Observation information
- date-obs: 2022-05-21
- time-obs: 00:14:59.699000000
- date-end: 2022-05-21
- time-end: 02:40:13.694500000
- obs_id: A11_080T01_9000005146
- exposure: 3396.64471328
- 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_35923cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35923cztM0_level2_quad_clean.evt
|
Size (bytes) | 413,870,400 | 76,550,400 |
Size | 394.7 MB
| 73.0 MB
|
Events in quadrant A | 2,784,914 | 494,688 |
Events in quadrant B | 3,124,592 | 484,762 |
Events in quadrant C | 3,055,930 | 485,440 |
Events in quadrant D | 3,191,579 | 465,116 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 32 | 0 |
B | 0 | 32 | 0 |
C | 0 | 32 | 0 |
D | 0 | 32 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 114 | 0 |
B | 0 | 114 | 0 |
C | 0 | 114 | 0 |
D | 0 | 114 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11812 | 3 |
B | 0 | 12856 | 2 |
C | 0 | 12422 | 2 |
D | 0 | 13250 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5549 | 18 | 0.324383% |
B | 5549 | 186 | 3.351955% |
C | 5549 | 105 | 1.892233% |
D | 5549 | 110 | 1.982339% |
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 | 8714 | 5551 | 10 | 10 | 0.11% | 0.18% | |
B | 8714 | 5551 | 115 | 115 | 1.32% | 2.07% | |
C | 8714 | 5551 | 76 | 76 | 0.87% | 1.37% | |
D | 8714 | 5551 | 77 | 77 | 0.88% | 1.39% | |
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 | 10 | 83 | 169213 | 1283.3 | 643 | 634 | 131.4 |
A | 9 | 143 | 100527 | 760.43 | 643 | 634 | 131.4 |
A | 15 | 169 | 13091 | 94.83 | 643 | 634 | 131.4 |
B | 5 | 172 | 552475 | 4569.35 | 630 | 617 | 120.8 |
B | 5 | 255 | 24771 | 199.99 | 630 | 617 | 120.8 |
B | 0 | 244 | 23005 | 185.37 | 630 | 617 | 120.8 |
C | 0 | 10 | 285180 | 1951.71 | 618 | 623 | 145.8 |
C | 15 | 214 | 233496 | 1597.22 | 618 | 623 | 145.8 |
C | 0 | 207 | 127106 | 867.52 | 618 | 623 | 145.8 |
D | 10 | 118 | 190283 | 1265.19 | 615 | 600 | 149.9 |
D | 8 | 195 | 160832 | 1068.75 | 615 | 600 | 149.9 |
D | 6 | 112 | 103703 | 687.7 | 615 | 600 | 149.9 |
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 | |