Observation information
- date-obs: 2022-05-19
- time-obs: 03:23:41.786400000
- date-end: 2022-05-19
- time-end: 05:26:18.776000000
- obs_id: A11_080T01_9000005146
- exposure: 3429.49616624
- 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_35896cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35896cztM0_level2_quad_clean.evt
|
Size (bytes) | 441,993,600 | 81,584,640 |
Size | 421.5 MB
| 77.8 MB
|
Events in quadrant A | 2,774,735 | 539,502 |
Events in quadrant B | 3,105,380 | 535,873 |
Events in quadrant C | 3,032,195 | 521,430 |
Events in quadrant D | 4,098,671 | 487,327 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18 | 0 |
B | 0 | 18 | 0 |
C | 0 | 18 | 0 |
D | 0 | 19 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 112 | 0 |
B | 0 | 112 | 0 |
C | 0 | 112 | 0 |
D | 0 | 112 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11552 | 28 |
B | 0 | 12738 | 38 |
C | 0 | 12309 | 33 |
D | 0 | 15891 | 82 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5530 | 7 | 0.126582% |
B | 5522 | 89 | 1.611735% |
C | 5529 | 63 | 1.139447% |
D | 5517 | 162 | 2.936378% |
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 | 7302 | 5538 | 0 | 0 | 0.00% | 0.00% | |
B | 7302 | 5534 | 54 | 54 | 0.74% | 0.98% | |
C | 7302 | 5539 | 54 | 54 | 0.74% | 0.97% | |
D | 7302 | 5532 | 178 | 178 | 2.44% | 3.22% | |
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 | 166733 | 1223.3 | 672 | 662 | 135.8 |
A | 13 | 254 | 8369 | 56.77 | 672 | 662 | 135.8 |
A | 10 | 255 | 7515 | 50.48 | 672 | 662 | 135.8 |
B | 5 | 172 | 249641 | 1981.01 | 658 | 644 | 125.7 |
B | 5 | 255 | 234576 | 1861.15 | 658 | 644 | 125.7 |
B | 0 | 213 | 16607 | 127.0 | 658 | 644 | 125.7 |
C | 15 | 214 | 234826 | 1573.89 | 639 | 645 | 148.8 |
C | 0 | 10 | 197526 | 1323.2 | 639 | 645 | 148.8 |
C | 0 | 207 | 105574 | 705.21 | 639 | 645 | 148.8 |
D | 12 | 227 | 787639 | 5007.98 | 635 | 618 | 157.2 |
D | 13 | 249 | 308885 | 1961.57 | 635 | 618 | 157.2 |
D | 8 | 195 | 161490 | 1023.66 | 635 | 618 | 157.2 |
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 | |