Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1554+185 (2026b, independent mode)

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

Right ascension: 239.2284016693072°
Declination: 18.4204382003014°
No. sessions: 5
No. delays: 311
Defining: No
RMS(α cos δ) = 0.6435 mas
RMS(δ) = 1.8215 mas
Variability ellipse semimajor axis = 1.8242 mas
Variability ellipse semiminor axis = 0.6358 mas
Variability ellipse position angle = 3.3 deg
Equivalent α-δ correlation = 0.14

Observed in only 5 session(s)

Quarterly time series for 1554+185 (2026b, 4 global solutions)

Data

Right ascension: 239.2284016142270°
Declination: 18.4204381039957°
No. sessions: 5
No. delays: 311
Defining: No
RMS(α cos δ) = 0.2556 mas
RMS(δ) = 0.5992 mas
Variability ellipse semimajor axis = 0.6470 mas
Variability ellipse semiminor axis = 0.0761 mas
Variability ellipse position angle = -22.3 deg
Equivalent α-δ correlation = -0.95

Observed in only 5 session(s)