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Ψ##### POSEIDON Retrieval Output #####Ψ
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Ψ#####################################Ψ
Ψ*************************************Ψ

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PLANET: HAT-P-18b_phot

Model: p_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 (phot_lb_O1.dat)
-> JWST_NIRISS_SOSS_Ord2 (phot_lb_O2.dat)

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Algorithm = MultiNest
N_params = 15
N_live = 500
evidence_tol = 0.5

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Model Bayesian evidence:

-> ln Z = 984.01 +/- 0.20

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Best reduced chi-square:

-> chi^2_red = 1.92
-> degrees of freedom = 119
-> chi^2 = 227.93

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

R_p_ref     =   0.998 (+0.001) (-0.001) R_J
log_g       =   2.73 (+0.04) (-0.03) 
a1          =   1.21 (+0.50) (-0.53) 
a2          =   1.10 (+0.58) (-0.56) 
log_P1      =   -4.34 (+2.88) (-2.46) 
log_P2      =   -3.64 (+2.43) (-2.74) 
log_P3      =   0.40 (+1.05) (-1.34) 
T_ref       =   433.3 (+71.1) (-61.7) K
log_Na      =   -6.82 (+2.12) (-3.22) 
log_H2O     =   -3.11 (+0.53) (-0.46) 
log_CO2     =   -4.49 (+0.77) (-1.47) 
log_a       =   1.63 (+0.44) (-0.34) 
gamma       =   -3.22 (+0.59) (-0.69) 
log_P_cloud =   0.14 (+1.19) (-1.10) 
delta_rel   =   -183.00 (+30.86) (-30.64) 

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

R_p_ref     =   0.998 (+0.002) (-0.003) R_J
log_g       =   2.73 (+0.07) (-0.07) 
a1          =   1.21 (+0.74) (-0.93) 
a2          =   1.10 (+0.85) (-0.87) 
log_P1      =   -4.34 (+4.97) (-3.46) 
log_P2      =   -3.64 (+4.11) (-4.06) 
log_P3      =   0.40 (+1.50) (-2.18) 
T_ref       =   433.3 (+146.4) (-101.3) K
log_Na      =   -6.82 (+3.28) (-4.76) 
log_H2O     =   -3.11 (+1.09) (-0.81) 
log_CO2     =   -4.49 (+1.45) (-6.19) 
log_a       =   1.63 (+1.05) (-0.59) 
gamma       =   -3.22 (+1.00) (-1.56) 
log_P_cloud =   0.14 (+1.74) (-1.62) 
delta_rel   =   -183.00 (+62.59) (-61.80) 

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

R_p_ref     =   0.998 (+0.004) (-0.005) R_J
log_g       =   2.73 (+0.10) (-0.11) 
a1          =   1.21 (+0.79) (-1.13) 
a2          =   1.10 (+0.89) (-1.00) 
log_P1      =   -4.34 (+5.82) (-3.64) 
log_P2      =   -3.64 (+5.25) (-4.36) 
log_P3      =   0.40 (+1.60) (-2.38) 
T_ref       =   433.3 (+213.6) (-127.7) K
log_Na      =   -6.82 (+4.60) (-5.17) 
log_H2O     =   -3.11 (+1.73) (-1.08) 
log_CO2     =   -4.49 (+2.01) (-7.35) 
log_a       =   1.63 (+1.79) (-0.81) 
gamma       =   -3.22 (+1.37) (-2.61) 
log_P_cloud =   0.14 (+1.86) (-2.07) 
delta_rel   =   -183.00 (+99.56) (-95.35) 

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

R_p_ref     =   1.00 (+0.01) (-0.02) R_J
log_g       =   2.73 (+0.13) (-0.13) 
a1          =   1.21 (+0.79) (-1.18) 
a2          =   1.10 (+0.90) (-1.05) 
log_P1      =   -4.34 (+6.07) (-3.66) 
log_P2      =   -3.64 (+5.58) (-4.36) 
log_P3      =   0.40 (+1.60) (-2.40) 
T_ref       =   433.3 (+292.5) (-132.4) K
log_Na      =   -6.82 (+5.44) (-5.18) 
log_H2O     =   -3.11 (+2.07) (-1.80) 
log_CO2     =   -4.49 (+2.77) (-7.51) 
log_a       =   1.63 (+3.47) (-0.99) 
gamma       =   -3.22 (+1.79) (-4.75) 
log_P_cloud =   0.14 (+1.86) (-3.36) 
delta_rel   =   -183.00 (+160.32) (-167.32) 

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

R_p_ref     =   0.998 R_J
log_g       =   2.75 
a1          =   0.66 
a2          =   1.88 
log_P1      =   -5.53 
log_P2      =   -3.28 
log_P3      =   -0.32 
T_ref       =   475.9 K
log_Na      =   -4.44 
log_H2O     =   -3.33 
log_CO2     =   -4.00 
log_a       =   1.48 
gamma       =   -2.86 
log_P_cloud =   1.44 
delta_rel   =   -184.37