Observation information
- date-obs: 2020-09-29
- time-obs: 21:11:01.962200000
- date-end: 2020-09-29
- time-end: 23:05:20.958700000
- obs_id: A09_120T02_9000003904
- exposure: 4185.71477254
- sourceid: Crab
- observer: avishek
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_120T02_9000003904_27069cztM0_level2.evt
| modeM0/AS1A09_120T02_9000003904_27069cztM0_level2_quad_clean.evt
|
| Size (bytes) | 572,178,240 | 99,437,760 |
| Size | 545.7 MB
| 94.8 MB
|
| Events in quadrant A | 2,846,594 | 700,893 |
| Events in quadrant B | 7,611,524 | 574,738 |
| Events in quadrant C | 2,855,689 | 696,697 |
| Events in quadrant D | 3,650,389 | 662,482 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11703 | 0 |
| B | 0 | 26113 | 0 |
| C | 0 | 11633 | 0 |
| D | 0 | 14344 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5368 | 35 | 0.652012% |
| B | 5332 | 2169 | 40.678920% |
| C | 5368 | 106 | 1.974665% |
| D | 5364 | 144 | 2.684564% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 6658 | 5384 | 1 | 1 | 0.02% | 0.02% |  |
| B | 6647 | 5362 | 1950 | 1950 | 29.34% | 36.37% |  |
| C | 6658 | 5384 | 2 | 2 | 0.03% | 0.04% |  |
| D | 6660 | 5380 | 139 | 139 | 2.09% | 2.58% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 14 | 235 | 100531 | 699.39 | 710 | 699 | 142.7 |
| A | 13 | 254 | 8840 | 57.03 | 710 | 699 | 142.7 |
| A | 3 | 137 | 6213 | 38.63 | 710 | 699 | 142.7 |
| B | 0 | 189 | 5191762 | 46159.83 | 595 | 582 | 112.5 |
| B | 10 | 246 | 52534 | 461.96 | 595 | 582 | 112.5 |
| B | 10 | 245 | 25313 | 219.91 | 595 | 582 | 112.5 |
| C | 14 | 238 | 113090 | 685.96 | 694 | 702 | 163.8 |
| C | 15 | 208 | 31583 | 188.48 | 694 | 702 | 163.8 |
| C | 13 | 61 | 4530 | 23.36 | 694 | 702 | 163.8 |
| D | 1 | 52 | 935648 | 5688.71 | 687 | 673 | 164.4 |
| D | 2 | 250 | 83924 | 506.53 | 687 | 673 | 164.4 |
| D | 15 | 217 | 28119 | 166.99 | 687 | 673 | 164.4 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |