Observation information
- date-obs: 2018-01-17
- time-obs: 21:41:10.283000000
- date-end: 2018-01-17
- time-end: 23:45:03.287900000
- obs_id: A04_174T01_9000001850
- exposure: 3751.218486
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001850_12475cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12475cztM0_level2_quad_clean.evt
|
| Size (bytes) | 771,079,680 | 91,494,720 |
| Size | 735.4 MB
| 87.3 MB
|
| Events in quadrant A | 10,041,873 | 507,080 |
| Events in quadrant B | 3,857,719 | 640,864 |
| Events in quadrant C | 2,967,148 | 629,408 |
| Events in quadrant D | 6,072,197 | 564,730 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 34090 | 2 |
| B | 0 | 15357 | 1 |
| C | 0 | 12623 | 1 |
| D | 0 | 22048 | 1 |
| 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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6123 | 2246 | 36.681365% |
| B | 6123 | 194 | 3.168382% |
| C | 6123 | 7 | 0.114323% |
| D | 6123 | 782 | 12.771517% |
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 | 7434 | 6124 | 1705 | 1705 | 22.94% | 27.84% |  |
| B | 7434 | 6125 | 114 | 114 | 1.53% | 1.86% |  |
| C | 7434 | 6125 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7434 | 6124 | 800 | 800 | 10.76% | 13.06% |  |
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 | 13 | 251 | 6482361 | 47039.41 | 689 | 678 | 137.8 |
| A | 0 | 23 | 572756 | 4151.73 | 689 | 678 | 137.8 |
| A | 12 | 189 | 86015 | 619.31 | 689 | 678 | 137.8 |
| B | 4 | 239 | 562511 | 3861.52 | 779 | 762 | 145.5 |
| B | 0 | 197 | 70500 | 479.39 | 779 | 762 | 145.5 |
| B | 3 | 64 | 55115 | 373.63 | 779 | 762 | 145.5 |
| C | 13 | 61 | 5517 | 27.02 | 760 | 767 | 175.8 |
| C | 3 | 233 | 3083 | 13.17 | 760 | 767 | 175.8 |
| C | 14 | 234 | 2698 | 10.98 | 760 | 767 | 175.8 |
| D | 1 | 52 | 3282003 | 18784.53 | 722 | 705 | 174.7 |
| D | 7 | 71 | 31622 | 176.99 | 722 | 705 | 174.7 |
| D | 2 | 234 | 22990 | 127.58 | 722 | 705 | 174.7 |
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 |  |