Observation information
- date-obs: 2022-05-20
- time-obs: 17:16:11.710500000
- date-end: 2022-05-20
- time-end: 19:44:23.706900000
- obs_id: A11_080T01_9000005146
- exposure: 4667.40167563
- 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_35919cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35919cztM0_level2_quad_clean.evt
|
Size (bytes) | 583,344,000 | 103,443,840 |
Size | 556.3 MB
| 98.7 MB
|
Events in quadrant A | 4,465,820 | 695,310 |
Events in quadrant B | 4,160,566 | 679,181 |
Events in quadrant C | 3,514,085 | 688,968 |
Events in quadrant D | 5,101,916 | 631,659 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26 | 0 |
B | 0 | 26 | 0 |
C | 0 | 26 | 0 |
D | 0 | 26 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17289 | 3 |
B | 0 | 16295 | 2 |
C | 0 | 13996 | 2 |
D | 0 | 19383 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6264 | 251 | 4.007024% |
B | 6264 | 376 | 6.002554% |
C | 6264 | 98 | 1.564496% |
D | 6264 | 446 | 7.120051% |
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 | 8892 | 6265 | 175 | 175 | 1.97% | 2.79% | |
B | 8892 | 6266 | 251 | 251 | 2.82% | 4.01% | |
C | 8892 | 6266 | 72 | 72 | 0.81% | 1.15% | |
D | 8892 | 6266 | 371 | 371 | 4.17% | 5.92% | |
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 | 1292627 | 8423.53 | 743 | 732 | 153.4 |
A | 10 | 83 | 180059 | 1169.26 | 743 | 732 | 153.4 |
A | 9 | 143 | 104839 | 678.81 | 743 | 732 | 153.4 |
B | 5 | 172 | 1192192 | 8419.35 | 725 | 709 | 141.5 |
B | 5 | 255 | 66100 | 462.07 | 725 | 709 | 141.5 |
B | 0 | 213 | 23269 | 159.42 | 725 | 709 | 141.5 |
C | 0 | 10 | 279580 | 1643.25 | 724 | 731 | 169.7 |
C | 15 | 214 | 262512 | 1542.67 | 724 | 731 | 169.7 |
C | 0 | 207 | 132437 | 776.14 | 724 | 731 | 169.7 |
D | 2 | 250 | 725838 | 4171.76 | 708 | 693 | 173.8 |
D | 12 | 6 | 414283 | 2379.38 | 708 | 693 | 173.8 |
D | 8 | 195 | 354959 | 2038.09 | 708 | 693 | 173.8 |
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 | |