Observation information
- date-obs: 2017-07-27
- time-obs: 01:02:02.903500000
- date-end: 2017-07-27
- time-end: 03:33:30.907400000
- obs_id: A03_117T06_9000001404
- exposure: 3617.07291695
- sourceid: 4U 1957+115
- observer: dipak
- ra_pnt: 299.8509
- dec_pnt: 11.709
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_117T06_9000001404_09887cztM0_level2.evt
| modeM0/AS1A03_117T06_9000001404_09887cztM0_level2_quad_clean.evt
|
| Size (bytes) | 369,472,320 | 78,531,840 |
| Size | 352.4 MB
| 74.9 MB
|
| Events in quadrant A | 2,711,912 | 500,900 |
| Events in quadrant B | 2,723,060 | 518,731 |
| Events in quadrant C | 2,636,552 | 495,047 |
| Events in quadrant D | 2,736,293 | 472,574 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25 | 0 |
| B | 0 | 25 | 0 |
| C | 0 | 25 | 1 |
| D | 0 | 25 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13789 | 1957 |
| B | 0 | 13836 | 2113 |
| C | 0 | 13770 | 2064 |
| D | 0 | 14236 | 2169 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 10 |
| B | 0 | 135 | 9 |
| C | 0 | 136 | 24 |
| D | 0 | 136 | 16 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5608 | 54 | 0.962910% |
| B | 5537 | 74 | 1.336464% |
| C | 5554 | 14 | 0.252071% |
| D | 5532 | 30 | 0.542299% |
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 | 9088 | 6265 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9088 | 6238 | 0 | 0 | 0.00% | 0.00% |  |
| C | 9088 | 6234 | 0 | 0 | 0.00% | 0.00% |  |
| D | 9088 | 6218 | 3 | 3 | 0.03% | 0.05% |  |
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 | 13 | 251 | 11539 | 75.5 | 702 | 688 | 143.7 |
| A | 0 | 226 | 6445 | 40.06 | 702 | 688 | 143.7 |
| A | 12 | 194 | 5446 | 33.11 | 702 | 688 | 143.7 |
| B | 12 | 111 | 15950 | 112.95 | 698 | 682 | 135.2 |
| B | 11 | 111 | 13069 | 91.63 | 698 | 682 | 135.2 |
| B | 14 | 111 | 10965 | 76.07 | 698 | 682 | 135.2 |
| C | 13 | 61 | 5063 | 27.69 | 675 | 680 | 158.3 |
| C | 14 | 67 | 3937 | 20.58 | 675 | 680 | 158.3 |
| C | 10 | 22 | 1807 | 7.12 | 675 | 680 | 158.3 |
| D | 1 | 52 | 85396 | 489.81 | 660 | 647 | 173.0 |
| D | 2 | 16 | 49266 | 280.99 | 660 | 647 | 173.0 |
| D | 2 | 234 | 20913 | 117.13 | 660 | 647 | 173.0 |
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 |  |