Observation information
- date-obs: 2019-07-13
- time-obs: 11:01:02.107600000
- date-end: 2019-07-13
- time-end: 12:59:34.104600000
- obs_id: A05_176T03_9000003028
- exposure: 4537.80032244
- sourceid: NGC4841Aoffset
- observer: renbin
- ra_pnt: 194.3009
- dec_pnt: 28.49237
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_176T03_9000003028_20490cztM0_level2.evt
| modeM0/AS1A05_176T03_9000003028_20490cztM0_level2_quad_clean.evt
|
| Size (bytes) | 512,144,640 | 88,735,680 |
| Size | 488.4 MB
| 84.6 MB
|
| Events in quadrant A | 3,055,471 | 581,716 |
| Events in quadrant B | 3,372,973 | 583,769 |
| Events in quadrant C | 3,026,331 | 561,202 |
| Events in quadrant D | 5,629,968 | 522,469 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13257 | 1 |
| B | 0 | 14060 | 1 |
| C | 0 | 12869 | 1 |
| D | 0 | 21033 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6277 | 86 | 1.370081% |
| B | 6278 | 65 | 1.035362% |
| C | 6278 | 79 | 1.258363% |
| D | 6277 | 662 | 10.546439% |
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 | 7112 | 6277 | 31 | 31 | 0.44% | 0.49% |  |
| B | 7113 | 6278 | 9 | 9 | 0.13% | 0.14% |  |
| C | 7113 | 6278 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7112 | 6277 | 541 | 541 | 7.61% | 8.62% |  |
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 | 5 | 16 | 110796 | 716.17 | 750 | 734 | 153.7 |
| A | 12 | 96 | 37395 | 238.55 | 750 | 734 | 153.7 |
| A | 9 | 143 | 9813 | 59.08 | 750 | 734 | 153.7 |
| B | 0 | 197 | 132112 | 905.67 | 749 | 730 | 145.1 |
| B | 0 | 189 | 113221 | 775.44 | 749 | 730 | 145.1 |
| B | 0 | 190 | 69844 | 476.43 | 749 | 730 | 145.1 |
| C | 14 | 238 | 111830 | 655.11 | 721 | 722 | 169.6 |
| C | 3 | 233 | 89810 | 525.27 | 721 | 722 | 169.6 |
| C | 0 | 207 | 15180 | 85.24 | 721 | 722 | 169.6 |
| D | 7 | 38 | 662686 | 3872.94 | 710 | 690 | 170.9 |
| D | 5 | 222 | 641538 | 3749.21 | 710 | 690 | 170.9 |
| D | 7 | 238 | 522717 | 3054.06 | 710 | 690 | 170.9 |
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 |  |