Observation information
- date-obs: 2022-05-16
- time-obs: 15:57:01.911000000
- date-end: 2022-05-16
- time-end: 18:10:07.906800000
- obs_id: A11_080T01_9000005146
- exposure: 4114.4246767
- 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_35859cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35859cztM0_level2_quad_clean.evt
|
Size (bytes) | 452,689,920 | 93,528,000 |
Size | 431.7 MB
| 89.2 MB
|
Events in quadrant A | 3,892,162 | 628,503 |
Events in quadrant B | 2,994,370 | 626,137 |
Events in quadrant C | 2,900,591 | 619,124 |
Events in quadrant D | 3,556,028 | 580,587 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26 | 0 |
B | 0 | 26 | 0 |
C | 0 | 26 | 0 |
D | 0 | 27 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108 | 0 |
B | 0 | 108 | 0 |
C | 0 | 108 | 0 |
D | 0 | 108 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14992 | 3 |
B | 0 | 12126 | 2 |
C | 0 | 11556 | 2 |
D | 0 | 14074 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5408 | 259 | 4.789201% |
B | 5408 | 73 | 1.349852% |
C | 5408 | 72 | 1.331361% |
D | 5408 | 215 | 3.975592% |
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 | 7051 | 5409 | 205 | 205 | 2.91% | 3.79% | |
B | 7051 | 5409 | 48 | 48 | 0.68% | 0.89% | |
C | 7051 | 5409 | 53 | 53 | 0.75% | 0.98% | |
D | 7051 | 5409 | 175 | 175 | 2.48% | 3.24% | |
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 | 1201129 | 8988.67 | 647 | 636 | 133.6 |
A | 10 | 83 | 158798 | 1184.23 | 647 | 636 | 133.6 |
A | 7 | 48 | 10976 | 77.42 | 647 | 636 | 133.6 |
B | 5 | 172 | 331490 | 2624.96 | 650 | 636 | 126.0 |
B | 0 | 213 | 54041 | 423.71 | 650 | 636 | 126.0 |
B | 5 | 255 | 17071 | 130.39 | 650 | 636 | 126.0 |
C | 15 | 214 | 225601 | 1510.48 | 637 | 645 | 148.9 |
C | 0 | 10 | 173758 | 1162.38 | 637 | 645 | 148.9 |
C | 1 | 23 | 9134 | 57.0 | 637 | 645 | 148.9 |
D | 13 | 153 | 265534 | 1697.81 | 630 | 614 | 156.0 |
D | 2 | 153 | 256751 | 1641.52 | 630 | 614 | 156.0 |
D | 13 | 249 | 193936 | 1238.95 | 630 | 614 | 156.0 |
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 | |