Observation information
- date-obs: 2024-08-22
- time-obs: 19:09:02.872000000
- date-end: 2024-08-22
- time-end: 21:32:48.859400000
- obs_id: C09_009T01_9000006406
- exposure: 511.89725256
- sourceid: Crab
- observer: arrao
- ra_pnt: 83.63321
- dec_pnt: 22.01446
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_009T01_9000006406_48144cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48144cztM0_level2_quad_clean.evt
|
Size (bytes) | 455,313,600 | 91,987,200 |
Size | 434.2 MB
| 87.7 MB
|
Events in quadrant A | 7,765,883 | 788,999 |
Events in quadrant B | 1,166,994 | 47,966 |
Events in quadrant C | 3,159,914 | 777,946 |
Events in quadrant D | 4,241,913 | 707,227 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 136 | 0 |
B | 0 | 136 | 0 |
C | 0 | 136 | 0 |
D | 0 | 136 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27634 | 4 |
B | 0 | 7164 | 2 |
C | 0 | 13837 | 2 |
D | 0 | 17078 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 21 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6592 | 588 | 8.919903% |
B | 6592 | 6592 | 100.000000% |
C | 6592 | 89 | 1.350121% |
D | 6592 | 146 | 2.214806% |
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 | 7582 | 6593 | 150 | 150 | 1.98% | 2.28% | |
B | 7581 | 6569 | 0 | 0 | 0.00% | 0.00% | |
C | 7582 | 6593 | 18 | 18 | 0.24% | 0.27% | |
D | 7582 | 6593 | 76 | 76 | 1.00% | 1.15% | |
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 | 4559428 | 27855.54 | 775 | 760 | 163.7 |
A | 13 | 248 | 162837 | 990.36 | 775 | 760 | 163.7 |
A | 3 | 14 | 16632 | 96.99 | 775 | 760 | 163.7 |
B | 2 | 177 | 908445 | 74742.16 | 49 | 48 | 12.2 |
B | 0 | 200 | 19665 | 1614.07 | 49 | 48 | 12.2 |
B | 4 | 171 | 15367 | 1260.43 | 49 | 48 | 12.2 |
C | 12 | 2 | 52580 | 278.82 | 782 | 788 | 185.8 |
C | 12 | 250 | 35354 | 186.08 | 782 | 788 | 185.8 |
C | 0 | 207 | 16056 | 82.19 | 782 | 788 | 185.8 |
D | 12 | 2 | 421026 | 2131.28 | 778 | 756 | 197.2 |
D | 2 | 165 | 404763 | 2048.81 | 778 | 756 | 197.2 |
D | 2 | 37 | 204321 | 1032.32 | 778 | 756 | 197.2 |
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 | |