FROM TH2F
constant
26.828813995822333+-1.495237272773602
chi2/ndof = 40.76492902998154
plane
49.176532963246345+-39.026185301248624
invpt slope = -14.951786830253273+-2.056369650110713
theta slope = -1.71777347901525e-09+-31.898438634997746
chi2/ndof = 43.94970245341738
from tgraph2D
constant
64.19666709080246+-18.607256939234038
chi2/ndof = 4154.760127989492
plane
113.30323907231329+-478.2661980623421
invpt slope = -40.922143329871155+-26.846299532794127
theta slope = 5.43786349282982e-09+-391.2430002227921
chi2/ndof = 4036.053249499508