Observation information
- date-obs: 2022-05-20
- time-obs: 11:53:21.719000000
- date-end: 2022-05-20
- time-end: 14:30:24.714300000
- obs_id: A11_080T01_9000005146
- exposure: 2630.34828307
- 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_35916cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35916cztM0_level2_quad_clean.evt
|
Size (bytes) | 468,889,920 | 65,528,640 |
Size | 447.2 MB
| 62.5 MB
|
Events in quadrant A | 2,793,996 | 420,132 |
Events in quadrant B | 4,215,119 | 392,496 |
Events in quadrant C | 2,957,358 | 409,813 |
Events in quadrant D | 3,871,890 | 388,068 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 41 | 0 |
B | 0 | 41 | 0 |
C | 0 | 41 | 0 |
D | 0 | 41 | 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 | 11434 | 3 |
B | 0 | 15923 | 2 |
C | 0 | 11658 | 2 |
D | 0 | 15009 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5328 | 15 | 0.281532% |
B | 5328 | 526 | 9.872372% |
C | 5328 | 96 | 1.801802% |
D | 5328 | 195 | 3.659910% |
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 | 9423 | 5330 | 4 | 4 | 0.04% | 0.08% | |
B | 9423 | 5330 | 384 | 384 | 4.08% | 7.20% | |
C | 9423 | 5330 | 66 | 66 | 0.70% | 1.24% | |
D | 9423 | 5330 | 121 | 121 | 1.28% | 2.27% | |
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 | 169546 | 1297.02 | 649 | 638 | 130.2 |
A | 15 | 169 | 74489 | 567.09 | 649 | 638 | 130.2 |
A | 9 | 143 | 25043 | 187.4 | 649 | 638 | 130.2 |
B | 5 | 172 | 1516156 | 13026.76 | 612 | 599 | 116.3 |
B | 5 | 63 | 138416 | 1184.59 | 612 | 599 | 116.3 |
B | 0 | 213 | 39191 | 331.71 | 612 | 599 | 116.3 |
C | 0 | 10 | 289651 | 2003.08 | 624 | 628 | 144.3 |
C | 15 | 214 | 223894 | 1547.35 | 624 | 628 | 144.3 |
C | 10 | 49 | 8853 | 57.0 | 624 | 628 | 144.3 |
D | 8 | 195 | 337036 | 2209.58 | 618 | 602 | 152.3 |
D | 7 | 223 | 301269 | 1974.68 | 618 | 602 | 152.3 |
D | 13 | 249 | 204553 | 1339.48 | 618 | 602 | 152.3 |
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 | |