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Table 1

Journal of target observations. The average S/N values in the stellar continua are given.

Obs. date UT Slit Exp. (s) S/Na

2MJ2331-2749:
2007-Jun.-24 14:33 0.432 × 12 2 × 200  ~50
2007-Jun.-25 14:12 0.432 × 12 2 × 200  ~60

GJ 406:
2007-Apr.-30  7:03 0.432 × 12 2 × 120  ~50
2007-Dec.-23 15:32 0.432 × 12 2 ×  30  ~50

GJ 905:
2007-Jun.-25 14:42 0.432 × 12 2 ×  20  ~110
2007-Oct.-27 10:51 0.432 × 12 2 × 120  ~280

GJ 1156:
2007-Jun.-24  7:24 0.432 × 12 2 × 120  ~140
2007-Jun.-25 15:55 0.432 × 12 4 × 300  ~240

LHS 1363:
2007-Oct.-26 12:09 0.432 × 12 2 × 300  ~110
2007-Oct.-27 12:13 0.432 × 12 2 × 300  ~110

LP 412-31:
2007-Oct.-26 12:44 0.432 × 12 2 × 300  ~60
2007-Oct.-27 12:56 0.432 × 12 2 × 300  ~50

RXJ2208.2:
2007-Jun.-24 13:49 0.432 × 12 2 × 120  ~70
2007-Jun.-25 13:40 0.432 × 12 2 × 120  ~70

vB10:
2001-Jun.-15 14:06 0.576 × 12 2 × 100  ~60
2001-Nov.- 2  4:43 0.432 × 12 2 × 120  ~60
2001-Nov.- 2  5:39 0.432 × 12 2 × 120  ~60
2007-Jun.-25 13:22 0.432 × 12 2 × 120  ~70
2008-Jul.-28  6:07 0.432 × 12 2 × 120  ~20

Notes. 

(a)

S/N on average in the pseudo stellar continuum per spectral pixel around 1.265 μm.

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