Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1837+409 (2026b, independent mode)

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

Right ascension: 279.7741817766213°
Declination: 41.0164129515883°
No. sessions: 6
No. delays: 491
Defining: No
RMS(α cos δ) = 5.5258 mas
RMS(δ) = 30.2256 mas
Variability ellipse semimajor axis = 30.5495 mas
Variability ellipse semiminor axis = 3.2934 mas
Variability ellipse position angle = 8.4 deg
Equivalent α-δ correlation = 0.80

Observed in only 6 session(s)

Quarterly time series for 1837+409 (2026b, 4 global solutions)

Data

Right ascension: 279.7741823351491°
Declination: 41.0164146174157°
No. sessions: 6
No. delays: 491
Defining: No
RMS(α cos δ) = 0.1913 mas
RMS(δ) = 0.2001 mas
Variability ellipse semimajor axis = 0.2001 mas
Variability ellipse semiminor axis = 0.1913 mas
Variability ellipse position angle = 1.5 deg
Equivalent α-δ correlation = 0.00

Observed in only 6 session(s)