| Files | Time [UT] | Comments | Cnt | S | Ope |
|---|
| L20080510_001 | 23:39:11 | Start of experiment | -7296 | 0 | |
| | Starting with just background - no Daystar and iris position | | | |
| | at prime focus is about 2mm open. Second iris is about | | | |
| | 5mm open | | | |
| 23:45:04 | put Daystar in place | -2311 | 0 | |
| 23:48:41 | clear skies by the way | -263 | 0 | |
| 23:58:44 | added a 20dB ND filter - improved the chopper shape | -207 | 0 | |
| | on the closing portion - I suspect SIN due to high bkgrnd | | | |
| 00:04:53 | took out 20 dB ND and placed a 3 dB ND - looks like the | | 0 | |
| | SIN is back | -138 | | |
| L20080510_001 | 00:11:08 | added another 3dB ND to make it 6dB - SIN is still present | | 0 | |
| | must look for this signature when running regularly | | | |
| 00:58:47 | started laser 1 about 40 minutes ago but had trouble | | 0 | |
| | with scope now it is converged | | | |
| | I also stopped HW plate tracking 40 minutes ago by | | | |
| | unplugging the motorized mount | | | |
| 01:04:01 | set the Rx HW plate to minimize laser 1 signal | | 0 | |
| | Daystar and 6 dB ND still in path | | | |
| 01:10:13 | removed 6dB NDs only Daystar now | -14 | 0 | |
| | backgrnd is lower and some weak SIN in data | | | |
| 01:16:21 | Daystar removed - also Rx cover has been on since 23:45 | | 0 | |
| 01:17:43 | Backgrnd signal stronger and SIN is certainly noticeable | | 0 | |
| | in closing portion of chopper window | | | |
| 01:24:30 | no noticeable SIN above laser 1 | | 0 | |
| Files | Time [UT] | Comments | Cnt | S | Ope |
|---|
| L20080510_001 | 01:26:21 | Rotated Rx HW plate 45 degrees to maximize laser 1 | | 0 | |
| | SIN noticeable in top portion of signal as it meets the | | | |
| | background | | | |
| L20080510_001 | 01:39:38 | Put Daystar back in | | 0 | |
| | Looks like that eliminated most of the SIN caused by laser 1 | | | |
| | some SIN still in closing portion of chopper. Will try to | | | |
| | iris at prime focus | | | |
| L20080510_001 | 01:49:27 | reduced prime focus iris | -46 | 0 | |
| | removed most SIN in closing portion of chopper | | | |
| 01:57:30 | moved chopper window down so I can see it open before | | 0 | |
| | laser 1 signal changed setting from 39 to 19 on dial | | | |
| 02:09:04 | reduced laser energy from 10 to 5 on power suppply | | 0 | |
| 02:18:02 | reduced power to level 4 any lower and the laser energy | | 0 | |
| | is unstable | | | |
| 02:26:03 | full power (level 10) and raised chopper to dial position 29 | | 0 | |
| 02:32:51 | firing laser 2 now - intermittent pulsing just want reference | | 0 | |
| | position | | | |
| 02:35:21 | moved chopper up to original position 39 | | 0 | |
| 02:41:40 | turned off laser 2 | | 0 | |
| 02:47:44 | turned on Rayleigh laser will need to converge and | | 0 | |
| | optimize polarization | | | |
| 03:13:45 | Rayleigh seems a bit low and chopper function is not as sharp | | 0 | |
| | also could not reduce the second iris below 6mm | | | |
| | may need to adjust but will leave for now | | | |
| Files | Time [UT] | Comments | Cnt | S | Ope |
|---|
| L20080511_000 | 03:15:02 | near local midnight - removed Daystar and will take | 357 | 0 | |
| | data for a while | | | |
| L20080511_000 | 03:43:11 | Nice clear night the entire time | | 0 | |
| L20080511_000 | 03:45:08 | by the way, adjusted HW plate and plugged in chopper | | 0 | |
| | at 03:15 so should be tracking | | | |
| L20080511_000 | 04:18:22 | Rayleigh signal is still looking good so let's keep the Dstar out | 404 | 0 | |
| | | | | |
| 05:30:58 | got a GPIB error message but checked SR430 and seems fine | | 0 | |
| | data continues to be recorded | | | |
| | | | | |
| L20080511_001 | 05:53:06 | remains nice and clear but sun coming up | | 0 | |
| | | | | |
| 05:57:12 | can see SIN in closing portoin of chopper window due to | | 0 | |
| | inc background | | | |
| | | | | |
| 05:59:43 | Daystar has been placed in the path | 27 | 0 | |
| | much improved profile looks like SIN was happening before | | | |
| | Daystar went in | | | |
| | | | | |
| L20080511_001 | 06:31:31 | too much sunlight sza =88 | | 0 | |
| | | | | |
| L20080511_001 | 06:32:04 | End of experiment | | 0 | |
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