TTVs are derived from Q0-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-865.01, P = 119.02 days [Plot avg. error bars = ± 1.54 min.]
TTV_maximum: 300.33 ± 139.97 days, Amp_ttv_maximum: 1.20 ± 0.57 min.
TTV_minimum: 827.90 ± 186.36 days, Amp_ttv_minimum: -1.69 ± 0.57 min.
TTV_maximum: 1355.48 ± 253.03 days, Amp_ttv_maximum: 1.20 ± 0.57 min.
P_ttv: 1055.15 ± 168.27 days.
Amp_ttv: 2.89 ± 0.81 minutes.
Lomb-Scargle periodogram, periodicity (P_ttv): 1089.95 days; Power: 2.89; FAP: 0.1498.
Linear ephemeris (this work): Tc = 119.02054380(Tc#) + 155.24023924


For literature references, including Tc#, Tc, and major TTV tabulations, see my "Summary" webpage.

27 Sep 2014
Kepler KOI-865 (KIC-6862328) 2-(or more?)-Planet System

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