Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1331+170 (2026b, independent mode)

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

Right ascension: 203.3990969129420°
Declination: 16.8177791568937°
No. sessions: 7
No. delays: 659
Defining: No
RMS(α cos δ) = 38.5493 mas
RMS(δ) = 49.3789 mas
Variability ellipse semimajor axis = 67.0569 mas
Variability ellipse semiminor axis = 23.9227 mas
Variability ellipse position angle = -39.5 deg
Equivalent α-δ correlation = -1.31

Observed in only 7 session(s)

Quarterly time series for 1331+170 (2026b, 4 global solutions)

Data

Right ascension: 203.3990943126794°
Declination: 16.8177817948033°
No. sessions: 7
No. delays: 659
Defining: No
RMS(α cos δ) = 0.1342 mas
RMS(δ) = 0.3771 mas
Variability ellipse semimajor axis = 0.3872 mas
Variability ellipse semiminor axis = 0.1016 mas
Variability ellipse position angle = 13.5 deg
Equivalent α-δ correlation = 0.63

Observed in only 7 session(s)