Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1638+398 (2025c, independent mode)

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

Right ascension: 250.1233878318259°
Declination: 39.7794432963340°
No. sessions: 2222
No. delays: 188940
Defining: No
RMS(α cos δ) = 18064.3968 mas
RMS(δ) = 3760.8447 mas

Quarterly time series for 1638+398 (2025c, 4 global solutions)

Data

Right ascension: 250.1234699008946°
Declination: 39.7794523414805°
No. sessions: 2006
No. delays: 163701
Defining: No
RMS(α cos δ) = 0.1707 mas
RMS(δ) = 0.1762 mas