Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1258+087 (2026a, independent mode)

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

Right ascension: 195.1518281008770°
Declination: 8.4674621687778°
No. sessions: 6
No. delays: 539
Defining: No
RMS(α cos δ) = 0.5054 mas
RMS(δ) = 1.6129 mas
Variability ellipse semimajor axis = 1.6153 mas
Variability ellipse semiminor axis = 0.4975 mas
Variability ellipse position angle = -3.3 deg
Equivalent α-δ correlation = -0.17

Observed in only 6 session(s)

Quarterly time series for 1258+087 (2026a, 4 global solutions)

Data

Right ascension: 195.1518281362140°
Declination: 8.4674621499157°
No. sessions: 6
No. delays: 539
Defining: No
RMS(α cos δ) = 0.0924 mas
RMS(δ) = 0.2574 mas
Variability ellipse semimajor axis = 0.2606 mas
Variability ellipse semiminor axis = 0.0829 mas
Variability ellipse position angle = -9.4 deg
Equivalent α-δ correlation = -0.42

Observed in only 6 session(s)