argon_gas_w2_1.pkl: N = 4197, L = 3000.0 sigma, 1.30 periods; speed 324.0 +- 5.2 m/s (thermal-noise estimate; fit alone 0.1) (first half only: 306.4); damping 4.38e-05/tau; T drift -0.02%, energy drift +6.1e-05 per atom
argon_gas_w2_2.pkl: N = 4197, L = 3000.0 sigma, 1.29 periods; speed 322.7 +- 4.2 m/s (thermal-noise estimate; fit alone 0.1) (first half only: 311.7); damping 1.18e-04/tau; T drift -0.15%, energy drift +3.6e-05 per atom
argon_gas_w_1.pkl: N = 5830, L = 1500.0 sigma, 1.53 periods; speed 328.4 +- 2.9 m/s (thermal-noise estimate; fit alone 0.2) (first half only: 338.7); damping 6.75e-04/tau; T drift +0.01%, energy drift +1.9e-05 per atom
helium_gas_w2_1.pkl: N = 4046, L = 5000.0 sigma, 1.32 periods; speed 1049.4 +- 19.8 m/s (thermal-noise estimate; fit alone 0.3) (first half only: 1008.8); damping 3.82e-04/tau; T drift +0.06%, energy drift -6.2e-05 per atom
helium_gas_w_1.pkl: N = 4552, L = 2500.0 sigma, 1.39 periods; speed 1014.7 +- 14.2 m/s (thermal-noise estimate; fit alone 0.3) (first half only: 1054.3); damping 1.33e-03/tau; T drift +0.01%, energy drift +2.4e-04 per atom
helium_gas_w_2.pkl: N = 4552, L = 2500.0 sigma, 1.42 periods; speed 1034.5 +- 15.4 m/s (thermal-noise estimate; fit alone 0.6) (first half only: 1173.0); damping 1.40e-03/tau; T drift -0.03%, energy drift -4.6e-05 per atom
liquid_argon_w_1.pkl: N = 7552, L = 199.2 sigma, 2.18 periods; speed 855.6 +- 9.1 m/s (thermal-noise estimate; fit alone 0.4) (first half only: 865.1); damping 2.87e-03/tau; T drift +0.67%, energy drift -1.2e-05 per atom
liquid_argon_w_2.pkl: N = 7552, L = 199.2 sigma, 2.19 periods; speed 859.8 +- 8.9 m/s (thermal-noise estimate; fit alone 0.3) (first half only: 860.9); damping 5.64e-03/tau; T drift -1.35%, energy drift +2.5e-05 per atom

argon_gas_w2     seeds 2: 323.2 +- 3.3 m/s; reference 323.45 m/s (300 K, 10 atm); ratio 0.9993 +- 0.0102
argon_gas_w      seeds 1: 328.4 +- 2.9 m/s; reference 323.45 m/s (300 K, 10 atm); ratio 1.0154 +- 0.0091
helium_gas_w2    seeds 1: 1049.4 +- 19.8 m/s; reference 1028.16 m/s (300 K, 20 atm); ratio 1.0206 +- 0.0193
helium_gas_w     seeds 2: 1023.8 +- 10.4 m/s; reference 1028.16 m/s (300 K, 20 atm); ratio 0.9958 +- 0.0101
liquid_argon_w   seeds 2: 857.7 +- 6.4 m/s; reference 840.4 m/s (87 K, 1 atm); ratio 1.0206 +- 0.0076
