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: 185.9187237375264°
Declination: 80.6678723599145°
No. sessions: 124
No. delays: 8958
Defining: Yes
RMS(α cos δ) = 4.3865 mas
RMS(δ) = 3.5904 mas


Quarterly time series for 1221+809

Data - Demeaned data

Right ascension: 185.9187240104680°
Declination: 80.6678723343198°
No. sessions: 118
No. delays: 8519
Defining: Yes
RMS(α cos δ) = 0.1233 mas
RMS(δ) = 0.1430 mas