Observation information
- date-obs: 2024-07-31
- time-obs: 22:25:45.283400000
- date-end: 2024-08-01
- time-end: 00:43:09.271800000
- obs_id: A13_081T01_9000006354
- exposure: 5067.54629421
- 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_47820cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47820cztM0_level2_quad_clean.evt
|
Size (bytes) | 546,923,520 | 101,471,040 |
Size | 521.6 MB
| 96.8 MB
|
Events in quadrant A | 6,656,089 | 694,987 |
Events in quadrant B | 3,060,771 | 721,342 |
Events in quadrant C | 2,737,007 | 694,851 |
Events in quadrant D | 7,280,339 | 501,836 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16 | 0 |
B | 0 | 17 | 0 |
C | 0 | 17 | 0 |
D | 0 | 17 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23968 | 2 |
B | 0 | 14034 | 2 |
C | 0 | 13377 | 2 |
D | 0 | 26337 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6585 | 208 | 3.158694% |
B | 6585 | 30 | 0.455581% |
C | 6585 | 8 | 0.121488% |
D | 6585 | 1593 | 24.191344% |
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 | 7630 | 6586 | 110 | 110 | 1.44% | 1.67% | |
B | 7630 | 6585 | 2 | 2 | 0.03% | 0.03% | |
C | 7630 | 6586 | 4 | 4 | 0.05% | 0.06% | |
D | 7629 | 6584 | 1446 | 1446 | 18.95% | 21.96% | |
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 | 3910676 | 27294.18 | 692 | 677 | 143.3 |
A | 13 | 248 | 28442 | 193.82 | 692 | 677 | 143.3 |
A | 14 | 235 | 21098 | 142.55 | 692 | 677 | 143.3 |
B | 0 | 200 | 219023 | 1594.0 | 696 | 673 | 137.0 |
B | 10 | 7 | 19238 | 135.53 | 696 | 673 | 137.0 |
B | 0 | 186 | 17799 | 125.02 | 696 | 673 | 137.0 |
C | 1 | 3 | 17436 | 102.9 | 690 | 692 | 162.7 |
C | 12 | 2 | 17265 | 101.85 | 690 | 692 | 162.7 |
C | 14 | 254 | 13319 | 77.6 | 690 | 692 | 162.7 |
D | 12 | 2 | 1833688 | 12090.91 | 599 | 580 | 151.6 |
D | 2 | 249 | 1320029 | 8702.89 | 599 | 580 | 151.6 |
D | 12 | 3 | 1299860 | 8569.86 | 599 | 580 | 151.6 |
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 | |