Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1851+609 (2026b, independent mode)

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

Right ascension: 282.9681698829580°
Declination: 61.0107716357500°
No. sessions: 9
No. delays: 899
Defining: No
RMS(α cos δ) = 3.3498 mas
RMS(δ) = 0.8079 mas
Variability ellipse semimajor axis = 3.4301 mas
Variability ellipse semiminor axis = 0.3292 mas
Variability ellipse position angle = 77.5 deg
Equivalent α-δ correlation = 0.91

Observed in only 9 session(s)

Quarterly time series for 1851+609 (2026b, 4 global solutions)

Data

Right ascension: 282.9681699788413°
Declination: 61.0107716678827°
No. sessions: 8
No. delays: 896
Defining: No
RMS(α cos δ) = 0.3636 mas
RMS(δ) = 0.2217 mas
Variability ellipse semimajor axis = 0.3637 mas
Variability ellipse semiminor axis = 0.2216 mas
Variability ellipse position angle = 89.0 deg
Equivalent α-δ correlation = 0.02

Observed in only 8 session(s)