Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1838+249 (2026a, independent mode)

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

Right ascension: 280.0143422884956°
Declination: 24.9614479364270°
No. sessions: 8
No. delays: 649
Defining: No
RMS(α cos δ) = 16.4299 mas
RMS(δ) = 1.7459 mas
Variability ellipse semimajor axis = 16.4929 mas
Variability ellipse semiminor axis = 0.9877 mas
Variability ellipse position angle = 84.9 deg
Equivalent α-δ correlation = 0.82

Observed in only 8 session(s)

Quarterly time series for 1838+249 (2026a, 4 global solutions)

Data

Right ascension: 280.0143451203809°
Declination: 24.9614481319101°
No. sessions: 8
No. delays: 649
Defining: No
RMS(α cos δ) = 0.2271 mas
RMS(δ) = 0.3265 mas
Variability ellipse semimajor axis = 0.3575 mas
Variability ellipse semiminor axis = 0.1743 mas
Variability ellipse position angle = -27.8 deg
Equivalent α-δ correlation = -0.54

Observed in only 8 session(s)