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Table 1

Analysis results and for each night and the complete data set.

Date MJD Tlive Zmean NON NOFF Excess Sign. I0 (1 TeV) Index Flux >1 TeV Flux >5 TeV
2013 −56 300 (s) (deg.) σ

03-06 57.8 3181 54 202 498 175 20 3.5 ± 0.5 2.6 ± 0.1 1.89 ± 0.19 0.11 ± 0.03
03-07 58.8 3152 52 223 455 198 23 4.2 ± 0.4 2.8 ± 0.1 2.37 ± 0.21 0.08 ± 0.03
03-08 59.8 3155 53 184 460 159 19 3.5 ± 0.5 2.6 ± 0.1 2.24 ± 0.21 0.18 ± 0.04
03-09 60.8 4827 55 199 557 169 19 3.3 ± 0.5 2.7 ± 0.1 1.76 ± 0.18 0.12 ± 0.03
03-13 64.8 1596 54 62 173 53 11 5.2 ± 1.4 3.4 ± 0.3 2.06 ± 0.36 0.06 ± 0.05
Full set 15911 54 870 2143 754 42 3.8 ± 0.2 2.7 ± 0.1 2.14 ± 0.10 0.12 ± 0.01

Notes. Modified Julian date (MJD) of the start of the observation, live-time (Tlive), mean zenith angle (Zmean), the number of ON and OFF source events, the excess and its significance. The normalisation at 1 TeV (I0) is given in units of (10-11 cm-2 s-1 TeV-1) and integral fluxes above 1 TeV and above 5 TeV in units of 10-11 cm-2 s-1. The underlying spectral model was assumed to be a power law. The given errors are statistical ones. The estimated systematic errors are 30% for all fluxes and 0.1 for spectral indices.

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