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-701.02, P = 5.71 days [Plot avg. error bars = ± 4.68 min.]
Linear ephemeris (this work): Tc = 5.71488311(Tc#) + 103.92446027

Figure: KOI-701.05, P = 12.44 days [Plot avg. error bars = ± 10.77 min.]
Linear ephemeris (this work): Tc = 12.44159759(Tc#) + 67.67594671

Figure: KOI-701.01, P = 18.16 days [Plot avg. error bars = ± 3.11 min.]
Linear ephemeris (this work): Tc = 18.16406188(Tc#) + 113.81318859

Figure: KOI-701.03, P = 122.39 days [Plot avg. error bars = ± 4.31 min.]
TTV_minimum: 138.25 ± 79.67 days, Amp_ttv_minimum: -8.75 ± 3.55 min.
TTV_maximum: 617.11 ± 94.07 days, Amp_ttv_maximum: 13.69 ± 3.55 min.
TTV_minimum: 1095.98 ± 120.53 days, Amp_ttv_minimum: -8.75 ± 3.55 min.
P_ttv: 957.73 ± 79.68 days.
Amp_ttv: 22.44 ± 5.02 minutes.
Lomb-Scargle periodogram, periodicity (P_ttv): 981.57 days; Power: 3.18; FAP: 0.0851.
Linear ephemeris (this work): Tc = 122.38696030(Tc#) + 83.40920463

Figure: KOI-701.04, P = 267.28 days [Plot avg. error bars = ± 7.54 min.]
TTV_minimum: ~ 594.87 days, Amp_ttv_minimum: ~ -17.10 min.
TTV_maximum: ~ 959.89 days, Amp_ttv_maximum: ~ 29.06 min.
TTV_minimum: ~ 1324.90 days, Amp_ttv_minimum: ~ -17.10 min.
(Low credibility because of too few data points.)
P_ttv: ~ 730.03 days.
Amp_ttv: ~ 46.16 minutes.
Lomb-Scargle periodogram, periodicity (P_ttv): ~ 1023.54 days; Power: ~ 1.39; FAP: ~ 0.271.
Linear ephemeris (this work): Tc = 267.28176140(Tc#) + 255.43841900

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

24 July 2014
KOI-701 (Kepler-62, KIC-9002278) System

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