Observation information
- date-obs: 2017-09-17
- time-obs: 23:01:34.542500000
- date-end: 2017-09-18
- time-end: 01:24:04.541500000
- obs_id: A03_097T01_9000001540
- exposure: 4396.87267856
- sourceid: Cygnus X-1
- observer: aarthy
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_097T01_9000001540_10670cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10670cztM0_level2_quad_clean.evt
|
| Size (bytes) | 521,043,840 | 90,293,760 |
| Size | 496.9 MB
| 86.1 MB
|
| Events in quadrant A | 3,252,825 | 571,867 |
| Events in quadrant B | 4,458,150 | 572,076 |
| Events in quadrant C | 3,470,943 | 572,133 |
| Events in quadrant D | 4,133,407 | 540,971 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14475 | 3 |
| B | 0 | 17930 | 2 |
| C | 0 | 14970 | 2 |
| D | 0 | 16838 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6845 | 64 | 0.934989% |
| B | 6845 | 298 | 4.353543% |
| C | 6845 | 101 | 1.475530% |
| D | 6845 | 101 | 1.475530% |
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 | 7580 | 6846 | 13 | 13 | 0.17% | 0.19% |  |
| B | 7580 | 6846 | 156 | 156 | 2.06% | 2.28% |  |
| C | 7580 | 6846 | 48 | 48 | 0.63% | 0.70% |  |
| D | 7580 | 6846 | 49 | 49 | 0.65% | 0.72% |  |
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 | 4 | 2 | 127996 | 782.96 | 794 | 777 | 162.5 |
| A | 15 | 174 | 34309 | 206.37 | 794 | 777 | 162.5 |
| A | 1 | 162 | 14536 | 84.68 | 794 | 777 | 162.5 |
| B | 4 | 239 | 1209220 | 7944.5 | 792 | 772 | 152.1 |
| B | 15 | 185 | 48169 | 311.59 | 792 | 772 | 152.1 |
| B | 0 | 214 | 41224 | 265.94 | 792 | 772 | 152.1 |
| C | 4 | 254 | 420909 | 2328.52 | 773 | 778 | 180.4 |
| C | 4 | 175 | 24448 | 131.19 | 773 | 778 | 180.4 |
| C | 14 | 234 | 8136 | 40.78 | 773 | 778 | 180.4 |
| D | 2 | 16 | 339737 | 1840.06 | 768 | 748 | 184.2 |
| D | 8 | 195 | 331771 | 1796.82 | 768 | 748 | 184.2 |
| D | 10 | 199 | 174389 | 942.54 | 768 | 748 | 184.2 |
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 |  |