Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1758+388 (2026b, independent mode)

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

Right ascension: 270.1031890053702°
Declination: 38.8085270901887°
No. sessions: 288
No. delays: 13791
Defining: Yes
RMS(α cos δ) = 1.0095 mas
RMS(δ) = 3.9734 mas
Variability ellipse semimajor axis = 3.9743 mas
Variability ellipse semiminor axis = 1.0058 mas
Variability ellipse position angle = -1.2 deg
Equivalent α-δ correlation = -0.08

Quarterly time series for 1758+388 (2026b, 4 global solutions)

Data

Right ascension: 270.1031890200488°
Declination: 38.8085270646636°
No. sessions: 279
No. delays: 13755
Defining: Yes
RMS(α cos δ) = 0.1610 mas
RMS(δ) = 0.1782 mas
Variability ellipse semimajor axis = 0.1866 mas
Variability ellipse semiminor axis = 0.1512 mas
Variability ellipse position angle = -30.2 deg
Equivalent α-δ correlation = -0.18