Observation information
- date-obs: 2022-05-20
- time-obs: 03:50:39.737800000
- date-end: 2022-05-20
- time-end: 11:02:41.721400000
- obs_id: A11_080T01_9000005146
- exposure: 8436.5289188
- 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_35914cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35914cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,709,429,760 | 218,949,120 |
Size | 1.6 GB
| 208.8 MB
|
Events in quadrant A | 10,550,164 | 1,420,547 |
Events in quadrant B | 15,223,482 | 1,304,956 |
Events in quadrant C | 10,391,284 | 1,370,043 |
Events in quadrant D | 14,404,622 | 1,305,037 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 81 | 0 |
B | 0 | 81 | 0 |
C | 0 | 81 | 0 |
D | 0 | 81 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 364 | 0 |
B | 0 | 364 | 0 |
C | 0 | 364 | 0 |
D | 0 | 364 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 42401 | 5 |
B | 0 | 56212 | 4 |
C | 0 | 41054 | 4 |
D | 0 | 55190 | 4 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 17851 | 54 | 0.302504% |
B | 17851 | 2220 | 12.436278% |
C | 17851 | 242 | 1.355666% |
D | 17851 | 782 | 4.380707% |
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 | 25922 | 17855 | 20 | 20 | 0.08% | 0.11% | |
B | 25922 | 17854 | 1609 | 1609 | 6.21% | 9.01% | |
C | 25922 | 17855 | 202 | 202 | 0.78% | 1.13% | |
D | 25922 | 17855 | 645 | 645 | 2.49% | 3.61% | |
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 | 1094312 | 2416.24 | 2273 | 2241 | 452.0 |
A | 10 | 83 | 448015 | 986.29 | 2273 | 2241 | 452.0 |
A | 9 | 143 | 187004 | 408.79 | 2273 | 2241 | 452.0 |
B | 5 | 172 | 5462357 | 13946.03 | 2115 | 2071 | 391.5 |
B | 5 | 63 | 997974 | 2543.62 | 2115 | 2071 | 391.5 |
B | 5 | 255 | 248633 | 629.74 | 2115 | 2071 | 391.5 |
C | 15 | 214 | 744296 | 1518.15 | 2147 | 2168 | 488.8 |
C | 0 | 207 | 698973 | 1425.44 | 2147 | 2168 | 488.8 |
C | 0 | 10 | 567010 | 1155.48 | 2147 | 2168 | 488.8 |
D | 12 | 227 | 1828169 | 3492.07 | 2154 | 2104 | 522.9 |
D | 8 | 195 | 1242734 | 2372.52 | 2154 | 2104 | 522.9 |
D | 1 | 52 | 988468 | 1886.27 | 2154 | 2104 | 522.9 |
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 |
|
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Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
|
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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 | |