|C37||Fulbright||6330||9||#1604 or RED grism?||(status of filter is 'poor'... but usable; change for Red grism?)
See Note 3: take ThAr exposure to help decide between filter and grism.
|C17||Bohlender||6648||8||#1617||This filter has already been used with success at that wavelength.|
|4455||12 or 13?||Blue||See Note 1: use ff lamp exposures to help decide which order.|
|7800||7||#1704||See Note 2: No need to setup if not enough time.|
|4243||13||Blue||See Note 2: No need to setup if not enough time.|
|D||Manset||6707||8||#1626||Li I line at 6707
and He I line at 6687
|4130||14||Blue||near H delta
4128 and 4130 Si lines
Note 1: Bohlender says: "The only thing I'm not certain about is the order at 4455A. I've observed around 4520 in 12th order and 4232 is definitely 13th order but 4455 is uncertain. Can you do your usual test of throughputs with the ff lamp in this region if you don't already have info for it? Landstreet/Sigut have likely observed near here before so you may already have a setup close to this. If it's inconclusive then setups in both orders would be useful and I could quickly test them on the sky on the first night."
Note 2: Bohlender says: "Note that only the first 3 (6648, 4455, and 7281) are for my main program so don't worry about the other two if staff are pressed for time - I can dial them in the afternoon before my run starts and they will only be used for some other quick science if I have time during lulls in available targets for the main program."
Note 3: Fullbright says: "It would be
interesting to see a long-exposure arc spectra using the grism. If
there is any overlap, it should be clear from the length of the lines in
the cross-dispersion direction. If they don't overlap, and it gives
more throughput, then I cannot see why one wouldn't use it." So: take one long-exposure Th/Ar spectra with the red grism,
and another one with the filter #1604. Then, we will decide which