Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1257+145 (2026b, independent mode)

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

Right ascension: 195.0871623385177°
Declination: 14.2884809760851°
No. sessions: 39
No. delays: 1227
Defining: No
RMS(α cos δ) = 8.5108 mas
RMS(δ) = 1.6200 mas
Variability ellipse semimajor axis = 8.6104 mas
Variability ellipse semiminor axis = 0.9585 mas
Variability ellipse position angle = -81.2 deg
Equivalent α-δ correlation = -0.80

Observed in only 39 session(s)

Quarterly time series for 1257+145 (2026b, 4 global solutions)

Data

Right ascension: 195.0871617704167°
Declination: 14.2884810448816°
No. sessions: 35
No. delays: 1215
Defining: No
RMS(α cos δ) = 0.3143 mas
RMS(δ) = 0.4398 mas
Variability ellipse semimajor axis = 0.4409 mas
Variability ellipse semiminor axis = 0.3127 mas
Variability ellipse position angle = 5.8 deg
Equivalent α-δ correlation = 0.07

Observed in only 35 session(s)