Observation information
- date-obs: 2022-05-16
- time-obs: 23:46:07.897400000
- date-end: 2022-05-17
- time-end: 02:55:23.889800000
- obs_id: A11_080T01_9000005146
- exposure: 4321.06316648
- 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_35864cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35864cztM0_level2_quad_clean.evt
|
Size (bytes) | 919,198,080 | 98,847,360 |
Size | 876.6 MB
| 94.3 MB
|
Events in quadrant A | 12,191,844 | 580,015 |
Events in quadrant B | 5,217,549 | 613,989 |
Events in quadrant C | 4,585,581 | 622,906 |
Events in quadrant D | 5,274,138 | 590,036 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29 | 0 |
B | 0 | 29 | 0 |
C | 0 | 29 | 0 |
D | 0 | 29 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 174 | 0 |
B | 0 | 174 | 0 |
C | 0 | 174 | 0 |
D | 0 | 174 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 42155 | 3 |
B | 0 | 21062 | 2 |
C | 0 | 18800 | 2 |
D | 0 | 21303 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 8432 | 2279 | 27.027989% |
B | 8432 | 292 | 3.462998% |
C | 8432 | 62 | 0.735294% |
D | 8432 | 301 | 3.569734% |
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 | 11356 | 8434 | 1577 | 1577 | 13.89% | 18.70% | |
B | 11356 | 8434 | 193 | 193 | 1.70% | 2.29% | |
C | 11356 | 8434 | 44 | 44 | 0.39% | 0.52% | |
D | 11356 | 8434 | 216 | 216 | 1.90% | 2.56% | |
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 | 8401255 | 45468.26 | 917 | 900 | 184.8 |
A | 10 | 83 | 198148 | 1067.64 | 917 | 900 | 184.8 |
A | 7 | 48 | 31645 | 166.41 | 917 | 900 | 184.8 |
B | 5 | 172 | 599716 | 3163.52 | 977 | 951 | 189.3 |
B | 5 | 255 | 439352 | 2316.25 | 977 | 951 | 189.3 |
B | 0 | 213 | 192821 | 1013.73 | 977 | 951 | 189.3 |
C | 15 | 214 | 349872 | 1562.45 | 963 | 974 | 223.3 |
C | 15 | 208 | 321987 | 1437.58 | 963 | 974 | 223.3 |
C | 0 | 10 | 87192 | 386.11 | 963 | 974 | 223.3 |
D | 2 | 250 | 489811 | 2111.33 | 950 | 924 | 231.6 |
D | 13 | 249 | 357825 | 1541.33 | 950 | 924 | 231.6 |
D | 8 | 195 | 264781 | 1139.51 | 950 | 924 | 231.6 |
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 | |