Observation information
- date-obs: 2017-01-27
- time-obs: 16:30:49.203300000
- date-end: 2017-01-27
- time-end: 18:54:22.201600000
- obs_id: A02_111T01_9000000986
- exposure: 5714.29590391
- sourceid: Cen X-3
- observer: nirmal
- ra_pnt: 170.3158
- dec_pnt: -60.623
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_111T01_9000000986_07217cztM0_level2.evt
| modeM0/AS1A02_111T01_9000000986_07217cztM0_level2_quad_clean.evt
|
| Size (bytes) | 481,950,720 | 104,765,760 |
| Size | 459.6 MB
| 99.9 MB
|
| Events in quadrant A | 3,325,633 | 685,367 |
| Events in quadrant B | 3,380,815 | 693,922 |
| Events in quadrant C | 3,029,645 | 679,510 |
| Events in quadrant D | 4,395,114 | 637,303 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14515 | 3 |
| B | 0 | 14645 | 2 |
| C | 0 | 13896 | 2 |
| D | 0 | 18179 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6843 | 62 | 0.906035% |
| B | 6843 | 67 | 0.979103% |
| C | 6843 | 32 | 0.467631% |
| D | 6843 | 303 | 4.427883% |
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 | 8613 | 6843 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8613 | 6844 | 1 | 1 | 0.01% | 0.01% |  |
| C | 8613 | 6843 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8613 | 6844 | 190 | 190 | 2.21% | 2.78% |  |
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 | 8 | 15 | 232796 | 1425.32 | 796 | 780 | 162.8 |
| A | 14 | 111 | 9387 | 52.87 | 796 | 780 | 162.8 |
| A | 0 | 226 | 7502 | 41.29 | 796 | 780 | 162.8 |
| B | 4 | 81 | 90784 | 582.63 | 804 | 784 | 154.5 |
| B | 0 | 214 | 86274 | 553.43 | 804 | 784 | 154.5 |
| B | 0 | 219 | 56824 | 362.78 | 804 | 784 | 154.5 |
| C | 9 | 68 | 8555 | 43.09 | 772 | 774 | 180.6 |
| C | 13 | 61 | 6174 | 29.91 | 772 | 774 | 180.6 |
| C | 8 | 128 | 4137 | 18.63 | 772 | 774 | 180.6 |
| D | 2 | 216 | 965768 | 5160.08 | 757 | 732 | 187.0 |
| D | 2 | 63 | 211503 | 1127.0 | 757 | 732 | 187.0 |
| D | 2 | 14 | 115800 | 615.27 | 757 | 732 | 187.0 |
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 |  |