                 with errors without errors
mean pull gamma0       +0.02          +0.06
mean pull gamma1       +0.01          -0.07
std pull gamma0         0.98           1.02
std pull gamma1         0.98           1.06
1σ coverage              68%            68%

mean χ² = 60.5 for ν = 60 (expected 60 ± 0.8)
