<Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1639+230 (2026a, independent mode)

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

Right ascension: 250.3551255083130°
Declination: 22.9511285140388°
No. sessions: 752
No. delays: 33324
Defining: No
RMS(α cos δ) = 446.8351 mas
RMS(δ) = 883.2483 mas

Quarterly time series for 1639+230 (2026a, 4 global solutions)

Data

Right ascension: 250.3551148811866°
Declination: 22.9511202146405°
No. sessions: 725
No. delays: 33287
Defining: No
RMS(α cos δ) = 0.1572 mas
RMS(δ) = 0.2543 mas