Observation information
- date-obs: 2022-05-18
- time-obs: 02:52:01.838500000
- date-end: 2022-05-18
- time-end: 05:03:58.833200000
- obs_id: A11_080T01_9000005146
- exposure: 3461.78718455
- 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_35880cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35880cztM0_level2_quad_clean.evt
|
Size (bytes) | 532,080,000 | 80,311,680 |
Size | 507.4 MB
| 76.6 MB
|
Events in quadrant A | 2,892,418 | 532,827 |
Events in quadrant B | 6,357,246 | 491,094 |
Events in quadrant C | 3,025,824 | 519,085 |
Events in quadrant D | 3,457,961 | 496,323 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23 | 0 |
B | 0 | 23 | 0 |
C | 0 | 23 | 0 |
D | 0 | 24 | 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 | 12020 | 3 |
B | 0 | 22562 | 2 |
C | 0 | 12324 | 2 |
D | 0 | 14038 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5609 | 10 | 0.178285% |
B | 5609 | 1514 | 26.992334% |
C | 5609 | 97 | 1.729364% |
D | 5609 | 127 | 2.264218% |
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 | 7312 | 5610 | 1 | 1 | 0.01% | 0.02% | |
B | 7312 | 5610 | 1337 | 1337 | 18.29% | 23.83% | |
C | 7312 | 5610 | 63 | 63 | 0.86% | 1.12% | |
D | 7312 | 5610 | 105 | 105 | 1.44% | 1.87% | |
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 | 171274 | 1258.31 | 670 | 656 | 135.6 |
A | 15 | 169 | 86284 | 631.51 | 670 | 656 | 135.6 |
A | 7 | 48 | 27376 | 197.06 | 670 | 656 | 135.6 |
B | 5 | 63 | 3089463 | 28338.18 | 570 | 559 | 109.0 |
B | 5 | 172 | 853594 | 7825.9 | 570 | 559 | 109.0 |
B | 4 | 81 | 44901 | 406.8 | 570 | 559 | 109.0 |
C | 0 | 10 | 271115 | 1815.33 | 639 | 645 | 149.0 |
C | 15 | 214 | 233551 | 1563.21 | 639 | 645 | 149.0 |
C | 1 | 23 | 33126 | 218.0 | 639 | 645 | 149.0 |
D | 8 | 195 | 343635 | 2188.82 | 639 | 623 | 156.7 |
D | 10 | 118 | 205395 | 1306.69 | 639 | 623 | 156.7 |
D | 2 | 250 | 141979 | 902.02 | 639 | 623 | 156.7 |
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 | |