Observation information
- date-obs: 2022-05-18
- time-obs: 04:30:21.834600000
- date-end: 2022-05-18
- time-end: 06:10:21.829800000
- obs_id: A11_080T01_9000005146
- exposure: 1961.51048337
- 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_35882cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35882cztM0_level2_quad_clean.evt
|
Size (bytes) | 377,112,960 | 49,420,800 |
Size | 359.6 MB
| 47.1 MB
|
Events in quadrant A | 2,141,036 | 336,310 |
Events in quadrant B | 4,260,739 | 251,016 |
Events in quadrant C | 2,141,977 | 319,722 |
Events in quadrant D | 2,603,427 | 305,450 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 2 |
B | 0 | 14 | 3 |
C | 0 | 15 | 5 |
D | 0 | 15 | 4 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 87 | 0 |
B | 0 | 87 | 2 |
C | 0 | 88 | 1 |
D | 0 | 89 | 4 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9301 | 564 |
B | 0 | 18723 | 3620 |
C | 0 | 9327 | 621 |
D | 0 | 11270 | 956 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4102 | 3 | 0.073135% |
B | 3806 | 1090 | 28.638991% |
C | 4071 | 47 | 1.154507% |
D | 4023 | 115 | 2.858563% |
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 | 4417 | 4311 | 0 | 0 | 0.00% | 0.00% | |
B | 4412 | 4165 | 804 | 804 | 18.22% | 19.30% | |
C | 4417 | 4285 | 28 | 28 | 0.63% | 0.65% | |
D | 4417 | 4276 | 68 | 68 | 1.54% | 1.59% | |
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 | 98917 | 959.49 | 504 | 493 | 102.6 |
A | 15 | 169 | 91124 | 883.52 | 504 | 493 | 102.6 |
A | 13 | 254 | 6723 | 60.73 | 504 | 493 | 102.6 |
B | 5 | 63 | 2609269 | 36017.48 | 373 | 364 | 72.4 |
B | 5 | 172 | 99204 | 1364.54 | 373 | 364 | 72.4 |
B | 0 | 213 | 44320 | 606.84 | 373 | 364 | 72.4 |
C | 15 | 214 | 166981 | 1510.08 | 472 | 477 | 110.3 |
C | 0 | 10 | 122433 | 1106.06 | 472 | 477 | 110.3 |
C | 1 | 23 | 9108 | 78.28 | 472 | 477 | 110.3 |
D | 7 | 223 | 191117 | 1637.27 | 469 | 456 | 116.5 |
D | 10 | 118 | 168765 | 1445.32 | 469 | 456 | 116.5 |
D | 13 | 13 | 107787 | 921.69 | 469 | 456 | 116.5 |
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 |
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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 | |