Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1639+230 (2025b, independent mode)

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

Right ascension: 250.3549031006940°
Declination: 22.9512972051942°
No. sessions: 854
No. delays: 39990
Defining: No
RMS(α cos δ) = 1673.6110 mas
RMS(δ) = 2069.0657 mas

Quarterly time series for 1639+230 (2025b, 4 global solutions)

Data

Right ascension: 250.3551148785641°
Declination: 22.9511202104237°
No. sessions: 719
No. delays: 31528
Defining: No
RMS(α cos δ) = 0.1583 mas
RMS(δ) = 0.2571 mas