Observation information
- date-obs: 2024-07-31
- time-obs: 14:05:27.316700000
- date-end: 2024-07-31
- time-end: 16:04:18.310700000
- obs_id: A13_081T01_9000006354
- exposure: 6801.75205731
- sourceid: 1ES 1927+654
- observer: savithri
- ra_pnt: 291.8314
- dec_pnt: 65.56506
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A13_081T01_9000006354_47814cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47814cztM0_level2_quad_clean.evt
|
Size (bytes) | 552,188,160 | 112,714,560 |
Size | 526.6 MB
| 107.5 MB
|
Events in quadrant A | 7,167,204 | 757,237 |
Events in quadrant B | 4,438,454 | 769,031 |
Events in quadrant C | 3,135,801 | 727,411 |
Events in quadrant D | 5,146,694 | 662,321 |
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 | 26566 | 14 |
B | 0 | 18238 | 9 |
C | 0 | 14886 | 4 |
D | 0 | 20169 | 24 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7126 | 169 | 2.371597% |
B | 7127 | 68 | 0.954118% |
C | 7129 | 28 | 0.392762% |
D | 7126 | 330 | 4.630929% |
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 | 7131 | 7130 | 17 | 17 | 0.24% | 0.24% | |
B | 7132 | 7131 | 12 | 12 | 0.17% | 0.17% | |
C | 7132 | 7131 | 16 | 16 | 0.22% | 0.22% | |
D | 7132 | 7129 | 281 | 281 | 3.94% | 3.94% | |
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 | 4017562 | 24594.03 | 778 | 761 | 163.3 |
A | 13 | 248 | 95605 | 580.71 | 778 | 761 | 163.3 |
A | 7 | 3 | 31687 | 189.35 | 778 | 761 | 163.3 |
B | 10 | 7 | 854161 | 5638.33 | 770 | 743 | 151.4 |
B | 0 | 200 | 246689 | 1624.91 | 770 | 743 | 151.4 |
B | 5 | 255 | 61403 | 400.77 | 770 | 743 | 151.4 |
C | 14 | 254 | 82506 | 454.46 | 764 | 766 | 179.9 |
C | 12 | 2 | 35672 | 194.07 | 764 | 766 | 179.9 |
C | 3 | 110 | 11186 | 57.93 | 764 | 766 | 179.9 |
D | 12 | 2 | 788839 | 4151.48 | 760 | 735 | 189.8 |
D | 2 | 165 | 470692 | 2475.58 | 760 | 735 | 189.8 |
D | 2 | 249 | 316187 | 1661.7 | 760 | 735 | 189.8 |
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 |
|
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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 |
|
|
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
|
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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 | |