Paris Observatory Geodetic VLBI Center

 

Radio source coordinate time series for 1221+809 (independent mode)

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

Right ascension: 185.9187236538639°
Declination: 80.6678723872229°
No. sessions: 132
No. delays: 9432
Defining: Yes
RMS(α cos δ) = 4.4410 mas
RMS(δ) = 3.6264 mas


Quarterly time series for 1221+809

Data - Demeaned data

Right ascension: 185.9187240473231°
Declination: 80.6678723283727°
No. sessions: 115
No. delays: 7470
Defining: Yes
RMS(α cos δ) = 0.1275 mas
RMS(δ) = 0.1306 mas