Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1807+279 (2026b, independent mode)

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

Right ascension: 272.2999111731717°
Declination: 27.9699443425385°
No. sessions: 6
No. delays: 489
Defining: No
RMS(α cos δ) = 3.3724 mas
RMS(δ) = 0.9388 mas
Variability ellipse semimajor axis = 3.4784 mas
Variability ellipse semiminor axis = 0.3941 mas
Variability ellipse position angle = -75.7 deg
Equivalent α-δ correlation = -0.90

Observed in only 6 session(s)

Quarterly time series for 1807+279 (2026b, 4 global solutions)

Data

Right ascension: 272.2999108273833°
Declination: 27.9699444201415°
No. sessions: 6
No. delays: 489
Defining: No
RMS(α cos δ) = 0.0278 mas
RMS(δ) = 0.2610 mas
Variability ellipse semimajor axis = 0.2610 mas
Variability ellipse semiminor axis = 0.0276 mas
Variability ellipse position angle = -0.8 deg
Equivalent α-δ correlation = -0.14

Observed in only 6 session(s)