Observation information
- date-obs: 2022-05-15
- time-obs: 10:30:21.972200000
- date-end: 2022-05-15
- time-end: 12:37:29.967800000
- obs_id: A11_080T01_9000005146
- exposure: 2014.23596764
- 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_35841cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35841cztM0_level2_quad_clean.evt
|
Size (bytes) | 507,839,040 | 56,160,000 |
Size | 484.3 MB
| 53.6 MB
|
Events in quadrant A | 4,272,563 | 336,686 |
Events in quadrant B | 3,219,510 | 352,339 |
Events in quadrant C | 3,752,851 | 330,987 |
Events in quadrant D | 3,787,037 | 320,087 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24 | 0 |
B | 0 | 24 | 0 |
C | 0 | 24 | 0 |
D | 0 | 25 | 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 | 16067 | 3 |
B | 0 | 12737 | 2 |
C | 0 | 14125 | 2 |
D | 0 | 14373 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5132 | 412 | 8.028059% |
B | 5132 | 54 | 1.052221% |
C | 5132 | 351 | 6.839439% |
D | 5132 | 272 | 5.300078% |
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 | 7254 | 5133 | 401 | 401 | 5.53% | 7.81% | |
B | 7254 | 5133 | 25 | 25 | 0.34% | 0.49% | |
C | 7254 | 5133 | 315 | 315 | 4.34% | 6.14% | |
D | 7254 | 5133 | 277 | 277 | 3.82% | 5.40% | |
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 | 1478564 | 10881.0 | 680 | 670 | 135.8 |
A | 10 | 83 | 153294 | 1123.69 | 680 | 670 | 135.8 |
A | 13 | 6 | 12178 | 84.72 | 680 | 670 | 135.8 |
B | 0 | 213 | 267628 | 2088.82 | 682 | 669 | 127.8 |
B | 5 | 172 | 103995 | 808.47 | 682 | 669 | 127.8 |
B | 0 | 214 | 55863 | 431.87 | 682 | 669 | 127.8 |
C | 0 | 10 | 571568 | 3919.24 | 638 | 646 | 145.7 |
C | 15 | 208 | 474525 | 3253.06 | 638 | 646 | 145.7 |
C | 15 | 214 | 208907 | 1429.66 | 638 | 646 | 145.7 |
D | 7 | 223 | 463322 | 2889.03 | 661 | 646 | 160.1 |
D | 13 | 249 | 229284 | 1427.66 | 661 | 646 | 160.1 |
D | 2 | 250 | 224713 | 1399.11 | 661 | 646 | 160.1 |
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 | |