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KELT-17 b

View target in exoplanet catalog
chart

Total Reductions to Date: 24

Date Processed: 09/18/2023 at 00:07:19 (PDT)

Exoplanet Watch Ephemeris

Parameter Value Uncertainty
Orbital Period (Days) 3.0801796219946063 3.999740910972865e-07
Ephemeris (BJD_TDB) 2459668.7245851653 0.00011141531592318546
Time saved (hours) 0.0059  

Assumed Priors

Parameter Value Uncertainty Units Reference
RA 125.617407 decimal
DEC 13.7353093 decimal
Host Star Metallicity -0.018 0.074 Zhou et al. 2016
Host Star log(g) 4.21 0.08 Log10(cgs) ExoFOP-TESS TOI
Host Star Radius [R_Sun] 1.7 0.06 Sol ExoFOP-TESS TOI
Host Star Effective Temperature [K] 7511.0 130.4 K ExoFOP-TESS TOI
a/Rs 6.38 0.18 Zhou et al. 2016
eccentricity 0.0 Ivshina & Winn 2022
inclination [degrees] 84.87 0.45 deg Zhou et al. 2016
omega [degrees] 0.0 deg Ivshina & Winn 2022
orbital period [days] 3.0801735 8.6e-06 day Ivshina & Winn 2022
Rp 17.53 0.59 R_Earth ExoFOP-TESS TOI
Rp/Rs 0.0982 0 ExoFOP-TESS TOI
ephemeris [JD] 2457330.86812 0.00051 BJD-TDB Ivshina & Winn 2022

Previously Published Mid-Transit Times

Value Uncertainty Units Reference
2457330.86812 0.00051 BJD-TDB Ivshina & Winn 2022
2459576.31922 0.000134 BJD ExoFOP-TESS TOI
2457226.142194 0.00033 BJD-TDB Zhou et al. 2016

Observations

Light curve chart for 0001324
Parameter Value Uncertainty
Am1 1.0073 0.0048
Am2 -0.0048 0.002
a/Rs 6.16 0.19
Rp/Rs 0.1176 0.0052
ephemeris [JD] 2459668.7217 0.0026
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.3141581211084152
u1 -5.973984995893722
u2 5.5084134811485495
u3 -1.8485865242814854
duration 0.1565 0.0067
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
IJ Johnson I 780.0 nm 1020.0 nm
Organization Observer Code Secondary Observers
AAVSO MBEB (collaborate/publish)
Light curve chart for 0002668
Parameter Value Uncertainty
Am1 0.9949 0.0099
Am2 0.0052 0.0017
a/Rs 7.28 0.42
Rp/Rs 0.061 0.016
ephemeris [JD] 2459982.8974 0.0084
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.139114981670748
u1 -5.609635389486188
u2 5.235616539765339
u3 -1.7650960539331337
duration 0.113 0.011
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
AAVSO LPAC (collaborate/publish)
Light curve chart for 0002951
Parameter Value Uncertainty
Am1 0.9872 0.0036
Am2 0.0102 0.0013
a/Rs 5.54 0.24
Rp/Rs 0.0599 0.0045
ephemeris [JD] 2460004.4418 0.0031
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 2.501544540107419
u1 -4.401048840000953
u2 4.529846939223647
u3 -1.6303425718301345
duration 0.1675 0.0097
Not included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
SR Sloan r 553.1 nm 693.1 nm
Organization Observer Code Secondary Observers
AAVSO SAJB (collaborate/publish)
Light curve chart for e9a235b98601cde4b932c11524b9ff39
Parameter Value Uncertainty
Am1 1.00012 0.00059
Am2 0
a/Rs 6.388 0.055
Rp/Rs 0.092 0.0011
ephemeris [JD] 2459545.51778 0.00075
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1386315781215197
u1 -5.6066398230669545
u2 5.231091845987765
u3 -1.7630835230929875
duration 0.1437 0.0018
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for dae4d4149c179ea72b1f0a3faee7717d
Parameter Value Uncertainty
Am1 0.99992 0.00068
Am2 0
a/Rs 6.362 0.058
Rp/Rs 0.0912 0.0011
ephemeris [JD] 2459523.95604 0.00076
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1395388193799003
u1 -5.6090697163270535
u2 5.233452263891416
u3 -1.763921288959747
duration 0.1443 0.0018
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for cbdcfe5afc6274c392fcb367a0212a8d
Parameter Value Uncertainty
Am1 0.99994 0.00067
Am2 0
a/Rs 6.404 0.064
Rp/Rs 0.0923 0.0014
ephemeris [JD] 2459514.7159 0.00085
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1390532143247976
u1 -5.608378084875976
u2 5.233454232614491
u3 -1.7641292840787681
duration 0.1433 0.0021
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for ac311efb27a6e0bb989a4232b7f644e0
Parameter Value Uncertainty
Am1 0.99991 0.00075
Am2 0
a/Rs 6.363 0.054
Rp/Rs 0.0913 0.0011
ephemeris [JD] 2459502.39445 0.00076
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.13839120043701
u1 -5.606731836569841
u2 5.23190989110175
u3 -1.7635691770073856
duration 0.1449 0.0017
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 9da51edd3dca2691134b4b60accd763b
Parameter Value Uncertainty
Am1 0.99995 0.00059
Am2 0
a/Rs 6.359 0.053
Rp/Rs 0.092 0.0011
ephemeris [JD] 2459530.11646 0.00075
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1389763758068607
u1 -5.607023365827635
u2 5.231026067431767
u3 -1.7629789994626304
duration 0.1449 0.0017
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 453e9ca37a829a30c9f1806569208d46
Parameter Value Uncertainty
Am1 0.99992 0.00061
Am2 0
a/Rs 6.361 0.055
Rp/Rs 0.091 0.0012
ephemeris [JD] 2459527.03607 0.00077
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.138961389340609
u1 -5.608768817741827
u2 5.234373032493472
u3 -1.7645655260940178
duration 0.1443 0.0018
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for d76222c53d8d8f6873e362621be7286c
Parameter Value Uncertainty
Am1 1.0 0.00062
Am2 0
a/Rs 6.363 0.053
Rp/Rs 0.0908 0.0011
ephemeris [JD] 2459548.59777 0.00073
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.138543474242857
u1 -5.607795448919272
u2 5.233519862122453
u3 -1.7642678094605149
duration 0.1443 0.0017
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 34e732de11543be3ad4c78b3892f833f
Parameter Value Uncertainty
Am1 0.99997 0.0007
Am2 0
a/Rs 6.403 0.055
Rp/Rs 0.0925 0.0012
ephemeris [JD] 2459536.27678 0.00077
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1396088144554866
u1 -5.610680441864371
u2 5.2363595983936815
u3 -1.7652878929569584
duration 0.1437 0.0017
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for a673abd9d4babf61eb663b0feb60ee0c
Parameter Value Uncertainty
Am1 1.00001 0.00065
Am2 0
a/Rs 6.36 0.052
Rp/Rs 0.0924 0.0011
ephemeris [JD] 2459560.91812 0.00075
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.139162818694192
u1 -5.608286648150978
u2 5.232926152316594
u3 -1.7638022448831312
duration 0.1449 0.0016
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 74787a53e2802bc73d96eb0d0c0c6654
Parameter Value Uncertainty
Am1 0.99999 0.00063
Am2 0
a/Rs 6.367 0.056
Rp/Rs 0.091 0.0011
ephemeris [JD] 2459508.55524 0.00075
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1391298778014556
u1 -5.608673854916338
u2 5.233710377305566
u3 -1.7641663222023207
duration 0.1443 0.0019
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for d85d17f9a7cfbea80cf5b744a92a8cb3
Parameter Value Uncertainty
Am1 1.0 0.00063
Am2 0
a/Rs 6.379 0.055
Rp/Rs 0.0913 0.0011
ephemeris [JD] 2459554.7582 0.00078
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1396306859273295
u1 -5.6099235226201625
u2 5.234751989627073
u3 -1.7644590749303566
duration 0.1437 0.0018
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 794eaacde29bfe7b26f26fdd33580048
Parameter Value Uncertainty
Am1 1.0 0.00061
Am2 0
a/Rs 6.333 0.059
Rp/Rs 0.0912 0.0011
ephemeris [JD] 2459542.43713 0.0008
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1402058618207342
u1 -5.611998230356802
u2 5.237415507314068
u3 -1.7656230607344274
duration 0.1456 0.0019
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 622986b08d8330bcf8f7422cc1afd240
Parameter Value Uncertainty
Am1 0.99996 0.00069
Am2 0
a/Rs 6.378 0.057
Rp/Rs 0.092 0.0012
ephemeris [JD] 2459517.79643 0.00078
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.139481622177897
u1 -5.609483311505553
u2 5.234485888060382
u3 -1.7644841207328077
duration 0.1443 0.0018
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for b0a184b0af7ff53c2c1c691b57f71034
Parameter Value Uncertainty
Am1 1.00004 0.00065
Am2 0
a/Rs 6.366 0.055
Rp/Rs 0.0911 0.0011
ephemeris [JD] 2459505.47547 0.00076
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1386832314451847
u1 -5.6064313917517214
u2 5.230690210474799
u3 -1.7629419722249042
duration 0.1443 0.0017
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 69f50948abed6a48df4cf8c4a0f7bbf1
Parameter Value Uncertainty
Am1 0.99998 0.00062
Am2 0
a/Rs 6.387 0.055
Rp/Rs 0.0917 0.0011
ephemeris [JD] 2459533.19633 0.00074
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.139670169995072
u1 -5.610312298620935
u2 5.235539007067647
u3 -1.7648968004261736
duration 0.1437 0.0017
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 3b5386238f3fce8dede9a6a3ad0ee4b3
Parameter Value Uncertainty
Am1 1.00004 0.0006
Am2 0
a/Rs 6.358 0.056
Rp/Rs 0.092 0.0012
ephemeris [JD] 2459570.15902 0.00077
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1377369849261214
u1 -5.605427163295897
u2 5.231025252678526
u3 -1.7633349963604
duration 0.1449 0.0018
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for a5fb8e2ba04c2cce8cb9904d300c41f3
Parameter Value Uncertainty
Am1 0.99966 0.00066
Am2 0
a/Rs 6.36 0.058
Rp/Rs 0.0924 0.0012
ephemeris [JD] 2459557.83757 0.00081
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1379932527405683
u1 -5.605157055569839
u2 5.229935910118552
u3 -1.7627720293571634
duration 0.1449 0.0019
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 009ffa39247b204ac36aacea0726e5fa
Parameter Value Uncertainty
Am1 0.99987 0.00069
Am2 0
a/Rs 6.405 0.057
Rp/Rs 0.0918 0.0012
ephemeris [JD] 2459563.9982 0.00075
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1392054890387358
u1 -5.609688280320052
u2 5.235425033728035
u3 -1.764942164432807
duration 0.1437 0.0018
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for 3ad04de99c06589757791d2fb6d30e3f
Parameter Value Uncertainty
Am1 0.99997 0.00063
Am2 0
a/Rs 6.36 0.053
Rp/Rs 0.0911 0.0011
ephemeris [JD] 2459576.31919 0.00072
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1392932698463114
u1 -5.61006617562485
u2 5.235962436343132
u3 -1.7651894525426726
duration 0.1443 0.0017
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for c4edca286c601378f47e0cbc73a32089
Parameter Value Uncertainty
Am1 0.99996 0.00063
Am2 0
a/Rs 6.339 0.054
Rp/Rs 0.0912 0.0011
ephemeris [JD] 2459520.87549 0.00078
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.139794936424895
u1 -5.61088468344383
u2 5.236283407570576
u3 -1.7651935825249376
duration 0.1456 0.0017
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)
Light curve chart for bc4355418e3570789737b35632174808
Parameter Value Uncertainty
Am1 1.00007 0.00059
Am2 0
a/Rs 6.377 0.052
Rp/Rs 0.0914 0.0011
ephemeris [JD] 2459573.239 0.00075
eccentricity 0.0
inclination [degrees] 84.87
omega [degrees] 0.0
orbital period [days] 3.0801735
u0 3.1391752920686966
u1 -5.609391101848803
u2 5.234844796959062
u3 -1.7646289091736898
duration 0.1443 0.0017
Included in ephemeris calculations
Light Curve ( PNG, PDF - high resolution )
Posteriors ( PNG, PDF - high resolution )
Observation Data ( JSON )
Filter Detail Min Max
I Cousins I 721.0 nm 875.0 nm
Organization Observer Code Secondary Observers
EPW TESS (collaborate/publish)

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