LO Doppler Tracking Issue March 13 - May 25, 2023
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LO Doppler Tracking Issue March 13 - May 25, 2023 It was noticed recently that data taken with the GBT during the period 13th of March - 6 pm (ET) 25th of May 2023 were being incorrectly corrected for Doppler tracking in barycentric/LSR frames. The main issue has now been fixed, although data taken during that period have almost certainly been incorrectly adjusted for the motion of the Earth/Solar system. We are working on a fix to retroactively repair these data. If you observed using the topocentric frame for your data (i.e. vframe='topo' in your configuration), then you do not need to be concerned about this issue. However, for any other frame, please wait for us to contact you again before using your data for any publications or general analysis.