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Ψ##### POSEIDON Retrieval Output #####Ψ
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PLANET: HAT-P-18b_TACHELES

Model: T_no_spot

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Model wavelength range:

-> 0.55 - 2.9 um @ R = 20000

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Datasets:

-> JWST_NIRISS_SOSS_Ord1 (TACHELES_lb_O1.dat)
-> JWST_NIRISS_SOSS_Ord2 (TACHELES_lb_O2.dat)

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Algorithm = MultiNest
N_params = 14
N_live = 200
evidence_tol = 0.5

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Model Bayesian evidence:

-> ln Z = 985.05 +/- 0.34

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Best reduced chi-square:

-> chi^2_red = 1.50
-> degrees of freedom = 120
-> chi^2 = 179.48

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******************************************
1 σ constraints
******************************************

R_p_ref     =   1.002 (+0.002) (-0.002) R_J
a1          =   1.19 (+0.51) (-0.55) 
a2          =   1.14 (+0.55) (-0.58) 
log_P1      =   -4.25 (+2.77) (-2.43) 
log_P2      =   -3.63 (+2.52) (-2.66) 
log_P3      =   0.42 (+1.04) (-1.29) 
T_ref       =   471.9 (+96.7) (-78.7) K
log_Na      =   -5.20 (+0.86) (-1.41) 
log_H2O     =   -3.60 (+0.51) (-0.48) 
log_CO2     =   -4.35 (+0.67) (-0.77) 
log_a       =   1.03 (+0.41) (-0.30) 
gamma       =   -2.64 (+0.52) (-0.78) 
log_P_cloud =   -1.19 (+0.33) (-0.26) 
delta_rel   =   -145.20 (+37.83) (-40.84) 

******************************************
2 σ constraints
******************************************

R_p_ref     =   1.002 (+0.003) (-0.003) R_J
a1          =   1.19 (+0.75) (-0.92) 
a2          =   1.14 (+0.80) (-0.89) 
log_P1      =   -4.25 (+4.60) (-3.49) 
log_P2      =   -3.63 (+4.17) (-4.05) 
log_P3      =   0.42 (+1.51) (-2.12) 
T_ref       =   471.9 (+172.5) (-132.0) K
log_Na      =   -5.20 (+1.62) (-5.38) 
log_H2O     =   -3.60 (+1.00) (-0.81) 
log_CO2     =   -4.35 (+1.30) (-4.26) 
log_a       =   1.03 (+0.91) (-0.49) 
gamma       =   -2.64 (+0.89) (-1.70) 
log_P_cloud =   -1.19 (+0.71) (-0.53) 
delta_rel   =   -145.20 (+71.36) (-84.40) 

******************************************
3 σ constraints
******************************************

R_p_ref     =   1.002 (+0.004) (-0.005) R_J
a1          =   1.19 (+0.80) (-1.10) 
a2          =   1.14 (+0.86) (-1.04) 
log_P1      =   -4.25 (+6.09) (-3.74) 
log_P2      =   -3.63 (+5.04) (-4.33) 
log_P3      =   0.42 (+1.58) (-2.38) 
T_ref       =   471.9 (+258.5) (-153.7) K
log_Na      =   -5.20 (+2.45) (-6.62) 
log_H2O     =   -3.60 (+1.52) (-1.11) 
log_CO2     =   -4.35 (+1.94) (-7.50) 
log_a       =   1.03 (+1.56) (-0.68) 
gamma       =   -2.64 (+1.20) (-2.98) 
log_P_cloud =   -1.19 (+1.05) (-0.83) 
delta_rel   =   -145.20 (+108.79) (-133.59) 

******************************************
5 σ constraints
******************************************

R_p_ref     =   1.00 (+0.01) (-0.01) R_J
a1          =   1.19 (+0.81) (-1.14) 
a2          =   1.14 (+0.86) (-1.06) 
log_P1      =   -4.25 (+6.13) (-3.75) 
log_P2      =   -3.63 (+5.45) (-4.36) 
log_P3      =   0.42 (+1.58) (-2.39) 
T_ref       =   471.9 (+267.6) (-169.9) K
log_Na      =   -5.20 (+3.74) (-6.79) 
log_H2O     =   -3.60 (+2.48) (-1.27) 
log_CO2     =   -4.35 (+2.31) (-7.65) 
log_a       =   1.03 (+3.50) (-0.69) 
gamma       =   -2.64 (+1.35) (-7.09) 
log_P_cloud =   -1.19 (+1.11) (-1.68) 
delta_rel   =   -145.20 (+174.11) (-271.55) 

******************************************
Best-fitting parameters
******************************************

R_p_ref     =   1.002 R_J
a1          =   0.24 
a2          =   1.03 
log_P1      =   -6.26 
log_P2      =   -6.36 
log_P3      =   0.44 
T_ref       =   552.0 K
log_Na      =   -5.31 
log_H2O     =   -3.98 
log_CO2     =   -4.75 
log_a       =   0.72 
gamma       =   -2.02 
log_P_cloud =   -0.94 
delta_rel   =   -136.97