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.

Figure: KOI-1432.04, P = 38.29 days [Plot avg. error bars = ± 14.75 min.]
TTV_minimum: 319.02 ± 36.78 days, Amp_ttv_minimum: -39.50 ± 10.48 min.
TTV_maximum: 571.12 ± 41.36 days, Amp_ttv_maximum: 53.45 ± 10.48 min.
TTV_minimum: 823.21 ± 47.65 days, Amp_ttv_minimum: -39.50 ± 10.48 min.
TTV_maximum: 1075.31 ± 55.07 days, Amp_ttv_maximum: 53.45 ± 10.48 min.
TTV_minimum: 1327.41 ± 63.23 days, Amp_ttv_minimum: -39.50 ± 10.48 min.
P_ttv: 504.19 ± 20.12 days.
Amp_ttv: 92.95 ± 14.82 minutes.
Lomb-Scargle periodogram, candidate P_ttv: 494.37 days; Power: 6.61; FAP: 0.00173.
Linear ephemeris (this work): Tc = [38.28529311 ± 0.00063526](Tc#) + [76.31014730 ± 0.01349664]


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

28 May 2015
     Kepler KOI-1432 (Kepler-299, KIC-11014932) 5-(or more?)-Planet System

Discussion:
A sinusoidal curve-fit of the [(O-C) vs. Time] data for KOI-1432.04 (Kepler-299e) showed (Figure below) a periodicity (P_ttv) of 504.19 ± 20.12 days; a Lomb-Scargle Periodogram (LSP) of the same data gave a high-credibility periodicity of 494.37 days.  Potentially, one other (a 5th), as yet unseen, non-transiting planet is gravitationally interacting with KOI-1432.04 in this stellar system.
It appears that no (or very minor) TTVs are associated with the other three transiting planets in this system.

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