July 23-28, 2007 LGS observing run
Night logs and results
7/24/07 UT
Clear, excellent seeing. Completed laser and BTO setup for first 4 hrs. Then measured bright star performance (~30% Strehl at K), observed several science targets, and measured vignetting on LOWFS. Laser stable at 5.0 W, FWHM=2.3".
palm_lgs_log_070724.pdf
7/26/07 UT
Partly cloudy, excellent seeing. AO acquisition camera power supply failed. Used temporary power supply and software integration of video signal. Unable to focus LLT or acquire faint stars. Observed one LGS and several NGS science targets. Laser 5.0W at start, 4.5 W and end of night.
palm_lgs_log_070726.pdf
7/27/07 UT
Partly cloudy, excellent seeing. 6 AO software crashes during night. Observed 2 LGS targets and several NGS backup targets, with frequent interruption by clouds. Laser power 7.0 W at start, 6.9 W at end of night, FWHM=2.6". LGS return significantly improved (200 cts @ 150 Hz.)
palm_lgs_log_070727.pdf
7/28/07 UT
Mostly cloudy, good seeing. No AO software crashes; used IDL background routine. Observed 4 LGS targets through thin clouds, with frequent interruptions by clouds (lost ~4hr). Laser power 7.2 W at start, 7.0 W at end of night, FWHM=2.4". Laser AOM driver failed at 12:35am, but Renu brought it back to life. LGS performance good despite clouds.
palm_lgs_log_070728.pdf
7/29/07 UT
Partly cloudy, excellent seeing. No AO software crashes. Observed 5 LGS targets, with several interruptions by clouds (lost ~2hr). Laser power 7.0 W at start, 6.9 W at end of night, FWHM=2.2". Laser AOM driver failed again at 03:15am, but Renu brought it back to life. Set new LGS Strehl record of ~45% in K (to be confirmed). Excellent end to a cloudy observing run.
palm_lgs_log_070729.pdf
Safety documents
- FAA documents:
- US-STRATCOM documents:
Personnel and engineering schedules
|
Mon. 7/23 |
Tue. 7/24 (NGS) |
Wed. 7/25 |
Thu. 7/26 |
Fri. 7/27 |
Sat. 7/28 |
Angione |
X |
X |
X |
X |
X |
X |
Bouchez |
X |
X |
X |
X |
X |
X |
Cromer |
X |
X |
X |
X |
X |
X |
Guiwits |
X |
|
|
|
|
|
Martin |
|
X |
X |
X |
X |
X |
Petrie |
X |
X |
|
|
|
|
Roberts |
X |
X |
X |
X |
? |
|
Tripathi |
X |
X |
X |
X |
X |
X |
Trinh |
X |
|
|
|
|
|
Troy |
|
|
|
|
X |
X |
Procedures and test plans
Please post your test plans on the
Test Plan Library page, and add a link below.
- AO setup
- AO system internal focus: doc, pdf
- AO bench setup and checkout: doc, pdf
- BTO setup
- BTO setup (v2.3): doc, pdf
- BTO checkout: doc (v2.3), pdf (v2.3)
- BTO shutdown (v1.1): doc, pdf
- Observing procedures:
- NGS Checkout (v3.1): doc, pdf
- Laser Acquisition (v5.1): doc, pdf
- LGS target acquisition (v3.4): doc, pdf
- Engineering experiments:
- AO Optimization on the laser at zenith: doc, pdf
- Low-order loop optimization: doc, pdf