Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1901+155 (2026b, independent mode)

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

Right ascension: 286.0598380704889°
Declination: 15.6106810120023°
No. sessions: 15
No. delays: 322
Defining: No
RMS(α cos δ) = 0.5161 mas
RMS(δ) = 0.7834 mas
Variability ellipse semimajor axis = 0.9643 mas
Variability ellipse semiminor axis = 0.2232 mas
Variability ellipse position angle = -34.6 deg
Equivalent α-δ correlation = -1.13

Observed in only 15 session(s)

Quarterly time series for 1901+155 (2026b, 4 global solutions)

Data

Right ascension: 286.0598380579149°
Declination: 15.6106809066529°
No. sessions: 8
No. delays: 301
Defining: No
RMS(α cos δ) = 0.2091 mas
RMS(δ) = 0.3191 mas
Variability ellipse semimajor axis = 0.3270 mas
Variability ellipse semiminor axis = 0.1965 mas
Variability ellipse position angle = -15.8 deg
Equivalent α-δ correlation = -0.27

Observed in only 8 session(s)