Observation information
- date-obs: 2022-05-19
- time-obs: 13:15:55.764500000
- date-end: 2022-05-19
- time-end: 15:50:55.759500000
- obs_id: A11_080T01_9000005146
- exposure: 3062.39538562
- 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_35902cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35902cztM0_level2_quad_clean.evt
|
Size (bytes) | 477,967,680 | 73,445,760 |
Size | 455.8 MB
| 70.0 MB
|
Events in quadrant A | 3,077,789 | 485,783 |
Events in quadrant B | 3,101,128 | 472,384 |
Events in quadrant C | 3,025,869 | 472,679 |
Events in quadrant D | 4,900,568 | 411,560 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 38 | 0 |
B | 0 | 38 | 0 |
C | 0 | 38 | 0 |
D | 0 | 38 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 114 | 0 |
B | 0 | 114 | 0 |
C | 0 | 114 | 0 |
D | 0 | 114 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12351 | 3 |
B | 0 | 12449 | 2 |
C | 0 | 11941 | 2 |
D | 0 | 18025 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5445 | 12 | 0.220386% |
B | 5445 | 135 | 2.479339% |
C | 5445 | 112 | 2.056933% |
D | 5445 | 704 | 12.929293% |
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 | 9300 | 5447 | 0 | 0 | 0.00% | 0.00% | |
B | 9300 | 5447 | 96 | 96 | 1.03% | 1.76% | |
C | 9300 | 5447 | 81 | 81 | 0.87% | 1.49% | |
D | 9300 | 5447 | 630 | 630 | 6.77% | 11.57% | |
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 | 328706 | 2446.57 | 663 | 653 | 134.1 |
A | 10 | 83 | 169184 | 1256.88 | 663 | 653 | 134.1 |
A | 10 | 255 | 9653 | 67.12 | 663 | 653 | 134.1 |
B | 5 | 255 | 313271 | 2528.85 | 647 | 632 | 123.6 |
B | 5 | 172 | 142743 | 1149.5 | 647 | 632 | 123.6 |
B | 0 | 213 | 38156 | 303.52 | 647 | 632 | 123.6 |
C | 0 | 10 | 251064 | 1695.68 | 634 | 641 | 147.7 |
C | 15 | 214 | 228823 | 1545.08 | 634 | 641 | 147.7 |
C | 9 | 69 | 72044 | 483.49 | 634 | 641 | 147.7 |
D | 13 | 153 | 1196833 | 8057.07 | 602 | 586 | 148.5 |
D | 12 | 128 | 356670 | 2398.33 | 602 | 586 | 148.5 |
D | 8 | 195 | 249011 | 1673.21 | 602 | 586 | 148.5 |
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 | |