Observation information
- date-obs: 2022-05-17
- time-obs: 05:52:01.880600000
- date-end: 2022-05-17
- time-end: 08:06:37.875100000
- obs_id: A11_080T01_9000005146
- exposure: 2904.33737849
- 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_35868cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35868cztM0_level2_quad_clean.evt
|
Size (bytes) | 683,910,720 | 74,217,600 |
Size | 652.2 MB
| 70.8 MB
|
Events in quadrant A | 7,874,794 | 484,935 |
Events in quadrant B | 2,782,133 | 517,820 |
Events in quadrant C | 3,995,485 | 476,554 |
Events in quadrant D | 5,712,494 | 406,559 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28 | 0 |
B | 0 | 28 | 0 |
C | 0 | 28 | 0 |
D | 0 | 29 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 106 | 0 |
D | 0 | 106 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27218 | 128 |
B | 0 | 11255 | 32 |
C | 0 | 14937 | 17 |
D | 0 | 20500 | 117 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5137 | 1327 | 25.832198% |
B | 5149 | 43 | 0.835114% |
C | 5157 | 364 | 7.058367% |
D | 5139 | 1300 | 25.296750% |
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 | 7081 | 5160 | 1027 | 1027 | 14.50% | 19.90% | |
B | 7081 | 5162 | 23 | 23 | 0.32% | 0.45% | |
C | 7081 | 5165 | 347 | 347 | 4.90% | 6.72% | |
D | 7081 | 5162 | 1045 | 1045 | 14.76% | 20.24% | |
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 | 15 | 169 | 5125514 | 40899.29 | 627 | 619 | 125.3 |
A | 7 | 48 | 152113 | 1209.0 | 627 | 619 | 125.3 |
A | 10 | 83 | 151294 | 1202.46 | 627 | 619 | 125.3 |
B | 5 | 172 | 153600 | 1249.88 | 648 | 635 | 122.4 |
B | 5 | 255 | 28199 | 225.23 | 648 | 635 | 122.4 |
B | 12 | 111 | 14520 | 113.45 | 648 | 635 | 122.4 |
C | 1 | 23 | 1164665 | 8165.06 | 611 | 616 | 142.6 |
C | 15 | 214 | 212560 | 1486.65 | 611 | 616 | 142.6 |
C | 0 | 10 | 210390 | 1471.43 | 611 | 616 | 142.6 |
D | 2 | 250 | 2588756 | 19238.28 | 547 | 534 | 134.5 |
D | 13 | 249 | 394062 | 2925.1 | 547 | 534 | 134.5 |
D | 7 | 223 | 233500 | 1731.64 | 547 | 534 | 134.5 |
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 | |