Paris Observatory Geodetic VLBI Center

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

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

Right ascension: 253.9315310809511°
Declination: 19.8130856761897°
No. sessions: 4
No. delays: 340
Defining: No
RMS(α cos δ) = 3.0746 mas
RMS(δ) = 1.2505 mas
Variability ellipse semimajor axis = 3.1592 mas
Variability ellipse semiminor axis = 1.0180 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 (2026a, 4 global solutions)

Data

Right ascension: 253.9315306646931°
Declination: 19.8130855675408°
No. sessions: 4
No. delays: 340
Defining: No
RMS(α cos δ) = 0.3044 mas
RMS(δ) = 0.3205 mas
Variability ellipse semimajor axis = 0.3247 mas
Variability ellipse semiminor axis = 0.2999 mas
Variability ellipse position angle = -24.7 deg
Equivalent α-δ correlation = -0.06

Observed in only 4 session(s)