TTVs are derived from Q0-Q17 Long-Cadence 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-3522.01, P = 241.07 days [Plot avg. error bars = ± 0.057 min., smaller than symbols]
TTV_minimum: 314.86 ± 42.23 days, Amp_ttv_minimum: -1.44 ± 0.45 min.
TTV_maximum: 618.91 ± 48.01 days, Amp_ttv_maximum: 1.39 ± 0.45 min.
TTV_minimum: 922.96 ± 56.27 days, Amp_ttv_minimum: -1.44 ± 0.45 min.
TTV_maximum: 1227.01 ± 66.09 days, Amp_ttv_maximum: 1.39 ± 0.45 min.
P_ttv: 608.10 ± 26.07 days.
Amp_ttv: 2.83 ± 0.64 minutes.
Lomb-Scargle periodogram, periodicity (P_ttv): 605.24 days; Power: 2.20; FAP: 0.0423.
Linear ephemeris (this work): Tc = 241.07071780(Tc#) + 156.99775033


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

3 Nov 2014
Kepler KOI-3522 (KIC-12021387) 2-(or more?)-Planet System

Exoplanet-Science.com

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