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Table 1.

Overview of the surveys.

Survey Area Bands Depth Seeing Pxl scale
[Sq. Deg.] [mag] [″] [″]
OGLE-IV(a) 3000 VI I ≤ 20 1.25–1.35 0.26
MagLiteS(b) 1200 gr g > 23.0 ≤1.5 0.263
SMASH(c) 480 ugriz g ≃ 24.8 1.13 0.263
STEP 53 griHα g ≃ 25.0 1.19 0.21
VMC(d) 184 YJKs Y ≃ 21.1 1.03 0.339
YMCA 110 gi g ≃ 24.8 1.13 0.21

Notes. The different columns show the name of the survey, the total portion of the sky observed in square degrees, the filters adopted, the 5σ limiting magnitude, the median seeing and the resolution of the pixel. To preserve the readability of the table, we indicated the depth and the seeing only for the deepest filter. (a)Udalski et al. (2015)(b)Drlica-Wagner et al. (2016); (c)(https://datalab.noirlab.edu/smash/smash.php); (d)Cioni et al. (2011).

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