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Table 1

Observational circumstances.

Datea Airmassb Seeingb (″) tUVB (s) tVIS (s) tNIR (s) Star (Airmass)

2009-08-14UT07:24 1.073–1.146 0.7–0.8 2 × 1680 2 × 1680 2 × 1800 SA93-101 (1.113)
2009-09-29UT05:50 1.065–1.163 0.9–1.2 2 × 1680 2 × 1680 2 × 1800 SA93-101 (1.153)

Notes. We show the exposure time per each arm, tARM.

(a)

Beginning of the observation.

(b)

Minimum and maximum values during the span of the observation.

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