Observation information
- date-obs: 2024-08-23
- time-obs: 00:48:50.842800000
- date-end: 2024-08-23
- time-end: 02:48:51.834600000
- obs_id: C09_009T01_9000006406
- exposure: 1.12717801332
- 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_48147cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48147cztM0_level2_quad_clean.evt
|
Size (bytes) | 457,856,640 | 95,425,920 |
Size | 436.6 MB
| 91.0 MB
|
Events in quadrant A | 7,452,226 | 833,571 |
Events in quadrant B | 1,237,571 | 120 |
Events in quadrant C | 3,273,160 | 818,437 |
Events in quadrant D | 4,417,810 | 735,738 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 144 | 0 |
B | 0 | 144 | 0 |
C | 0 | 144 | 0 |
D | 0 | 144 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27183 | 0 |
B | 0 | 7650 | 0 |
C | 0 | 15022 | 0 |
D | 0 | 18118 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7202 | 172 | 2.388225% |
B | 7202 | 7201 | 99.986115% |
C | 7202 | 12 | 0.166620% |
D | 7202 | 130 | 1.805054% |
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 | 7202 | 7202 | 4 | 4 | 0.06% | 0.06% | |
B | 7202 | 7181 | 0 | 0 | 0.00% | 0.00% | |
C | 7202 | 7202 | 4 | 4 | 0.06% | 0.06% | |
D | 7202 | 7202 | 108 | 108 | 1.50% | 1.50% | |
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 | 4203117 | 24073.92 | 824 | 808 | 174.6 |
A | 7 | 3 | 25646 | 142.29 | 824 | 808 | 174.6 |
A | 13 | 248 | 22221 | 122.67 | 824 | 808 | 174.6 |
B | 2 | 177 | 996455 | 81387.68 | 50 | 49 | 12.2 |
B | 4 | 171 | 18670 | 1520.99 | 50 | 49 | 12.2 |
B | 4 | 21 | 14692 | 1196.06 | 50 | 49 | 12.2 |
C | 12 | 2 | 26376 | 131.19 | 811 | 818 | 194.8 |
C | 0 | 207 | 25945 | 128.97 | 811 | 818 | 194.8 |
C | 10 | 187 | 23430 | 116.06 | 811 | 818 | 194.8 |
D | 12 | 2 | 840265 | 4093.5 | 800 | 775 | 205.1 |
D | 2 | 37 | 134279 | 650.99 | 800 | 775 | 205.1 |
D | 2 | 165 | 120497 | 583.79 | 800 | 775 | 205.1 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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|
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 |
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Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
|
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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 |
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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 | |