10/2/08
DIAL Daily Activity Log | Telescope | |||||||||||
Type: | Ch5 | Ch2 | Ch1 | |||||||||
Date: | 10/2/2008 | Time Zone: | GMT-5 | Primary Diameter | 16'' | 4'' | 4'' | |||||
Operator: | Kuang | F/# | 4.5 | 1 | 1 | |||||||
Sky Condition | Sky condition | cloudy | Field Stop | 1.5 mrads | 4.3mrads | 4.3mrads | ||||||
Electronics | ||||||||||||
Laser power | before data acquisition | |||||||||||
HV (kV) | Green(W) | UV(mW) | BBO Crystal | PMT | EMI8931QA | R7400U-03 | R7400U-03 | |||||
285 Laser: | 1.5 | 68 | 289.102 | Voltage | 1850V | 800V | 800V | |||||
291 Laser | 1.5 | 60 | 297.088 | Serial # | 49 | |||||||
Ch5 | Ch1 | LICEL | ||||||||||
Alignment | No | see below | ||||||||||
Disc Level | 8 | 8 | 8 | |||||||||
ADC Range (mV) | 500 | 500 | 100 | |||||||||
Data Description | ||||||||||||
Filter | Delay (us) | |||||||||||
Start time | End time | △t(min) | Ch1 | Ch2 | Ch5 | Ch1 | Ch2 | Ch5 | ||||
keep the alignment of last time | The actual delay is 0.5us. | actual delay is 13us | ||||||||||
12:00 | 12:18 | 2 | N/A | N/A | N/A | 0 | 202 for 285, 192 for 291 | 2 | ||||
align mini-receiver with 291 ( usually align it with 285 since 285 has a bigger separation) | ||||||||||||
12:39 | 12:45 | |||||||||||
check curtain plots, signal too weak, worse alignment, realign | ||||||||||||
13:08 | 17:10 | |||||||||||
Purpose | check mini receiver alignment | |||||||||||
Comments |
Range-corrected signal
Ozone retrieval (10-min resolution)