<Paris Observatory Geodetic VLBI Center

Radio source coordinate time series for 1221+503 (2026a, independent mode)

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

Right ascension: 186.0413273710658°
Declination: 50.0320784525030°
No. sessions: 7
No. delays: 483
Defining: No
RMS(α cos δ) = 0.8686 mas
RMS(δ) = 0.4380 mas

Observed in only 7 session(s)

Quarterly time series for 1221+503 (2026a, 4 global solutions)

Data

Right ascension: 186.0413274872428°
Declination: 50.0320785224471°
No. sessions: 7
No. delays: 483
Defining: No
RMS(α cos δ) = 0.5204 mas
RMS(δ) = 0.3068 mas

Observed in only 7 session(s)