Observers: Wiphu Rujopakarn, Ian McGreer, Marie Rex, Olga Kuhn TO: Steven Allason

open at 6:30pm, clear, wind from NW

7:12 start Ks sky flats, #2 - 11 (4s)

7:17 start H sky flats, #12 - 21 (2s)

7:19 start J sky flats, #22 - 31 (2s)

7:24 Ks band low count flats, #35 - 44 (15s)

7:30 H band #45 - 54 (7s)

7:35 J band #55 - 64 (15s)

8:00 seeing ~3 " going to telluric for A1758 (mos_tell_a1758_acq.txt, mos_tell_a1758_sci_h.txt)

#65 -- 67 telluric acquisition #67 -- 72 telluric spectra in slits

8:15 doing MOS acquisition for A1758 ( mos_a1758_acq.txt)

#73 -- 78 acquisition images

Guide star is too faint for these conditions (Rmag = 15.3) choosing a brighter guide star (Rmag=10.7)

8:40 redoing MOS acquisition for A1758 with new guide star (mos_a1758_acq.txt, old guide star commented out)

Seeing ~2"

9:00 starting H-band science script for A1758 (mos_a1758_sci_h.txt)

#83 -- 106 H-band spectra

11:10 doing flats for H-band, K-band (mos_a1758_flt_h.txt, mos_a1758_flt_k.txt)

#107 -- 116 H-band #117 -- 126 J-band

11:15 return to telluric (mos_tell_a1758_acq.txt, mos_tell_a1758_sci_h.txt, mos_tell_a1758_sci_k2.txt)

#127 -- 130 telluric acquisition #131 -- 134 H-band telluric spectra #135 -- 138 K-band telluric spectra

11:40 return to science field, lost pointing, had to reacquire guide star (still using bright guide star)

Seeing ~ 2.3"

11:50 doing MOS acquisition for A1758 (mos_a1758_acq.txt)

#139 -- 142 acquisition images

12:00 starting K-band science script for A1758 (mos_a1758_sci_k.txt)

#143-- 166 K-band spectra

2:15 doing flats for K-band, J-band (mos_a1758_flt_k.txt, mos_a1758_flt_j.txt)

#167 -- 176 H-band #177 -- 196 J-band

2:25 going to telluric, lost pointing, have to restart GSC

2:30 return to telluric (mos_tell_a1758_acq.txt, mos_tell_a1758_sci_k.txt, mos_tell_a1758_sci_j2.txt)

#197 -- 199 telluric acquisition #200 -- 203 K-band telluric spectra #204 -- 207 J-band telluric spectra

Seeing ~ 1.3

2:50 doing MOS acquisition for A1758 (mos_a1758_acq.txt)

#208 -- 211 acquisition images

3:00 starting J-band science script for A1758 (mos_a1758_sci_j.txt)

#212-- J-band spectra

Seeing 1"--2"

-- IanMcGreer - 02 May 2011
Topic revision: r4 - 02 May 2011, XiaohuiFan
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