Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1816+090 (2026b, independent mode)

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

Right ascension: 274.6669252829691°
Declination: 9.0628392304926°
No. sessions: 2
No. delays: 151
Defining: No
RMS(α cos δ) = 0.5558 mas
RMS(δ) = 0.8604 mas
Variability ellipse semimajor axis = 1.0299 mas
Variability ellipse semiminor axis = 0.1073 mas
Variability ellipse position angle = -33.1 deg
Equivalent α-δ correlation = -1.03

Observed in only 2 session(s)

Quarterly time series for 1816+090 (2026b, 4 global solutions)

Data

Right ascension: 274.6669252536235°
Declination: 9.0628391037113°
No. sessions: 2
No. delays: 151
Defining: No
RMS(α cos δ) = 0.0004 mas
RMS(δ) = 0.0921 mas
Variability ellipse semimajor axis = 0.0921 mas
Variability ellipse semiminor axis = 0.0001 mas
Variability ellipse position angle = 0.2 deg
Equivalent α-δ correlation = 0.98

Observed in only 2 session(s)