Observation information
- date-obs: 2022-05-22
- time-obs: 00:42:01.652700000
- date-end: 2022-05-22
- time-end: 03:03:09.647200000
- obs_id: A11_080T01_9000005146
- exposure: 3255.77273846
- 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_35938cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35938cztM0_level2_quad_clean.evt
|
Size (bytes) | 446,166,720 | 74,842,560 |
Size | 425.5 MB
| 71.4 MB
|
Events in quadrant A | 2,645,094 | 493,199 |
Events in quadrant B | 4,336,809 | 452,572 |
Events in quadrant C | 2,960,117 | 481,235 |
Events in quadrant D | 3,202,457 | 460,200 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30 | 0 |
B | 0 | 30 | 0 |
C | 0 | 30 | 0 |
D | 0 | 31 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 110 | 0 |
B | 0 | 110 | 0 |
C | 0 | 110 | 0 |
D | 0 | 110 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11301 | 3 |
B | 0 | 16359 | 2 |
C | 0 | 12113 | 2 |
D | 0 | 13162 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5412 | 9 | 0.166297% |
B | 5412 | 653 | 12.065780% |
C | 5412 | 92 | 1.699926% |
D | 5412 | 71 | 1.311899% |
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 | 7144 | 5413 | 4 | 4 | 0.06% | 0.07% | |
B | 7144 | 5413 | 522 | 522 | 7.31% | 9.64% | |
C | 7144 | 5413 | 72 | 72 | 1.01% | 1.33% | |
D | 7144 | 5413 | 47 | 47 | 0.66% | 0.87% | |
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 | 166839 | 1283.67 | 632 | 622 | 129.5 |
A | 8 | 144 | 17818 | 132.8 | 632 | 622 | 129.5 |
A | 7 | 3 | 8746 | 62.74 | 632 | 622 | 129.5 |
B | 5 | 172 | 1850154 | 16254.39 | 591 | 576 | 113.8 |
B | 4 | 171 | 74820 | 652.47 | 591 | 576 | 113.8 |
B | 5 | 255 | 26340 | 226.42 | 591 | 576 | 113.8 |
C | 15 | 214 | 227031 | 1592.58 | 607 | 612 | 142.2 |
C | 0 | 207 | 205949 | 1444.3 | 607 | 612 | 142.2 |
C | 0 | 10 | 154855 | 1084.91 | 607 | 612 | 142.2 |
D | 8 | 195 | 474107 | 3222.47 | 604 | 590 | 146.9 |
D | 13 | 249 | 172793 | 1171.91 | 604 | 590 | 146.9 |
D | 1 | 52 | 75252 | 508.1 | 604 | 590 | 146.9 |
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 | |