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Kepler KOI-622 (KIC-12417486) System
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-622.01, P = 155.04 days [Plot avg. error bars = ± 3.73 min.]
TTV_minimum: 166.26 ± 88.58 days, Amp_ttv_minimum: -4.47 ± 1.53 min.
TTV_maximum: 608.84 ± 105.04 days, Amp_ttv_maximum: 5.35 ± 1.53 min.
TTV_minimum: 1051.43 ± 133.65 days, Amp_ttv_minimum: -4.47 ± 1.53 min.
P_ttv: 885.17 ± 85.32 days.
Amp_ttv: 9.83 ± 2.16 minutes.
Lomb-Scargle periodogram, periodicity (P_ttv): 904.84 days; Power: 3.02; FAP: 0.0432.
Linear ephemeris (this work): Tc = 155.04215747(Tc#) + 146.50397802

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

24 July 2014