Paris Observatory Geodetic VLBI Center

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

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

Right ascension: 195.1518280635539°
Declination: 8.4674621936325°
No. sessions: 7
No. delays: 658
Defining: No
RMS(α cos δ) = 0.4212 mas
RMS(δ) = 1.2354 mas
Variability ellipse semimajor axis = 1.2386 mas
Variability ellipse semiminor axis = 0.4117 mas
Variability ellipse position angle = -4.3 deg
Equivalent α-δ correlation = -0.20

Observed in only 7 session(s)

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

Data

Right ascension: 195.1518281218556°
Declination: 8.4674621722823°
No. sessions: 7
No. delays: 658
Defining: No
RMS(α cos δ) = 0.0752 mas
RMS(δ) = 0.2442 mas
Variability ellipse semimajor axis = 0.2496 mas
Variability ellipse semiminor axis = 0.0549 mas
Variability ellipse position angle = -12.1 deg
Equivalent α-δ correlation = -0.67

Observed in only 7 session(s)