Paris Observatory Geodetic VLBI Center

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

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

Right ascension: 195.1718624022572°
Declination: 50.4935459909625°
No. sessions: 6
No. delays: 619
Defining: No
RMS(α cos δ) = 0.8994 mas
RMS(δ) = 0.2819 mas
Variability ellipse semimajor axis = 0.9029 mas
Variability ellipse semiminor axis = 0.2707 mas
Variability ellipse position angle = -84.7 deg
Equivalent α-δ correlation = -0.27

Observed in only 6 session(s)

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

Data

Right ascension: 195.1718627376066°
Declination: 50.4935459619898°
No. sessions: 6
No. delays: 619
Defining: No
RMS(α cos δ) = 0.1439 mas
RMS(δ) = 0.1641 mas
Variability ellipse semimajor axis = 0.1846 mas
Variability ellipse semiminor axis = 0.1165 mas
Variability ellipse position angle = -36.2 deg
Equivalent α-δ correlation = -0.41

Observed in only 6 session(s)