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Table 1
Summary of the data used in the two analyses, including the exposure and mean zenith angle θz of the observations.
| Analysis | Telescopes | Exposure (h) | Time period | θz (°) |
|---|---|---|---|---|
| A | CT1-4 | 387 | 2004–2016 | 25.8 |
| B | CT1-5 | 136 | 2012–2016 | 23.2 |
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