Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1128+385 (2026b, independent mode)

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

Right ascension: 172.7220092432599°
Declination: 38.2551546758951°
No. sessions: 1938
No. delays: 117888
Defining: No
RMS(α cos δ) = 172.0690 mas
RMS(δ) = 337.7946 mas
Variability ellipse semimajor axis = 365.2710 mas
Variability ellipse semiminor axis = 101.4400 mas
Variability ellipse position angle = -23.3 deg
Equivalent α-δ correlation = -0.77

Quarterly time series for 1128+385 (2026b, 4 global solutions)

Data

Right ascension: 172.7220108965014°
Declination: 38.2551519279837°
No. sessions: 1883
No. delays: 117676
Defining: No
RMS(α cos δ) = 0.1564 mas
RMS(δ) = 0.1780 mas
Variability ellipse semimajor axis = 0.1847 mas
Variability ellipse semiminor axis = 0.1484 mas
Variability ellipse position angle = -26.6 deg
Equivalent α-δ correlation = -0.17