Magnitude Offsets - VST stars only. r_psf<20.5; i_psf<20; z_psf<19.5 (scale: +/-0.05mag - expect u which is +/-0.075)
u-band - PS1 colour conversion from g: 2.6*(g-r)-0.2(g-r)**4 for (g-r)>0.2
PS1-NIGHTLY
PS1-59pcMX
PS1-INDIVIDUAL
PS1-MURPHY

g-band
PS1-NIGHTLY
PS1-59pcMX
PS1-INDIVIDUAL
PS1-MURPHY
PS1-APASS DR9

r-band
PS1-NIGHTLY
PS1-59pcMX
PS1-INDIVIDUAL
PS1-MURPHY
PS1-APASS DR9

i-band
PS1-NIGHTLY
PS1-59pcMX
PS1-INDIVIDUAL
PS1-MURPHY
PS1-APASS DR9

z-band
PS1-NIGHTLY
PS1-59pcMX
PS1-INDIVIDUAL
PS1-MURPHY

Colours (scale: +/-0.1mag):

(g-r) - blue sequence stars only
PS1
NIGHTLY
INDIVIDUAL
MURPHY

(r-i)
PS1
NIGHTLY
INDIVIDUAL
MURPHY

(i-z)
PS1
NIGHTLY
INDIVIDUAL
MURPHY