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Table 1

Log of optical and near infrared observations.

Tel. Instrument                   α (J2000)  δ Field Filter Observing date Exposure Seeing Compl. Limit
(h   m   s)     (°    ′    ′′) (s) (arcsec) (mag) (mag)

GTC OSIRIS 05 38 26.8  −  02 46 42 S Ori 73 i 2009 Oct. 16, 2010 Jan. 11 12 636 0.95 25.0 26.0
OSIRIS 05 38 17.9  −  02 37 08 S Ori 70 i 2009 Oct. 13–15, 2009 Nov. 19 12 506 0.90 25.0 26.0

VISTA NIRCAM 05 38 20.6  −  02 47 46 σ Ori Z 2009 Oct. 20, 21 6084 0.80 22.6 23.2
Y 2009 Oct. 20 1008 0.90 21.0 21.4
J 2009 Oct. 19, 20 2112 0.90 21.4 21.8
H 2009 Oct. 20 288 0.90 19.6 20.0
K s 2009 Oct. 20 288 0.70 18.6 19.1

VLT HAWK-I 05 38 08.5  −  02 47 12 S Ori 73 J 2008 Sep. 19 160 0.64 22.5 23.2
H 2008 Dec. 8 8410 0.34 22.8 23.5
C H4off 2009 Feb. 24, 2009 Mar. 28 27 000 0.51 22.2 23.0
VLT HAWK-I 05 38 03.3  −  02 35 07 S Ori 70 J 2008 Oct. 27 160 0.75 21.7 22.2
H 2009 Mar. 24 8410 0.52 21.5 22.2
C H4off 2009 Mar. 16 13 500 0.57 21.0 21.8
VLT HAWK-I 05 38 41.5  −  02 56 57 J 2009 Feb. 11 160 0.63 22.0 22.6
H 2009 Mar. 30 8410 0.75 21.0 21.5
C H4off 2009 Mar. 29 12 615 0.65 20.5 21.0

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