Observation information
- date-obs: 2018-07-10
- time-obs: 01:33:12.269400000
- date-end: 2018-07-10
- time-end: 03:40:29.265600000
- obs_id: T02_060T01_9000002216
- exposure: 3685.86111856
- sourceid: Maxi J1820+070
- observer: aarthy
- ra_pnt: 275.091
- dec_pnt: 7.185631
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_060T01_9000002216_15038cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15038cztM0_level2_quad_clean.evt
|
| Size (bytes) | 444,087,360 | 91,143,360 |
| Size | 423.5 MB
| 86.9 MB
|
| Events in quadrant A | 3,364,063 | 589,045 |
| Events in quadrant B | 3,227,986 | 610,678 |
| Events in quadrant C | 3,428,692 | 581,196 |
| Events in quadrant D | 3,010,384 | 549,547 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13701 | 3 |
| B | 0 | 13233 | 2 |
| C | 0 | 13923 | 2 |
| D | 0 | 12916 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6159 | 31 | 0.503328% |
| B | 6159 | 57 | 0.925475% |
| C | 6159 | 26 | 0.422146% |
| D | 6159 | 20 | 0.324728% |
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 | 7470 | 6161 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7470 | 6161 | 4 | 4 | 0.05% | 0.06% |  |
| C | 7470 | 6161 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7470 | 6161 | 7 | 7 | 0.09% | 0.11% |  |
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 | 1 | 162 | 77498 | 469.22 | 814 | 801 | 163.5 |
| A | 12 | 189 | 62444 | 377.12 | 814 | 801 | 163.5 |
| A | 1 | 178 | 36773 | 220.07 | 814 | 801 | 163.5 |
| B | 3 | 64 | 26354 | 164.23 | 816 | 799 | 155.6 |
| B | 12 | 111 | 17807 | 109.3 | 816 | 799 | 155.6 |
| B | 11 | 111 | 15239 | 92.8 | 816 | 799 | 155.6 |
| C | 3 | 233 | 363351 | 1995.17 | 785 | 792 | 181.7 |
| C | 13 | 61 | 5749 | 27.28 | 785 | 792 | 181.7 |
| C | 3 | 232 | 2662 | 10.29 | 785 | 792 | 181.7 |
| D | 13 | 249 | 29710 | 153.86 | 779 | 759 | 188.2 |
| D | 10 | 70 | 29386 | 152.14 | 779 | 759 | 188.2 |
| D | 2 | 234 | 20025 | 102.39 | 779 | 759 | 188.2 |
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 |  |