OSU/RC Queue Observing UTC 2010 Dec 08 (civil date Dec 07/08, 2010) =============================================================================== Observer: Paul Martini (OSU), David Atlee (OSU), Peter Garnavich (ND), Erica Hesselbach (ND) Observing Assistant: Gene Bechetti Support Astronomer : Marco Pedani Instrumentation : Doug Officer 00:19 Sunset 01:41 Twilight ends =========== Instrument: =========== LBT ========= Summary: ========= Fairly clear at sunset, except for some clouds on western horizon. Lost about 1hr of dark time and 1hr of twilight (for flats, collimation) at the start of the night. Lost another 30min to LBC and another 30min to telescope issues. Total lost about 2hr of dark time, split 50/50 between telescope and LBC issues. Observations of: OSU_qso: OSU_qso_0127 ri, gz1, gz2, gz3 OSU_qso: OSU_qso_0959 ri, gz1, gz2, gz3 OSU_qso: OSU_qso_0244 gz1 OSU_monitor: N2403, M81, N3077, N4605 (beg of twilight) OSU_clusterconf: RXJ0947p35, RXJ1048p31 Twilight flats in griz at the end of the night ============= Setup ============= 00:36 Starting twilight flats 00:40 Red channel not writing to disk 00:49 Communication timeout "RPC Client Failure" 00:54 Rebooting lbccontrol 01:08 LBC working again, but telescope not properly configured for LBC! 01:15 Starting biases to test LBC while telescope work continues 01:30 One stow pin stuck, telescope can't move 01:40 Going to first target to point 02:00 Starting dofpia sequence 02:30 Had to restart, hit a primary mirror limit, will need to redo pointing 02:34 Pointing again ============= OSU_qso ============= 02:43 Started OSU_qso_0127-ri (ended at 3:19, took 36min) 0.65" seeing! 03:19 dofpia sequence (took 5 minutes) 03:24 OSU_qso_0127-gz1 (delayed 2 min, maybe didn't hit play?) FWHM = 0.5" in z, 0.6" in g 04:03 dofpia sequence 04:10 OSU_qso_0127-gz2 04:18 Crash due to red channel comm error (took only 2g, 1z) (had to power cycle cameras) 04:32 dofpia sequence 04:34 OSU_qso_0127-gz2 restart (lost about 30 min to LBC) (0.6" z, 0.9" g) 05:11 dofpia sequence 05:16 OSU_qso_0127-gz3 (seeing degrading to 0.9" z, 1.2" g) ============= OSU_monitor ============= 05:58 Slew to NGC2403, run dofpia 06:07 NGC2403 (seeing about 0.75") ============= OSU_qso ============= 06:18 Correct co-pointing, slewing to ACT0191 (almost 1' off!) 06:39 Slew to OSU_qso_0244, updated collimation 06:42 OSU_qso_0244_gz1 (seeing 0.9" g, 0.7" z, airmass=1.5) ============= OSU_monitor ============= 07:20 Slew to M81, update collimation & focus 07:25 Unusual striping in collimation fields. Reading full image. 07:48 Restarting collimation, feature seems gone: maybe reflection? 07:56 M81 started 08:09 Slew to N3077, collimate 08:15 N3077 started ============= OSU_clusterconf ============= 08:30 Slew to RXJ0947p35 08:37 Azimuth wrap near limit, unwrapping (lost 10 min to telescope) 08:48 Start RXJ0947p35, airmass=1.3, seeing = 0.5"! 09:04 Slew to RXJ1048p31 09:10 Start RXJ1048p31 ============= OSU_qso ============= 09:28 Slew to QSO0959 09:35 Start OSU_qso_0959_gz1 09:42 Red mirror failed to focus: hit hardware limits. Pausing OB. 10:03 Restart OSU_qso_0959_gz1 (lost 30 min to telescope red mirror panic) Seeing is 0.5" z and 0.75" g 10:39 dofpia 10:43 Start OSU_qso_0959_ri (37 min) 11:20 dofpia 11:25 Start OSU_qso_0959_gz2 12:02 dofpia 12:06 Start OSU_qso_0959_gz3 ============= OSU_monitor ============= 12:43 Slew to NGC4605, start dofpia 12:52 NGC4605 (Note: twilight started at 12:42 -- data seem fine) ================ Twilight Flats ================ 13:07 Starting gi test skyflat 13:13 SkyFlat_gi_5 scaled by 10x (twilight +30 min), avg 4500k 13:19 SkyFlat_gi_5 scaled by 20x, avg 15k 13:27 SkyFlat_rz_5 scaled by 10x, avg 17k (twilight +45 min) 13:31 SkyFlat_rz_5 scaled by 5x, avg 20k