Observation information
- date-obs: 2024-09-18
- time-obs: 07:24:03.856500000
- date-end: 2024-09-18
- time-end: 09:38:40.850800000
- obs_id: A13_037T01_9000006436
- exposure: 7237.03361028
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_037T01_9000006436_48537cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48537cztM0_level2_quad_clean.evt
|
Size (bytes) | 576,673,920 | 118,575,360 |
Size | 550.0 MB
| 113.1 MB
|
Events in quadrant A | 8,016,825 | 752,439 |
Events in quadrant B | 3,877,257 | 807,207 |
Events in quadrant C | 3,464,869 | 792,325 |
Events in quadrant D | 5,368,484 | 684,363 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29629 | 183 |
B | 0 | 17602 | 90 |
C | 0 | 16758 | 98 |
D | 0 | 22030 | 124 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1 | 0 |
B | 0 | 1 | 0 |
C | 0 | 1 | 0 |
D | 0 | 1 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 160 | 0 |
B | 0 | 160 | 0 |
C | 0 | 160 | 0 |
D | 0 | 160 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7968 | 687 | 8.621988% |
B | 7973 | 484 | 6.070488% |
C | 7974 | 301 | 3.774768% |
D | 7977 | 683 | 8.562116% |
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 | 8047 | 7974 | 40 | 40 | 0.50% | 0.50% | |
B | 8060 | 7980 | 21 | 21 | 0.26% | 0.26% | |
C | 8057 | 7981 | 2 | 2 | 0.02% | 0.03% | |
D | 8065 | 7982 | 296 | 296 | 3.67% | 3.71% | |
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 | 4283627 | 23189.16 | 872 | 852 | 184.7 |
A | 12 | 189 | 334441 | 1806.22 | 872 | 852 | 184.7 |
A | 7 | 3 | 15556 | 79.62 | 872 | 852 | 184.7 |
B | 5 | 255 | 332390 | 1868.18 | 881 | 852 | 177.5 |
B | 0 | 183 | 29183 | 159.64 | 881 | 852 | 177.5 |
B | 12 | 111 | 23226 | 126.08 | 881 | 852 | 177.5 |
C | 14 | 254 | 19847 | 91.27 | 880 | 879 | 207.8 |
C | 12 | 250 | 14708 | 66.55 | 880 | 879 | 207.8 |
C | 13 | 61 | 5775 | 23.56 | 880 | 879 | 207.8 |
D | 2 | 165 | 1936502 | 8832.69 | 863 | 832 | 219.1 |
D | 2 | 249 | 102849 | 465.52 | 863 | 832 | 219.1 |
D | 2 | 234 | 33471 | 148.94 | 863 | 832 | 219.1 |
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 | |