Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1855+163 (2026a, independent mode)

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

Right ascension: 284.3566482323704°
Declination: 16.4155113000274°
No. sessions: 4
No. delays: 400
Defining: No
RMS(α cos δ) = 0.1766 mas
RMS(δ) = 0.2516 mas
Variability ellipse semimajor axis = 0.3020 mas
Variability ellipse semiminor axis = 0.0575 mas
Variability ellipse position angle = 34.2 deg
Equivalent α-δ correlation = 0.92

Observed in only 4 session(s)

Quarterly time series for 1855+163 (2026a, 4 global solutions)

Data

Right ascension: 284.3566482075950°
Declination: 16.4155111976335°
No. sessions: 5
No. delays: 472
Defining: No
RMS(α cos δ) = 0.0680 mas
RMS(δ) = 0.2955 mas
Variability ellipse semimajor axis = 0.2956 mas
Variability ellipse semiminor axis = 0.0676 mas
Variability ellipse position angle = 1.5 deg
Equivalent α-δ correlation = 0.11

Observed in only 5 session(s)