Observation information
- date-obs: 2024-12-13
- time-obs: 13:49:54.743700000
- date-end: 2024-12-13
- time-end: 18:33:57.986800000
- obs_id: A13_037T01_9000006440
- exposure: 21.6479302049
- 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_9000006440_49819cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49819cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,911,625,280 | 114,560,640 |
Size | 2.7 GB
| 109.3 MB
|
Events in quadrant A | 32,688,864 | 606,002 |
Events in quadrant B | 10,019,760 | 1,603,709 |
Events in quadrant C | 25,701,500 | 101,874 |
Events in quadrant D | 38,076,526 | 1,907 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3 | 0 |
B | 0 | 3 | 0 |
C | 0 | 3 | 0 |
D | 0 | 3 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 336 | 0 |
B | 0 | 336 | 0 |
C | 0 | 336 | 0 |
D | 0 | 336 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108556 | 1 |
B | 0 | 41319 | 1 |
C | 0 | 88133 | 1 |
D | 0 | 124401 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 16739 | 10504 | 62.751658% |
B | 16739 | 714 | 4.265488% |
C | 16740 | 15762 | 94.157706% |
D | 16740 | 16727 | 99.922342% |
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 | 17043 | 16738 | 10201 | 10201 | 59.85% | 60.95% |  |
B | 17043 | 16738 | 521 | 521 | 3.06% | 3.11% |  |
C | 17044 | 16739 | 4048 | 4048 | 23.75% | 24.18% |  |
D | 17044 | 16739 | 14367 | 14367 | 84.29% | 85.83% |  |
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 | 0 | 98 | 16891397 | 51928.6 | 1173 | 1135 | 325.3 |
A | 12 | 50 | 1695091 | 5208.02 | 1173 | 1135 | 325.3 |
A | 3 | 99 | 1507431 | 4631.06 | 1173 | 1135 | 325.3 |
B | 10 | 44 | 1418172 | 3847.76 | 1746 | 1687 | 368.1 |
B | 1 | 255 | 293252 | 792.01 | 1746 | 1687 | 368.1 |
B | 4 | 206 | 286736 | 774.31 | 1746 | 1687 | 368.1 |
C | 15 | 147 | 9604568 | 70919.88 | 323 | 313 | 135.4 |
C | 15 | 197 | 4565758 | 33712.23 | 323 | 313 | 135.4 |
C | 15 | 174 | 1209527 | 8929.1 | 323 | 313 | 135.4 |
D | 7 | 61 | 8447797 | 43222.26 | 514 | 486 | 195.4 |
D | 7 | 126 | 3260071 | 16678.28 | 514 | 486 | 195.4 |
D | 15 | 168 | 2680317 | 13711.86 | 514 | 486 | 195.4 |
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 |
 |
 |
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 |  |