Observation information
- date-obs: 2017-09-17
- time-obs: 21:21:34.542900000
- date-end: 2017-09-17
- time-end: 23:40:32.542000000
- obs_id: A03_097T01_9000001540
- exposure: 4300.56807394
- 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_10669cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10669cztM0_level2_quad_clean.evt
|
| Size (bytes) | 536,016,960 | 90,599,040 |
| Size | 511.2 MB
| 86.4 MB
|
| Events in quadrant A | 2,985,620 | 584,817 |
| Events in quadrant B | 4,544,240 | 581,557 |
| Events in quadrant C | 3,762,769 | 586,344 |
| Events in quadrant D | 4,499,753 | 537,201 |
Level1 data integrity
| 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 | 13404 | 3 |
| B | 0 | 17898 | 2 |
| C | 0 | 15563 | 2 |
| D | 0 | 17661 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6503 | 35 | 0.538213% |
| B | 6503 | 322 | 4.951561% |
| C | 6503 | 160 | 2.460403% |
| D | 6503 | 232 | 3.567584% |
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 | 7593 | 6504 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7593 | 6504 | 208 | 208 | 2.74% | 3.20% |  |
| C | 7593 | 6504 | 132 | 132 | 1.74% | 2.03% |  |
| D | 7593 | 6504 | 178 | 178 | 2.34% | 2.74% |  |
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 | 1 | 162 | 14604 | 88.11 | 769 | 754 | 157.2 |
| A | 0 | 226 | 7049 | 40.05 | 769 | 754 | 157.2 |
| A | 12 | 194 | 6059 | 33.75 | 769 | 754 | 157.2 |
| B | 4 | 239 | 1327532 | 9171.06 | 766 | 748 | 144.7 |
| B | 0 | 214 | 83597 | 572.67 | 766 | 748 | 144.7 |
| B | 15 | 185 | 48420 | 329.52 | 766 | 748 | 144.7 |
| C | 4 | 254 | 806836 | 4683.04 | 749 | 755 | 172.1 |
| C | 4 | 175 | 24832 | 139.88 | 749 | 755 | 172.1 |
| C | 13 | 61 | 5728 | 28.89 | 749 | 755 | 172.1 |
| D | 14 | 34 | 405120 | 2293.41 | 732 | 713 | 176.3 |
| D | 8 | 195 | 362240 | 2050.23 | 732 | 713 | 176.3 |
| D | 2 | 16 | 323701 | 1831.68 | 732 | 713 | 176.3 |
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 |  |