Observation information
- date-obs: 2017-07-14
- time-obs: 03:28:20.666200000
- date-end: 2017-07-14
- time-end: 05:30:15.667800000
- obs_id: A03_068T01_9000001380
- exposure: 3456.75010154
- sourceid: 4U 1957+11
- observer: devraj
- ra_pnt: 299.8505
- dec_pnt: 11.70893
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_068T01_9000001380_09696cztM0_level2.evt
| modeM0/AS1A03_068T01_9000001380_09696cztM0_level2_quad_clean.evt
|
| Size (bytes) | 437,152,320 | 80,432,640 |
| Size | 416.9 MB
| 76.7 MB
|
| Events in quadrant A | 3,010,277 | 514,936 |
| Events in quadrant B | 3,045,259 | 527,585 |
| Events in quadrant C | 3,556,766 | 483,729 |
| Events in quadrant D | 3,211,968 | 483,004 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 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 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12606 | 2 |
| B | 0 | 12671 | 1 |
| C | 0 | 14489 | 1 |
| D | 0 | 13417 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6105 | 65 | 1.064701% |
| B | 6105 | 70 | 1.146601% |
| C | 6105 | 283 | 4.635545% |
| D | 6105 | 70 | 1.146601% |
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 | 7315 | 6106 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7315 | 6106 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7315 | 6106 | 203 | 203 | 2.78% | 3.32% |  |
| D | 7315 | 6106 | 18 | 18 | 0.25% | 0.29% |  |
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 | 0 | 226 | 7268 | 41.54 | 781 | 769 | 156.4 |
| A | 12 | 194 | 6226 | 34.88 | 781 | 769 | 156.4 |
| A | 13 | 248 | 3962 | 20.41 | 781 | 769 | 156.4 |
| B | 12 | 111 | 17444 | 111.69 | 780 | 764 | 149.3 |
| B | 4 | 173 | 15358 | 97.72 | 780 | 764 | 149.3 |
| B | 11 | 111 | 14140 | 89.57 | 780 | 764 | 149.3 |
| C | 14 | 234 | 698564 | 4131.06 | 733 | 739 | 168.9 |
| C | 13 | 61 | 5379 | 27.47 | 733 | 739 | 168.9 |
| C | 3 | 202 | 1810 | 6.34 | 733 | 739 | 168.9 |
| D | 1 | 52 | 275249 | 1441.06 | 738 | 723 | 190.5 |
| D | 8 | 195 | 84310 | 438.77 | 738 | 723 | 190.5 |
| D | 14 | 49 | 32640 | 167.54 | 738 | 723 | 190.5 |
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 |  |