Observation information
- date-obs: 2022-05-22
- time-obs: 07:48:41.637000000
- date-end: 2022-05-22
- time-end: 09:57:42.632800000
- obs_id: A11_080T01_9000005146
- exposure: 2310.43202095
- 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_35943cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35943cztM0_level2_quad_clean.evt
|
Size (bytes) | 432,434,880 | 62,130,240 |
Size | 412.4 MB
| 59.3 MB
|
Events in quadrant A | 2,618,532 | 405,529 |
Events in quadrant B | 4,372,192 | 380,314 |
Events in quadrant C | 2,863,001 | 381,191 |
Events in quadrant D | 2,915,148 | 375,801 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28 | 0 |
B | 0 | 28 | 0 |
C | 0 | 28 | 0 |
D | 0 | 29 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 100 | 0 |
B | 0 | 100 | 0 |
C | 0 | 100 | 0 |
D | 0 | 100 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10430 | 3 |
B | 0 | 16059 | 2 |
C | 0 | 11128 | 2 |
D | 0 | 11495 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4814 | 6 | 0.124636% |
B | 4814 | 677 | 14.063149% |
C | 4814 | 109 | 2.264229% |
D | 4814 | 74 | 1.537183% |
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 | 6966 | 4815 | 0 | 0 | 0.00% | 0.00% | |
B | 6966 | 4815 | 439 | 439 | 6.30% | 9.12% | |
C | 6966 | 4815 | 83 | 83 | 1.19% | 1.72% | |
D | 6966 | 4815 | 50 | 50 | 0.72% | 1.04% | |
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 | 161210 | 1269.07 | 629 | 618 | 126.5 |
A | 15 | 169 | 15516 | 117.73 | 629 | 618 | 126.5 |
A | 13 | 254 | 8098 | 59.11 | 629 | 618 | 126.5 |
B | 5 | 172 | 1578062 | 14374.84 | 582 | 571 | 109.7 |
B | 0 | 213 | 240388 | 2185.33 | 582 | 571 | 109.7 |
B | 4 | 171 | 192588 | 1749.75 | 582 | 571 | 109.7 |
C | 0 | 10 | 341578 | 2545.18 | 588 | 595 | 134.0 |
C | 15 | 214 | 203038 | 1511.08 | 588 | 595 | 134.0 |
C | 14 | 128 | 13575 | 96.89 | 588 | 595 | 134.0 |
D | 8 | 195 | 136094 | 931.17 | 600 | 585 | 145.5 |
D | 13 | 249 | 133778 | 915.25 | 600 | 585 | 145.5 |
D | 2 | 250 | 99238 | 677.91 | 600 | 585 | 145.5 |
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 |
|
|
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 | |