Observation information
- date-obs: 2018-08-19
- time-obs: 23:46:32.331700000
- date-end: 2018-08-20
- time-end: 02:08:41.028800000
- obs_id: T02_086T01_9000002316
- exposure: 3896.59011684
- sourceid: 4U 1636-536
- observer: sudip
- ra_pnt: 250.2312
- dec_pnt: -53.75139
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_086T01_9000002316_15644cztM0_level2.evt
| modeM0/AS1T02_086T01_9000002316_15644cztM0_level2_quad_clean.evt
|
| Size (bytes) | 463,921,920 | 87,586,560 |
| Size | 442.4 MB
| 83.5 MB
|
| Events in quadrant A | 3,161,634 | 550,252 |
| Events in quadrant B | 3,323,421 | 563,133 |
| Events in quadrant C | 3,260,745 | 549,746 |
| Events in quadrant D | 3,852,262 | 525,478 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13670 | 3 |
| B | 0 | 13950 | 2 |
| C | 0 | 13747 | 2 |
| D | 0 | 15961 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6647 | 36 | 0.541598% |
| B | 6647 | 36 | 0.541598% |
| C | 6647 | 59 | 0.887618% |
| D | 6647 | 168 | 2.527456% |
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 | 7808 | 6648 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7808 | 6648 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7808 | 6648 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7808 | 6648 | 113 | 113 | 1.45% | 1.70% |  |
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 | 15 | 157 | 7803 | 43.26 | 816 | 801 | 161.9 |
| A | 15 | 69 | 7481 | 41.27 | 816 | 801 | 161.9 |
| A | 0 | 226 | 7235 | 39.75 | 816 | 801 | 161.9 |
| B | 0 | 214 | 31769 | 200.12 | 824 | 806 | 154.7 |
| B | 0 | 189 | 20769 | 129.03 | 824 | 806 | 154.7 |
| B | 12 | 111 | 17886 | 110.39 | 824 | 806 | 154.7 |
| C | 14 | 238 | 124747 | 676.19 | 796 | 801 | 183.3 |
| C | 3 | 233 | 19272 | 100.77 | 796 | 801 | 183.3 |
| C | 10 | 187 | 9939 | 49.85 | 796 | 801 | 183.3 |
| D | 1 | 52 | 801454 | 4216.13 | 792 | 770 | 189.9 |
| D | 2 | 234 | 24493 | 124.92 | 792 | 770 | 189.9 |
| D | 10 | 40 | 12214 | 60.26 | 792 | 770 | 189.9 |
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 |  |