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Table 1

LBC fields.

FIELD Coordinates Filter Exp. time (s.) Seeing () Mag. limit (AB)a

Q0933 09:33:35.739 +28:39:50.64 UBESSEL 27 300 1.04 26.19
Q0933 GSLOAN 14 900 0.99 26.42
Q0933 RSLOAN 9000 1.02 25.33
Q1623 16:25:44.125 +26:47:07.71 U SPECIAL 30 200 0.99 26.17
Q1623 G SLOAN 15 000 0.99 26.68
Q1623 R SLOAN 16 700 0.84 26.38
COSMOSb 09:59:55.855 +02:12:26.98 U SPECIAL 28 700 0.95 26.07
COSMOS G SLOAN 12 200 1.02 26.48
COSMOS R SLOAN 12 000 0.93 25.71

Notes.

(a)

Magnitude limit is at 10σ and in a 2 ×FWHM aperture for Q0933 and Q1623 and 3 ×FWHM in COSMOS as explained in Sect. 3.

(b)

The exposure time corresponds to the overlapping deepest area of the mosaic, while the mag. lim. and seeing are average values.

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