Observation information
- date-obs: 2022-05-16
- time-obs: 21:01:57.901500000
- date-end: 2022-05-16
- time-end: 23:48:52.896400000
- obs_id: A11_080T01_9000005146
- exposure: 5253.35287885
- 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_35863cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35863cztM0_level2_quad_clean.evt
|
Size (bytes) | 841,737,600 | 114,088,320 |
Size | 802.7 MB
| 108.8 MB
|
Events in quadrant A | 8,279,231 | 764,522 |
Events in quadrant B | 5,528,268 | 770,786 |
Events in quadrant C | 4,475,846 | 786,784 |
Events in quadrant D | 6,712,088 | 619,524 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27 | 0 |
B | 0 | 27 | 0 |
C | 0 | 27 | 0 |
D | 0 | 27 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 152 | 0 |
B | 0 | 152 | 0 |
C | 0 | 152 | 0 |
D | 0 | 152 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29689 | 3 |
B | 0 | 21340 | 2 |
C | 0 | 17702 | 2 |
D | 0 | 24848 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7359 | 1320 | 17.937220% |
B | 7359 | 585 | 7.949450% |
C | 7359 | 251 | 3.410790% |
D | 7359 | 1239 | 16.836527% |
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 | 10015 | 7361 | 990 | 990 | 9.89% | 13.45% | |
B | 10015 | 7361 | 478 | 478 | 4.77% | 6.49% | |
C | 10015 | 7361 | 228 | 228 | 2.28% | 3.10% | |
D | 10015 | 7361 | 1162 | 1162 | 11.60% | 15.79% | |
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 | 4864902 | 28695.09 | 827 | 811 | 169.5 |
A | 10 | 83 | 177777 | 1043.99 | 827 | 811 | 169.5 |
A | 7 | 48 | 25265 | 144.26 | 827 | 811 | 169.5 |
B | 5 | 172 | 1690324 | 10653.57 | 825 | 806 | 158.6 |
B | 5 | 255 | 338733 | 2130.86 | 825 | 806 | 158.6 |
B | 0 | 213 | 148481 | 931.19 | 825 | 806 | 158.6 |
C | 15 | 208 | 522010 | 2709.05 | 822 | 833 | 192.4 |
C | 15 | 214 | 300829 | 1559.36 | 822 | 833 | 192.4 |
C | 1 | 23 | 298043 | 1544.88 | 822 | 833 | 192.4 |
D | 1 | 52 | 2732153 | 15366.4 | 719 | 703 | 177.8 |
D | 10 | 118 | 496129 | 2787.13 | 719 | 703 | 177.8 |
D | 13 | 249 | 226529 | 1270.44 | 719 | 703 | 177.8 |
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 |
|
|
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 | |