Table B.1
Model parameters, priors, and posteriors for the Combined model.
| Parameter | Prior | Posterior |
|---|---|---|
| Stellar temperature, Teff [K] | Nu(a = 4000, b = 6000, µ = 5200, σ = 68) | 5200.0 ± 66.0 |
| Stellar radius, Rs [R⊕] | Nu(a = 0, µ = 0.77, σ = 0.006) | 0.7699 ± 0.0059 |
| log stellar surface gravity, log g [cgs] | N(µ = 4.45, σ = 0.12) |  |
| Transit time, tb,0 [BJD-2457000] | N(µ = 1743.73, σ = 0.025) | 1743.7193 ± 0.0022 |
| Transit time, tb,1 [BJD-2457000] | N(µ = 1754.08, σ = 0.025) | 1754.0776 ± 0.0012 |
| Transit time, tb,2 [BJD-2457000] | N(µ = 1930.12, σ = 0.025) | 1930.1221 ± 0.002 |
| Transit time, tb,3 [BJD-2457000] | N(µ = 1940.47, σ = 0.025) | 1940.4798 ± 0.0011 |
| Transit time, tb,4 [BJD-2457000] | N(µ = 1950.83, σ = 0.025) | 1950.8343 ± 0.0013 |
| Transit time, tb,5 [BJD-2457000] | N(µ = 2333.96, σ = 0.025) | 2333.9547 ± 0.0024 |
| Transit time, tc,0 [BJD-2457000] | N(µ = 1748.69, σ = 0.025) | 1748.69408 ± 0.00079 |
| Transit time, tc,1 [BJD-2457000] | N(µ = 1937.83, σ = 0.025) | 1937.82201 ± 0.0008 |
| Transit time, tc,2 [BJD-2457000] | N(µ = 2274.08, σ = 0.025) | 2274.08398 ± 0.00079 |
| Transit time, td,0 [BJD-2457000] | N(µ = 1762.67, σ = 0.025) | 1762.6679 ± 0.0016 |
| Transit time, td,1 [BJD-2457000] | N(µ = 1938.29, σ = 0.025) | 1938.2915 ± 0.0014 |
| Transit time, td,2 [BJD-2457000] | N(µ = 2359.79, σ = 0.025) | 2359.789 ± 0.022 |
| Transit time, td,3 [BJD-2457000] | N(µ = 2394.91, σ = 0.025) | 2394.9236 ± 0.0015 |
| Log radius ratio, log Rp,b/Rs | N(µ = −3.48794, σ = 1) | −3.507 ± 0.012 |
| Log radius ratio, log Rp,c/Rs | N(µ = −3.18726, σ = 1) |  |
| Log radius ratio, log Rp,d/Rs | N(µ = −3.14438, σ = 1) | −3.258 ± 0.018 |
| Impact parameter, b0 | U(a = 0.0, b = 1 + Rp,b/Rs)‡ | 0.149 ± 0.089 |
| Impact parameter, b1 | U(a = 0.0, b = 1 + Rp,c/Rs)‡ |  |
| Impact parameter, b2 | U(a = 0.0, b = 1 + Rp,d/Rs)‡ | 0.8225 ± 0.0087 |
| Quadratic LD, ucheops,0 | Nu(a = 0.5015, b = 0.5707,µ = 0.5367, σ = 0.0500) | 0.567 ± 0.038 |
| Quadratic LD, ucheops,1 | Nu(a = 0.1457, b = 0.1949,µ = 0.1705, σ = 0.0500) | 0.187 ± 0.047 |
| Quadratic LD, ug,0 | Nu(a = 0.6800, b = 0.7732,µ = 0.7257, σ = 0.0500) | 0.701 ± 0.048 |
| Quadratic LD, ug,1 | Nu(a = 0.0513, b = 0.1269,µ = 0.0911, σ = 0.0500) |  |
| Quadratic LD, ui,0 | Nu(a = 0.3776, b = 0.4283,µ = 0.4043, σ = 0.0500) | 0.389 ± 0.049 |
| Quadratic LD,ui,0 | Nu(a = 0.2043, b = 0.2355,µ = 0.2186, σ = 0.0500) | 0.206±0.05 |
| Quadratic LD, ur,0 | Nu(a = 0.4771, b = 0.5458,µ = 0.5114, σ = 0.0500) | 0.477 ± 0.046 |
| Quadratic LD, ur,1 | Nu(a = 0.1800, b = 0.2255,µ = 0.2025, σ = 0.0500) | 0.182± 0.048 |
| Quadratic LD, utess,0 | Nu(a = 0.3703, b = 0.4255,µ = 0.3981, σ = 0.0500) | 0.375 ± 0.04 |
| Quadratic LD, utess,1 | Nu(a = 0.2046, b = 0.2383,µ = 0.2219, σ = 0.0500) | 0.208 ± 0.046 |
| Quadratic LD,uz,0 | Nu(a = 0.2028, b = 0.3076,µ = 0.2333, σ = 0.0500) | 0.212± 0.048 |
| Quadratic LD, uz,1 | Nu(a = 0.2428, b = 0.3645,µ = 0.3251, σ = 0.0500) | 0.31 ± 0.05 |
Log photometric scatter, log  /(ppt) |
N(µ = 3.535, σ = 3) | −3.3 ± 1.0 |
Log photometric scatter, log  /(ppt) |
N(µ = 2.947, σ = 3) | −3.6 ± 1.1 |
Log photometric scatter, log  /(ppt) |
N(µ = 2.557, σ = 3) | −3.6 ± 1.1 |
Log photometric scatter, log  /(ppt) |
N(µ = 2, σ = 3) | −3.6 ± 1.2 |
Log photometric scatter, log  /(ppt) |
N(µ = 2.101, σ = 3) |  |
Log photometric scatter, log  /(ppt) |
N(µ = 0.9765, σ = 3) |  |
Log photometric scatter, log  /(ppt) |
N(µ = −0.7551, σ = 3) | −1.816 ± 0.09 |
Log photometric scatter, log  /(ppt) |
N(µ = −0.5174, σ = 3) | −1.85 ± 0.1 |
Log photometric scatter, log  /(ppt) |
N(µ = −0.3489, σ = 3) | −1.221 ± 0.049 |
Log photometric scatter, log  /(ppt) |
N(µ = 0.5838, σ = 3) | −0.991 ± 0.048 |
| Log photometric scatter, log σtess,s/(ppt) | N(µ = −0.314, σ = 3) | −1.338 ± 0.037 |
| g-lco airmass trend, df /d(airmass)N | U(a = −35, b = 10) | −22.87 ± 0.91 |
| g-lco aperture entropy trend, df /d(entropy)N | Nu(a = −20, b = 20,µ = 0,σ = 1) | 0.11 ± 0.24 |
| g-lco time trend, df /d(time)N | Nu(a = −20, b = 20,µ = 0,σ = 1) | −0.9 ± 0.26 |
| g-lco aperture width trend, df /d(width)N | Nu(a = −20, b = 20,µ = 0,σ = 1) | −0.65 ± 0.18 |
| g-lco g/r colour trend, df /d(g/r)N | Nu(a = −20, b = 20,µ = 0,σ = 1) | 7.55 ± 0.67 |
| g-lco r/i colour trend, df /d(r/i)N | Nu(a = −20, b = 20,µ = 0,σ = 1) | 3.41 ± 0.19 |
g-lco airmass quadratic,  |
U(a = −35, b = 10) | 0.68 ± 0.11 |
| r-lco airmass trend, df /d(airmass)N | U(a = −35, b = 10) | −15.94 ± 0.73 |
| r-lco time trend, df /d(time)N | Nu(a = −20, b = 20,µ = 0,σ = 1) | −1.31 ± 0.18 |
| r-lco aperture width trend, df /d(width)N | Nu(a = −20, b = 20,µ = 0,σ = 1) | −0.438 ± 0.059 |
| r-lco g/r colour trend, df /d(g/r)N | Nu(a = −20, b = 20,µ = 0,σ = 1) | −1.35 ± 0.59 |
| r-lco r/i colour trend, df /d(r/i)N | Nu(a = −20, b = 20,µ = 0,σ = 1) | 2.76 ± 0.16 |
r-lco airmass quadratic,  |
U(a = −35, b = 10) | 0.163 ± 0.082 |
N details a normally distributed prior with mean, µ and standard deviation, σ values. U details a uniform distribution with lower, a, and upper, b, limits. Nu details a truncated normal distribution with µ,σ, a & b values.‡ represents the uniform prior as presented by Espinoza (2018) and implemented by exoplanet. CHEOPS suffixes refer chronologically to the four unique CHEOPS visits, SaEx refers to detrending parameters for the photometry from SAINT-EX, McD refers to those for photometry from the 1m LCO telescope at McDonald, and lco refers to data from the 2m LCO telescope with the MuSCAT-3 instrument in each of the four bands (g-, r-, i-, & z-).
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