Observation information
- date-obs: 2022-05-17
- time-obs: 19:36:03.853400000
- date-end: 2022-05-17
- time-end: 22:06:13.849200000
- obs_id: A11_080T01_9000005146
- exposure: 4689.71746944
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_080T01_9000005146_35876cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35876cztM0_level2_quad_clean.evt
|
| Size (bytes) | 522,947,520 | 102,551,040 |
| Size | 498.7 MB
| 97.8 MB
|
| Events in quadrant A | 4,028,706 | 676,353 |
| Events in quadrant B | 3,729,774 | 676,752 |
| Events in quadrant C | 3,515,373 | 666,948 |
| Events in quadrant D | 4,128,824 | 638,146 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25 | 0 |
| B | 0 | 25 | 0 |
| C | 0 | 25 | 0 |
| D | 0 | 25 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16127 | 15 |
| B | 0 | 15093 | 13 |
| C | 0 | 14169 | 6 |
| D | 0 | 16667 | 11 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6408 | 86 | 1.342072% |
| B | 6408 | 131 | 2.044320% |
| C | 6411 | 79 | 1.232257% |
| D | 6412 | 75 | 1.169682% |
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 | 9010 | 6414 | 67 | 67 | 0.74% | 1.04% |  |
| B | 9010 | 6414 | 70 | 70 | 0.78% | 1.09% |  |
| C | 9010 | 6415 | 60 | 60 | 0.67% | 0.94% |  |
| D | 9010 | 6416 | 53 | 53 | 0.59% | 0.83% |  |
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 | 7 | 48 | 483490 | 3105.62 | 764 | 751 | 155.4 |
| A | 15 | 169 | 359534 | 2308.17 | 764 | 751 | 155.4 |
| A | 10 | 83 | 174847 | 1120.02 | 764 | 751 | 155.4 |
| B | 5 | 172 | 471343 | 3254.08 | 754 | 737 | 144.6 |
| B | 5 | 255 | 151547 | 1042.8 | 754 | 737 | 144.6 |
| B | 0 | 213 | 60609 | 413.99 | 754 | 737 | 144.6 |
| C | 15 | 214 | 266043 | 1538.92 | 740 | 749 | 172.4 |
| C | 0 | 10 | 212247 | 1226.86 | 740 | 749 | 172.4 |
| C | 9 | 69 | 76964 | 442.11 | 740 | 749 | 172.4 |
| D | 8 | 195 | 712801 | 3917.21 | 739 | 720 | 181.8 |
| D | 13 | 249 | 180680 | 989.97 | 739 | 720 | 181.8 |
| D | 2 | 250 | 177651 | 973.31 | 739 | 720 | 181.8 |
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 |  |