Observation information
- date-obs: 2022-05-20
- time-obs: 03:50:38.737800000
- date-end: 2022-05-20
- time-end: 05:48:07.733500000
- obs_id: A11_080T01_9000005146
- exposure: 1466.21269931
- 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_35911cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35911cztM0_level2_quad_clean.evt
|
Size (bytes) | 306,521,280 | 38,162,880 |
Size | 292.3 MB
| 36.4 MB
|
Events in quadrant A | 1,706,680 | 255,965 |
Events in quadrant B | 3,121,092 | 199,381 |
Events in quadrant C | 1,764,478 | 252,884 |
Events in quadrant D | 2,474,222 | 221,888 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19 | 2 |
B | 0 | 19 | 2 |
C | 0 | 19 | 2 |
D | 0 | 18 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 91 | 34 |
B | 0 | 98 | 28 |
C | 0 | 101 | 28 |
D | 0 | 94 | 24 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10370 | 3387 |
B | 0 | 16900 | 5684 |
C | 0 | 10377 | 3254 |
D | 0 | 15801 | 6446 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 3255 | 11 | 0.337942% |
B | 3049 | 628 | 20.596917% |
C | 3309 | 29 | 0.876398% |
D | 2966 | 174 | 5.866487% |
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 | 7024 | 3830 | 2 | 2 | 0.03% | 0.05% | |
B | 7034 | 3683 | 394 | 394 | 5.60% | 10.70% | |
C | 6985 | 3874 | 25 | 25 | 0.36% | 0.65% | |
D | 7014 | 3568 | 95 | 95 | 1.35% | 2.66% | |
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 | 91121 | 1112.36 | 400 | 395 | 81.6 |
A | 9 | 143 | 61323 | 747.01 | 400 | 395 | 81.6 |
A | 13 | 254 | 5278 | 59.87 | 400 | 395 | 81.6 |
B | 5 | 172 | 1325176 | 20299.17 | 338 | 330 | 65.3 |
B | 5 | 63 | 420094 | 6431.59 | 338 | 330 | 65.3 |
B | 5 | 255 | 34687 | 526.41 | 338 | 330 | 65.3 |
C | 15 | 214 | 138914 | 1553.18 | 384 | 387 | 89.2 |
C | 0 | 10 | 121156 | 1354.08 | 384 | 387 | 89.2 |
C | 12 | 251 | 8610 | 92.2 | 384 | 387 | 89.2 |
D | 12 | 227 | 546188 | 6478.19 | 341 | 332 | 84.3 |
D | 13 | 249 | 249988 | 2962.9 | 341 | 332 | 84.3 |
D | 8 | 195 | 213053 | 2524.56 | 341 | 332 | 84.3 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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|
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 | |