Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1804-502 (2026b, independent mode)

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

Right ascension: 272.0576478223593°
Declination: -50.1982255813194°
No. sessions: 6
No. delays: 135
Defining: No
RMS(α cos δ) = 1.5139 mas
RMS(δ) = 1.6544 mas
Variability ellipse semimajor axis = 2.0208 mas
Variability ellipse semiminor axis = 0.9723 mas
Variability ellipse position angle = -40.9 deg
Equivalent α-δ correlation = -0.62

Observed in only 6 session(s)

Quarterly time series for 1804-502 (2026b, 4 global solutions)

Data

Right ascension: 272.0576485003695°
Declination: -50.1982257080837°
No. sessions: 6
No. delays: 135
Defining: No
RMS(α cos δ) = 0.3902 mas
RMS(δ) = 0.5729 mas
Variability ellipse semimajor axis = 0.5817 mas
Variability ellipse semiminor axis = 0.3771 mas
Variability ellipse position angle = 13.0 deg
Equivalent α-δ correlation = 0.19

Observed in only 6 session(s)