Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1856+737 (2026b, independent mode)

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

Right ascension: 283.7387495569495°
Declination: 73.8555296971973°
No. sessions: 30
No. delays: 1074
Defining: No
RMS(α cos δ) = 1.2836 mas
RMS(δ) = 0.5035 mas
Variability ellipse semimajor axis = 1.3307 mas
Variability ellipse semiminor axis = 0.3609 mas
Variability ellipse position angle = 74.0 deg
Equivalent α-δ correlation = 0.67

Observed in only 30 session(s)

Quarterly time series for 1856+737 (2026b, 4 global solutions)

Data

Right ascension: 283.7387497281526°
Declination: 73.8555297024422°
No. sessions: 30
No. delays: 1074
Defining: No
RMS(α cos δ) = 0.1986 mas
RMS(δ) = 0.2318 mas
Variability ellipse semimajor axis = 0.2602 mas
Variability ellipse semiminor axis = 0.1596 mas
Variability ellipse position angle = 35.1 deg
Equivalent α-δ correlation = 0.43

Observed in only 30 session(s)