  The Daytime Sextantids meteor shower, part of the Phaethon-Geminid Stream
Complex (PGC), is closely related to the Geminids, currently the strongest
meteor shower visible at the Earth. The DSX share a similar orbit to asteroid
2005 UD, but the nature of the association remains unclear. From optical data
we find that DSX meteors ablate similarly to Geminids, suggesting that they are
also high density and consistent with a common origin. From radar data we have
isolated 19,007 DSX orbits through application of a novel convex hull approach
to determine stream membership. We find at the peak the mean semi-major axis is
near 1 AU, eccentricity is 0.86 and that both decrease as a function of solar
longitude. The inclination averages 25 degrees at the peak but increases over
time. Noticeable DSX activity extends from solar longitude 173-196$^{\circ}$
with a flux plateau between 186 - 189$^{\circ}$. The peak flux is $2 \pm 0.05
\times 10^{-3}$ km$^{-2}$ hr$^{-1}$, equivalent to a ZHR of 20. We estimate a
true differential mass index for the shower of $s = 1.64 \pm 0.06$ at the time
of peak and an average of $1.70 \pm 0.07$ for days surrounding the peak. The
mass of the DSX stream is estimated to be $10^{16}$ g, the same order as 2005
UD, suggesting the stream is too massive to have been created by recent
meteoroid production from 2005 UD. We propose that the DSX and 2005 UD were
created in the same break-up event that created 3200 Phaethon.
