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)
