Observation information
- date-obs: 2022-05-21
- time-obs: 02:02:01.695000000
- date-end: 2022-05-21
- time-end: 04:27:10.689200000
- obs_id: A11_080T01_9000005146
- exposure: 3397.41116992
- 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_35925cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35925cztM0_level2_quad_clean.evt
|
Size (bytes) | 421,058,880 | 79,649,280 |
Size | 401.6 MB
| 76.0 MB
|
Events in quadrant A | 2,795,359 | 520,363 |
Events in quadrant B | 3,243,230 | 517,280 |
Events in quadrant C | 3,095,840 | 502,975 |
Events in quadrant D | 3,243,283 | 486,197 |
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 | 33 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 112 | 0 |
B | 0 | 112 | 0 |
C | 0 | 112 | 0 |
D | 0 | 112 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11709 | 3 |
B | 0 | 13144 | 2 |
C | 0 | 12426 | 2 |
D | 0 | 13338 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5502 | 20 | 0.363504% |
B | 5502 | 171 | 3.107961% |
C | 5502 | 122 | 2.217375% |
D | 5502 | 65 | 1.181389% |
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 | 7294 | 5503 | 14 | 14 | 0.19% | 0.25% | |
B | 7294 | 5503 | 106 | 106 | 1.45% | 1.93% | |
C | 7294 | 5503 | 92 | 92 | 1.26% | 1.67% | |
D | 7294 | 5503 | 43 | 43 | 0.59% | 0.78% | |
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 | 166718 | 1270.61 | 650 | 641 | 130.7 |
A | 9 | 143 | 98404 | 747.96 | 650 | 641 | 130.7 |
A | 13 | 254 | 9449 | 67.39 | 650 | 641 | 130.7 |
B | 5 | 172 | 632562 | 5213.13 | 638 | 624 | 121.2 |
B | 5 | 255 | 30893 | 249.7 | 638 | 624 | 121.2 |
B | 0 | 213 | 27911 | 225.1 | 638 | 624 | 121.2 |
C | 0 | 10 | 322359 | 2234.9 | 620 | 625 | 144.0 |
C | 15 | 214 | 231261 | 1602.09 | 620 | 625 | 144.0 |
C | 0 | 207 | 124196 | 858.37 | 620 | 625 | 144.0 |
D | 1 | 52 | 233713 | 1527.64 | 623 | 608 | 152.6 |
D | 2 | 250 | 207132 | 1353.44 | 623 | 608 | 152.6 |
D | 8 | 195 | 165725 | 1082.09 | 623 | 608 | 152.6 |
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 | |