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Table 1

Characteristics of the collected ground-based transit light curves of Kepler-9b/c, collected in the framework of KOINet.

Date Planet Telescope σres N CAD Ttot TC
(yyyy.mm.dd) (ppt) (s) (hours)
2014.06.30 c OLT 1.2 m 3.6 103 79 2.3 - - - E O
2015.06.17 b ARC 3.5 m 1.9 2075 8 4.7 O I B - -
2015.07.25 b WISE 1 m 2.2 132 166 6.1 O I B E -
b CAHA 2.2 m 1.6 462 57 7.4 O I B E O
b LIV 2 m 1.2 545 46 7.1 - - B E O
b NOT 2.5 m 1.5 630 28 5.0 - - B E O
2015.08.14 b ARC 3.5 m 2.7 2095 7 3.8 - I B E -
2015.09.01 c ARC 3.5 m 2.2 2073 4 2.5 - - B E O
2015.10.10 b IAC 0.8 m 0.5 60 197 3.3 - I B - -
b TJO 0.8 m 1.8 133 61 2.3 - I B - -
2017.05.17 c NOT 2.5 m 0.8 219 79 4.9 O I B E -
2017.06.16 b NOT 2.5 m 1.1 624 30 5.4 - I B E O
2017.06.25 c NOT 2.5 m 1.2 416 42 4.9 O I B - -
2014.06.27 OANLH 1 m Technical difficulties
2014.07.23 OLT 1.2 m Technical difficulties
2014.08.12 OLT 1.2 m Weather problems
LIV 2 m Weather problems
2015.03.13 OLT 1.2 m Weather problems
2016.05.10 ARC 3.5 m Technical difficulties
2017.09.01 NOT 2.5 m Weather problems

Notes. The letter code to specify the transit coverage during each observation is the following: O: out of transit, before ingress. I: ingress. B: flat bottom. E: egress. O: out of transit, after egress.

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