Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1653+198 (2026b, independent mode)

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

Right ascension: 253.9315310809226°
Declination: 19.8130856760975°
No. sessions: 4
No. delays: 340
Defining: No
RMS(α cos δ) = 3.0743 mas
RMS(δ) = 1.2491 mas
Variability ellipse semimajor axis = 3.1587 mas
Variability ellipse semiminor axis = 1.0170 mas
Variability ellipse position angle = -75.9 deg
Equivalent α-δ correlation = -0.55

Observed in only 4 session(s)

Quarterly time series for 1653+198 (2026b, 4 global solutions)

Data

Right ascension: 253.9315306657713°
Declination: 19.8130855802984°
No. sessions: 4
No. delays: 340
Defining: No
RMS(α cos δ) = 0.3243 mas
RMS(δ) = 0.3388 mas
Variability ellipse semimajor axis = 0.3412 mas
Variability ellipse semiminor axis = 0.3218 mas
Variability ellipse position angle = -21.0 deg
Equivalent α-δ correlation = -0.04

Observed in only 4 session(s)