Observation information
- date-obs: 2018-07-10
- time-obs: 04:53:12.264200000
- date-end: 2018-07-10
- time-end: 07:09:27.262800000
- obs_id: T02_060T01_9000002216
- exposure: 2945.96699037
- 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_15040cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15040cztM0_level2_quad_clean.evt
|
| Size (bytes) | 458,472,960 | 72,152,640 |
| Size | 437.2 MB
| 68.8 MB
|
| Events in quadrant A | 3,387,507 | 439,740 |
| Events in quadrant B | 3,338,516 | 455,420 |
| Events in quadrant C | 3,600,441 | 435,418 |
| Events in quadrant D | 3,132,610 | 416,484 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13749 | 3 |
| B | 0 | 13551 | 2 |
| C | 0 | 14511 | 2 |
| D | 0 | 13412 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 19 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6267 | 61 | 0.973352% |
| B | 6267 | 113 | 1.803096% |
| C | 6267 | 25 | 0.398915% |
| D | 6267 | 45 | 0.718047% |
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 | 7518 | 6269 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7518 | 6269 | 43 | 43 | 0.57% | 0.69% |  |
| C | 7518 | 6269 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7518 | 6269 | 19 | 19 | 0.25% | 0.30% |  |
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 | 111753 | 685.78 | 810 | 795 | 161.8 |
| A | 1 | 178 | 50699 | 308.43 | 810 | 795 | 161.8 |
| A | 1 | 161 | 44616 | 270.84 | 810 | 795 | 161.8 |
| B | 10 | 245 | 132807 | 855.31 | 809 | 790 | 154.3 |
| B | 3 | 64 | 19333 | 120.14 | 809 | 790 | 154.3 |
| B | 12 | 111 | 18519 | 114.86 | 809 | 790 | 154.3 |
| C | 3 | 233 | 549165 | 3030.28 | 780 | 787 | 181.0 |
| C | 13 | 61 | 5543 | 26.28 | 780 | 787 | 181.0 |
| C | 3 | 232 | 4896 | 22.71 | 780 | 787 | 181.0 |
| D | 7 | 223 | 62856 | 326.71 | 775 | 753 | 190.1 |
| D | 10 | 70 | 57162 | 296.76 | 775 | 753 | 190.1 |
| D | 2 | 152 | 41591 | 214.84 | 775 | 753 | 190.1 |
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 |  |