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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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