Observation information
- date-obs: 2022-05-23
- time-obs: 13:13:41.585100000
- date-end: 2022-05-23
- time-end: 15:36:09.581000000
- obs_id: A11_080T01_9000005146
- exposure: 2925.11316384
- 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_35961cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35961cztM0_level2_quad_clean.evt
|
Size (bytes) | 841,659,840 | 69,050,880 |
Size | 802.7 MB
| 65.9 MB
|
Events in quadrant A | 3,332,280 | 515,246 |
Events in quadrant B | 13,890,172 | 213,868 |
Events in quadrant C | 3,635,100 | 496,513 |
Events in quadrant D | 4,252,481 | 470,425 |
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 | 30 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 114 | 0 |
B | 0 | 114 | 0 |
C | 0 | 114 | 0 |
D | 0 | 114 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13357 | 3 |
B | 0 | 45064 | 2 |
C | 0 | 14120 | 2 |
D | 0 | 16455 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5621 | 108 | 1.921366% |
B | 5621 | 5504 | 97.918520% |
C | 5621 | 182 | 3.237858% |
D | 5621 | 257 | 4.572140% |
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 | 7083 | 5622 | 49 | 49 | 0.69% | 0.87% | |
B | 7083 | 5621 | 5271 | 5271 | 74.42% | 93.77% | |
C | 7083 | 5622 | 121 | 121 | 1.71% | 2.15% | |
D | 7083 | 5622 | 228 | 228 | 3.22% | 4.06% | |
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 | 548542 | 3950.91 | 672 | 660 | 138.7 |
A | 10 | 83 | 173889 | 1249.2 | 672 | 660 | 138.7 |
A | 13 | 254 | 9077 | 60.7 | 672 | 660 | 138.7 |
B | 5 | 14 | 3656232 | 59790.63 | 307 | 300 | 61.1 |
B | 5 | 31 | 3647939 | 59655.0 | 307 | 300 | 61.1 |
B | 5 | 15 | 3635248 | 59447.45 | 307 | 300 | 61.1 |
C | 9 | 187 | 505214 | 3340.1 | 644 | 650 | 151.1 |
C | 15 | 214 | 235073 | 1551.83 | 644 | 650 | 151.1 |
C | 0 | 10 | 205403 | 1355.42 | 644 | 650 | 151.1 |
D | 2 | 249 | 534600 | 3361.01 | 643 | 625 | 158.9 |
D | 8 | 195 | 488716 | 3072.2 | 643 | 625 | 158.9 |
D | 7 | 223 | 204436 | 1282.85 | 643 | 625 | 158.9 |
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 | |