Observation information
- date-obs: 2022-05-15
- time-obs: 13:28:15.965700000
- date-end: 2022-05-15
- time-end: 16:03:29.960700000
- obs_id: A11_080T01_9000005146
- exposure: 2875.48249708
- 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_35843cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35843cztM0_level2_quad_clean.evt
|
Size (bytes) | 509,898,240 | 71,046,720 |
Size | 486.3 MB
| 67.8 MB
|
Events in quadrant A | 3,545,708 | 461,300 |
Events in quadrant B | 2,840,040 | 465,106 |
Events in quadrant C | 3,196,566 | 453,722 |
Events in quadrant D | 5,517,031 | 415,972 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 43 | 0 |
B | 0 | 43 | 0 |
C | 0 | 43 | 0 |
D | 0 | 43 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 104 | 0 |
B | 0 | 104 | 0 |
C | 0 | 104 | 0 |
D | 0 | 104 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13880 | 3 |
B | 0 | 11409 | 2 |
C | 0 | 12196 | 2 |
D | 0 | 19777 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5069 | 61 | 1.203393% |
B | 5069 | 31 | 0.611560% |
C | 5069 | 233 | 4.596567% |
D | 5069 | 770 | 15.190373% |
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 | 9314 | 5071 | 38 | 38 | 0.41% | 0.75% | |
B | 9314 | 5071 | 4 | 4 | 0.04% | 0.08% | |
C | 9314 | 5071 | 200 | 200 | 2.15% | 3.94% | |
D | 9314 | 5071 | 793 | 793 | 8.51% | 15.64% | |
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 | 903454 | 6945.84 | 641 | 632 | 130.0 |
A | 10 | 83 | 156869 | 1202.01 | 641 | 632 | 130.0 |
A | 13 | 6 | 10123 | 73.02 | 641 | 632 | 130.0 |
B | 4 | 232 | 145677 | 1197.46 | 633 | 618 | 121.1 |
B | 5 | 172 | 79817 | 653.79 | 633 | 618 | 121.1 |
B | 0 | 213 | 62339 | 509.51 | 633 | 618 | 121.1 |
C | 0 | 10 | 444036 | 3180.27 | 605 | 614 | 139.4 |
C | 15 | 214 | 207675 | 1485.06 | 605 | 614 | 139.4 |
C | 15 | 208 | 175108 | 1251.49 | 605 | 614 | 139.4 |
D | 7 | 223 | 2075344 | 14298.79 | 595 | 582 | 145.1 |
D | 2 | 250 | 778740 | 5362.89 | 595 | 582 | 145.1 |
D | 13 | 249 | 130241 | 893.58 | 595 | 582 | 145.1 |
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 | |