Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1258+507 (2026b, independent mode)

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

Right ascension: 195.1718624022545°
Declination: 50.4935459902917°
No. sessions: 6
No. delays: 619
Defining: No
RMS(α cos δ) = 0.9002 mas
RMS(δ) = 0.2817 mas
Variability ellipse semimajor axis = 0.9034 mas
Variability ellipse semiminor axis = 0.2711 mas
Variability ellipse position angle = -84.9 deg
Equivalent α-δ correlation = -0.26

Observed in only 6 session(s)

Quarterly time series for 1258+507 (2026b, 4 global solutions)

Data

Right ascension: 195.1718627338854°
Declination: 50.4935459698704°
No. sessions: 6
No. delays: 619
Defining: No
RMS(α cos δ) = 0.1206 mas
RMS(δ) = 0.1691 mas
Variability ellipse semimajor axis = 0.1728 mas
Variability ellipse semiminor axis = 0.1153 mas
Variability ellipse position angle = -15.9 deg
Equivalent α-δ correlation = -0.21

Observed in only 6 session(s)