Observation information
- date-obs: 2022-05-16
- time-obs: 02:15:21.942800000
- date-end: 2022-05-16
- time-end: 04:18:55.937400000
- obs_id: A11_080T01_9000005146
- exposure: 3657.70738561
- 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_35850cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35850cztM0_level2_quad_clean.evt
|
Size (bytes) | 431,193,600 | 81,622,080 |
Size | 411.2 MB
| 77.8 MB
|
Events in quadrant A | 3,147,065 | 526,480 |
Events in quadrant B | 3,219,761 | 526,111 |
Events in quadrant C | 3,001,006 | 518,837 |
Events in quadrant D | 3,299,579 | 497,602 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16 | 0 |
B | 0 | 16 | 0 |
C | 0 | 16 | 0 |
D | 0 | 17 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 118 | 0 |
B | 0 | 118 | 0 |
C | 0 | 118 | 0 |
D | 0 | 118 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12854 | 3 |
B | 0 | 13317 | 2 |
C | 0 | 12430 | 2 |
D | 0 | 13605 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5756 | 6 | 0.104239% |
B | 5756 | 103 | 1.789437% |
C | 5756 | 74 | 1.285615% |
D | 5756 | 107 | 1.858930% |
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 | 7339 | 5757 | 0 | 0 | 0.00% | 0.00% | |
B | 7339 | 5757 | 78 | 78 | 1.06% | 1.35% | |
C | 7339 | 5757 | 58 | 58 | 0.79% | 1.01% | |
D | 7339 | 5757 | 97 | 97 | 1.32% | 1.68% | |
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 | 363239 | 2662.4 | 673 | 661 | 136.2 |
A | 10 | 83 | 169616 | 1240.63 | 673 | 661 | 136.2 |
A | 13 | 6 | 10996 | 75.89 | 673 | 661 | 136.2 |
B | 5 | 172 | 366886 | 2870.38 | 663 | 647 | 127.6 |
B | 0 | 213 | 182584 | 1425.92 | 663 | 647 | 127.6 |
B | 0 | 189 | 22867 | 174.15 | 663 | 647 | 127.6 |
C | 15 | 214 | 244001 | 1619.18 | 647 | 656 | 150.3 |
C | 0 | 10 | 231379 | 1535.2 | 647 | 656 | 150.3 |
C | 13 | 61 | 4390 | 24.85 | 647 | 656 | 150.3 |
D | 7 | 223 | 378223 | 2361.52 | 646 | 628 | 159.9 |
D | 13 | 249 | 142162 | 885.17 | 646 | 628 | 159.9 |
D | 8 | 195 | 106421 | 661.64 | 646 | 628 | 159.9 |
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 | |