Observation information
- date-obs: 2022-05-23
- time-obs: 10:00:21.590900000
- date-end: 2022-05-23
- time-end: 12:08:44.586700000
- obs_id: A11_080T01_9000005146
- exposure: 1851.57388721
- 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_35959cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35959cztM0_level2_quad_clean.evt
|
Size (bytes) | 763,116,480 | 48,902,400 |
Size | 727.8 MB
| 46.6 MB
|
Events in quadrant A | 3,224,670 | 334,046 |
Events in quadrant B | 11,944,519 | 152,788 |
Events in quadrant C | 3,874,373 | 324,190 |
Events in quadrant D | 3,721,503 | 309,515 |
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 | 26 | 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 | 12698 | 3 |
B | 0 | 38949 | 2 |
C | 0 | 14848 | 2 |
D | 0 | 14349 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5114 | 91 | 1.779429% |
B | 5114 | 4637 | 90.672663% |
C | 5114 | 129 | 2.522487% |
D | 5114 | 180 | 3.519750% |
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 | 7177 | 5115 | 54 | 54 | 0.75% | 1.06% | |
B | 7176 | 5114 | 4243 | 4243 | 59.13% | 82.97% | |
C | 7177 | 5115 | 110 | 110 | 1.53% | 2.15% | |
D | 7177 | 5115 | 141 | 141 | 1.96% | 2.76% | |
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 | 605133 | 4802.25 | 631 | 620 | 125.9 |
A | 10 | 83 | 166065 | 1314.29 | 631 | 620 | 125.9 |
A | 13 | 6 | 9298 | 68.93 | 631 | 620 | 125.9 |
B | 5 | 31 | 3216252 | 48490.37 | 347 | 340 | 66.3 |
B | 5 | 15 | 3182881 | 47987.19 | 347 | 340 | 66.3 |
B | 5 | 14 | 2525042 | 38068.12 | 347 | 340 | 66.3 |
C | 9 | 187 | 1054175 | 7619.4 | 601 | 607 | 138.3 |
C | 15 | 214 | 215358 | 1553.08 | 601 | 607 | 138.3 |
C | 0 | 10 | 157448 | 1134.27 | 601 | 607 | 138.3 |
D | 2 | 249 | 338084 | 2327.78 | 602 | 587 | 145.0 |
D | 8 | 195 | 274141 | 1886.75 | 602 | 587 | 145.0 |
D | 7 | 223 | 251852 | 1733.02 | 602 | 587 | 145.0 |
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 |
|
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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 | |