalent α-δ correlation = 0.23

Observed in only 5 session(s)