Observation information
- date-obs: 2022-05-16
- time-obs: 04:03:55.937300000
- date-end: 2022-05-16
- time-end: 06:00:42.932700000
- obs_id: A11_080T01_9000005146
- exposure: 1636.50101177
- 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_35851cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35851cztM0_level2_quad_clean.evt
|
Size (bytes) | 218,969,280 | 40,020,480 |
Size | 208.8 MB
| 38.2 MB
|
Events in quadrant A | 1,559,143 | 260,040 |
Events in quadrant B | 1,561,649 | 258,935 |
Events in quadrant C | 1,638,105 | 251,758 |
Events in quadrant D | 1,680,799 | 241,327 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17 | 0 |
B | 0 | 18 | 1 |
C | 0 | 17 | 0 |
D | 0 | 17 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 89 | 31 |
B | 0 | 90 | 31 |
C | 0 | 97 | 37 |
D | 0 | 96 | 34 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9904 | 3681 |
B | 0 | 10253 | 3974 |
C | 0 | 9962 | 3518 |
D | 0 | 10815 | 4109 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 2783 | 5 | 0.179662% |
B | 2778 | 18 | 0.647948% |
C | 2824 | 58 | 2.053824% |
D | 2761 | 48 | 1.738501% |
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 | 6569 | 3011 | 0 | 0 | 0.00% | 0.00% | |
B | 7007 | 3003 | 16 | 16 | 0.23% | 0.53% | |
C | 6343 | 3042 | 51 | 51 | 0.80% | 1.68% | |
D | 6426 | 2988 | 48 | 48 | 0.75% | 1.61% | |
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 | 97400 | 1335.38 | 350 | 344 | 72.7 |
A | 10 | 83 | 83709 | 1147.01 | 350 | 344 | 72.7 |
A | 8 | 144 | 12644 | 169.23 | 350 | 344 | 72.7 |
B | 0 | 213 | 81319 | 1198.02 | 345 | 338 | 67.6 |
B | 5 | 172 | 72720 | 1070.81 | 345 | 338 | 67.6 |
B | 4 | 81 | 19548 | 284.19 | 345 | 338 | 67.6 |
C | 15 | 214 | 118800 | 1476.7 | 341 | 345 | 80.2 |
C | 0 | 10 | 100863 | 1253.09 | 341 | 345 | 80.2 |
C | 9 | 69 | 78922 | 979.57 | 341 | 345 | 80.2 |
D | 7 | 223 | 214939 | 2565.54 | 336 | 326 | 83.7 |
D | 8 | 195 | 81379 | 968.93 | 336 | 326 | 83.7 |
D | 13 | 153 | 20808 | 244.85 | 336 | 326 | 83.7 |
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 |
|
|
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 | |