Observation information
- date-obs: 2015-10-07
- time-obs: 12:56:36.362500000
- date-end: 2015-10-07
- time-end: 14:58:28.349700000
- obs_id: P01_140T01_9000000004
- exposure: 4472.68424103
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5635
- dec_pnt: 35.20176
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_140T01_9000000004_00140cztM0_level2.evt
| modeM0/AS1P01_140T01_9000000004_00140cztM0_level2_quad_clean.evt
|
| Size (bytes) | 940,685,760 | 78,724,800 |
| Size | 897.1 MB
| 75.1 MB
|
| Events in quadrant A | 6,900,150 | 504,882 |
| Events in quadrant B | 6,911,901 | 514,141 |
| Events in quadrant C | 6,382,079 | 498,785 |
| Events in quadrant D | 7,917,497 | 468,541 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 2 |
| B | 0 | 116 | 2 |
| C | 0 | 116 | 2 |
| D | 0 | 116 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24702 | 149 |
| B | 0 | 24702 | 127 |
| C | 0 | 23158 | 132 |
| D | 0 | 27730 | 136 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5686 | 11 | 0.193458% |
| B | 5691 | 14 | 0.246002% |
| C | 5689 | 1 | 0.017578% |
| D | 5690 | 330 | 5.799649% |
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 | 7313 | 5690 | 169 | 169 | 2.31% | 2.97% |  |
| B | 7313 | 5697 | 130 | 130 | 1.78% | 2.28% |  |
| C | 7313 | 5696 | 64 | 64 | 0.88% | 1.12% |  |
| D | 7313 | 5695 | 626 | 626 | 8.56% | 10.99% |  |
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 | 14 | 171 | 25035 | 80.96 | 1746 | 1706 | 288.2 |
| A | 12 | 150 | 24235 | 78.18 | 1746 | 1706 | 288.2 |
| A | 14 | 10 | 17650 | 55.33 | 1746 | 1706 | 288.2 |
| B | 8 | 236 | 95998 | 250.08 | 1707 | 1712 | 377.0 |
| B | 8 | 5 | 43129 | 109.85 | 1707 | 1712 | 377.0 |
| B | 0 | 151 | 31194 | 78.2 | 1707 | 1712 | 377.0 |
| C | 3 | 32 | 102814 | 226.04 | 1582 | 1636 | 447.6 |
| C | 3 | 0 | 14322 | 28.34 | 1582 | 1636 | 447.6 |
| C | 4 | 253 | 10542 | 19.9 | 1582 | 1636 | 447.6 |
| D | 1 | 30 | 132906 | 289.61 | 1702 | 1655 | 453.2 |
| D | 1 | 70 | 107851 | 234.33 | 1702 | 1655 | 453.2 |
| D | 5 | 254 | 92622 | 200.72 | 1702 | 1655 | 453.2 |
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 |  |