Observation information
- date-obs: 2018-01-18
- time-obs: 18:42:40.344100000
- date-end: 2018-01-18
- time-end: 20:40:59.347600000
- obs_id: A04_174T01_9000001850
- exposure: 3721.16207173
- 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_12488cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12488cztM0_level2_quad_clean.evt
|
| Size (bytes) | 458,991,360 | 86,397,120 |
| Size | 437.7 MB
| 82.4 MB
|
| Events in quadrant A | 3,035,746 | 559,074 |
| Events in quadrant B | 4,123,133 | 556,163 |
| Events in quadrant C | 2,816,804 | 558,291 |
| Events in quadrant D | 3,519,384 | 525,607 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13060 | 2 |
| B | 0 | 16222 | 1 |
| C | 0 | 12338 | 1 |
| D | 0 | 14438 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5969 | 53 | 0.887921% |
| B | 5969 | 297 | 4.975708% |
| C | 5969 | 36 | 0.603116% |
| D | 5969 | 168 | 2.814542% |
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 | 7100 | 5970 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7100 | 5970 | 181 | 181 | 2.55% | 3.03% |  |
| C | 7100 | 5970 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7100 | 5970 | 123 | 123 | 1.73% | 2.06% |  |
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 | 0 | 23 | 60217 | 398.89 | 732 | 720 | 149.2 |
| A | 12 | 189 | 59611 | 394.83 | 732 | 720 | 149.2 |
| A | 1 | 162 | 31298 | 205.01 | 732 | 720 | 149.2 |
| B | 4 | 239 | 1136287 | 8247.87 | 726 | 711 | 137.7 |
| B | 0 | 197 | 53248 | 381.58 | 726 | 711 | 137.7 |
| B | 11 | 51 | 20138 | 141.1 | 726 | 711 | 137.7 |
| C | 15 | 208 | 21580 | 125.45 | 715 | 722 | 166.3 |
| C | 13 | 61 | 5159 | 26.69 | 715 | 722 | 166.3 |
| C | 5 | 96 | 3322 | 15.64 | 715 | 722 | 166.3 |
| D | 1 | 52 | 560784 | 3290.98 | 705 | 687 | 170.2 |
| D | 9 | 85 | 89483 | 521.74 | 705 | 687 | 170.2 |
| D | 7 | 71 | 72950 | 424.6 | 705 | 687 | 170.2 |
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 |  |