Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1830+074 (2026b, independent mode)

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

Right ascension: 278.1749545427314°
Declination: 7.5319796149370°
No. sessions: 5
No. delays: 505
Defining: No
RMS(α cos δ) = 0.2322 mas
RMS(δ) = 0.3741 mas
Variability ellipse semimajor axis = 0.3849 mas
Variability ellipse semiminor axis = 0.2137 mas
Variability ellipse position angle = 16.4 deg
Equivalent α-δ correlation = 0.32

Observed in only 5 session(s)

Quarterly time series for 1830+074 (2026b, 4 global solutions)

Data

Right ascension: 278.1749545181108°
Declination: 7.5319795822420°
No. sessions: 5
No. delays: 505
Defining: No
RMS(α cos δ) = 0.0976 mas
RMS(δ) = 0.1769 mas
Variability ellipse semimajor axis = 0.1804 mas
Variability ellipse semiminor axis = 0.0912 mas
Variability ellipse position angle = -12.9 deg
Equivalent α-δ correlation = -0.31

Observed in only 5 session(s)