Observation information
- date-obs: 2024-09-15
- time-obs: 11:48:18.504200000
- date-end: 2024-09-15
- time-end: 13:51:30.043100000
- obs_id: A13_081T01_9000006428
- exposure: 7200.31621736
- 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_9000006428_48495cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48495cztM0_level2_quad_clean.evt
|
Size (bytes) | 497,050,560 | 115,551,360 |
Size | 474.0 MB
| 110.2 MB
|
Events in quadrant A | 7,667,986 | 770,978 |
Events in quadrant B | 3,380,433 | 791,757 |
Events in quadrant C | 3,031,892 | 742,912 |
Events in quadrant D | 3,745,435 | 678,392 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28802 | 0 |
B | 0 | 15467 | 0 |
C | 0 | 14975 | 0 |
D | 0 | 16731 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 148 | 0 |
B | 0 | 148 | 0 |
C | 0 | 148 | 0 |
D | 0 | 148 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7392 | 98 | 1.325758% |
B | 7393 | 46 | 0.622210% |
C | 7393 | 6 | 0.081158% |
D | 7393 | 116 | 1.569052% |
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 | 7392 | 7392 | 2 | 2 | 0.03% | 0.03% | |
B | 7393 | 7393 | 28 | 28 | 0.38% | 0.38% | |
C | 7393 | 7393 | 5 | 5 | 0.07% | 0.07% | |
D | 7393 | 7393 | 120 | 120 | 1.62% | 1.62% | |
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 | 4331985 | 26519.39 | 782 | 764 | 163.3 |
A | 12 | 189 | 257276 | 1570.58 | 782 | 764 | 163.3 |
A | 13 | 254 | 15088 | 87.7 | 782 | 764 | 163.3 |
B | 0 | 186 | 161759 | 1051.17 | 779 | 756 | 153.2 |
B | 12 | 16 | 68684 | 443.5 | 779 | 756 | 153.2 |
B | 0 | 198 | 23941 | 151.37 | 779 | 756 | 153.2 |
C | 0 | 207 | 21526 | 115.65 | 762 | 763 | 179.5 |
C | 14 | 254 | 20434 | 109.57 | 762 | 763 | 179.5 |
C | 14 | 67 | 8438 | 42.75 | 762 | 763 | 179.5 |
D | 12 | 233 | 219777 | 1146.85 | 762 | 737 | 191.0 |
D | 7 | 67 | 197645 | 1030.98 | 762 | 737 | 191.0 |
D | 12 | 2 | 146076 | 760.97 | 762 | 737 | 191.0 |
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 |
|
|
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 | |