The median combined (random and
systematic) uncertainties are 2 % (0.01 dex; $ \ log -LCB- g -RCB- $), 3.4 % ($ \ rho $), 2.6 % ($ R$), 5.1 % ($ M$), and 19 % ($ \ tau $) for the
photometric Teff scale and 2 % ($ \ log -LCB- g -RCB- $), 3.5 % ($ \ rho $), 2.7 % ($ R$), 6.3 % ($ M$), and 23 % ($ \ tau $) for the spectroscopic scale.