AAVSO: American Association of Variable Star Observers

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Star Exoplanet Observation Date Primary Observer Measurements reference
Details K2-31 K2-31 b 2021-06-12 SGDA 47 in 2.50 hrs 3240

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

MOBS

Priors

Period=1.25785 +/- 2e-06,Rp/R*=0.0846 +/- 0.0014,a/R*=6.05 +/- 0.5,inc=79.9 +/- 0.8,ecc=0.0,u0=1.571 +/- 0.012,u1=-2.695 +/- 0.047,u2=3.355 +/- 0.062,u3=-1.231 +/- 0.026

Results

Tc=2459377.853 +/- 0.074,Rp/R*=0.102 +/- 0.03,a/R*=3.97 +/- 3.88,Am1=0.928 +/- 0.025,Am2=0.035 +/- 0.013
Details K2-31 K2-31 b 2021-08-04 TKVA 43 in 3.14 hrs 3586

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

MOBS

Priors

Period=1.25785 +/- 2e-06,Rp/R*=0.0846 +/- 0.0014,a/R*=6.05 +/- 0.5,inc=79.9 +/- 0.8,ecc=0.0,u0=1.851 +/- 0.014,u1=-3.238 +/- 0.058,u2=3.72 +/- 0.076,u3=-1.333 +/- 0.032

Results

Tc=2459430.697 +/- 0.076,Rp/R*=0.105 +/- 0.03,a/R*=3.6 +/- 3.93,Am1=1.072 +/- 0.033,Am2=-0.025 +/- 0.011
Details K2-31 K2-31 b 2022-02-26 ITYA 45 in 2.19 hrs 3073

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

MOBS

Priors

Period=1.25785 +/- 2e-06,Rp/R*=0.0846 +/- 0.0014,a/R*=6.05 +/- 0.5,inc=79.9 +/- 0.8,ecc=0.0,u0=1.571 +/- 0.012,u1=-2.695 +/- 0.047,u2=3.354 +/- 0.062,u3=-1.231 +/- 0.026

Results

Tc=2459636.976 +/- 0.083,Rp/R*=0.093 +/- 0.03,a/R*=4.01 +/- 3.9,Am1=1.062 +/- 0.012,Am2=-0.0224 +/- 0.0048
Details K2-31 K2-31 b 2022-04-01 YLUA 60 in 3.12 hrs 2873

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

MOBS

Priors

Period=1.25785 +/- 2e-06,Rp/R*=0.0846 +/- 0.0014,a/R*=6.05 +/- 0.5,inc=79.9 +/- 0.8,ecc=0.0,u0=1.571 +/- 0.012,u1=-2.694 +/- 0.047,u2=3.354 +/- 0.062,u3=-1.23 +/- 0.026

Results

Tc=2459670.996 +/- 0.055,Rp/R*=0.106 +/- 0.025,a/R*=3.34 +/- 2.5,Am1=1.064 +/- 0.02,Am2=-0.026 +/- 0.017
Details K2-31 K2-31 b 2022-04-25 CPHB 46 in 2.42 hrs 3923

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

MOBS

Priors

Period=1.25785 +/- 2e-06,Rp/R*=0.0846 +/- 0.0014,a/R*=6.05 +/- 0.5,inc=79.9 +/- 0.8,ecc=0.0,u0=1.571 +/- 0.012,u1=-2.695 +/- 0.047,u2=3.355 +/- 0.062,u3=-1.231 +/- 0.026

Results

Tc=2459694.779 +/- 0.086,Rp/R*=0.104 +/- 0.031,a/R*=5.05 +/- 4.08,Am1=0.999 +/- 0.013,Am2=0.0015 +/- 0.0052
Details K2-31 K2-31 b 2022-04-25 GSAD 47 in 2.42 hrs 1444

Detrend Parameters

AIRMASS,AIRMASS CORRECTION FUNCTION

Secondary Observers

MOBS

Priors

Period=1.25785 +/- 2e-06,a/R*=6.05 +/- 0.5,inc=79.9 +/- 0.8,ecc=0.0,u0=1.571 +/- 0.012,u1=-2.694 +/- 0.047,u2=3.353 +/- 0.062,u3=-1.23 +/- 0.026

Results

Tc=2459694.82 +/- 0.086,Rp/R*=0.091 +/- 0.031,a/R*=3.54 +/- 3.89,Am1=1.053 +/- 0.064,Am2=-0.023 +/- 0.02