Temperature statistics for the simulations by RE11 and TR18 (Truong NR, Truong CSF and Truong AGN) in 80 ks exposure time, with masses of M₅₀₀ = 1 × 10¹³ M_⊙, 5 × 10¹³ M_⊙ and 10¹⁴ M_⊙. Top: median precision of the temperature fit. The green dashed line indicates 25% precision. Middle: accuracy of the temperature measurements. Bottom: bias in uncertainty. The precision, accuracy, and bias in uncertainty are defined in Sect. 3.2.5.