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KOI's (Blue)  or
K2 Objects (Green)
TTVs are derived from Q1-Q17 Kepler data.  x-axes: “Observed Tc” (Mid-Transit Time): EXOFAST’s best-fits from Normalized PDCSAP_FLUX Kepler light flux vs. time (BJD_tdb - 2454900) data.  y-axes: “(O-C)”: difference between Observed Tc and the Calculated Tc from the graphically obtained linear ephemeris.

KOI-285.03, P = 49.36 days [Plot avg. error bars = ± 7.84 min.]

TTV_minimum: 109.43 ± 42.27 days, Amp_ttv_minimum: -42.08 ± 14.29 min.
TTV_maximum: 354.66 ± 44.91 days, Amp_ttv_maximum: 44.91 ± 14.29 min.
TTV_minimum: 599.90 ± 49.88 days, Amp_ttv_minimum: -42.08 ± 14.29 min.
TTV_maximum: 845.13 ± 56.59 days, Amp_ttv_maximum: 44.91 ± 14.29 min.
TTV_minimum: 1090.36 ± 64.49 days, Amp_ttv_minimum: -42.08 ± 14.29 min.
TTV_maximum: 1335.59 ± 73.20 days, Amp_ttv_maximum: 44.91 ± 14.29 min.
P_ttv: 490.46 ± 22.02 days.
Amp_ttv: 85.11 ± 20.22 minutes.
Lomb-Scargle periodogram, periodicity (P_ttv): 490.22 days; Power: 4.56; FAP: 0.0670.
Linear ephemeris (this work): Tc = [49.35702982 ± 0.000770727](Tc#) + [67.28148994 ± 0.013117455]


References:
• Numerous literature and major Tc#, Tc, and TTV tabulation references can be found on my "Summary" webpage following the table.

12 Feb 2015
Kepler KOI-285.03 (ExoP candidate; KIC-6196457) 4-(or more?)-Planet System

Exoplanet-Science.com