  We present an update to the first white-light detections of a dust trail
observed closely following the orbit of asteroid (3200) Phaethon, as seen by
the Wide-field Imager for Parker Solar Probe (WISPR) instrument on the NASA
Parker Solar Probe (PSP) mission. Here we provide a summary and analysis of
observations of the dust trail over nine separate mission encounters between
October 2018 and August 2021 that saw the spacecraft approach to within 0.0277
au of the orbit of Phaethon. We find the photometric and estimated dust mass
properties to be inline with those in the initial publication, with a visual
(V) magnitude of approximately 16.1$\pm$0.3 per pixel, corresponding to a
surface brightness of 26.1 mag arcsec$^{-2}$, and an estimated mass of dust
within the range $10^{10}$ kg - $10^{12}$ kg depending on the assumed dust
properties. However, the key finding of this survey is the discovery that the
dust trail does not perfectly follow the orbit of Phaethon, with a clear
separation noted between them that increases as a function of true anomaly,
though the trail may differ from Phaethon's orbit by as little as 1-degree in
periapsis.
