Observation information
- date-obs: 2024-08-01
- time-obs: 09:02:04.229200000
- date-end: 2024-08-01
- time-end: 11:12:13.219200000
- obs_id: A13_081T01_9000006354
- exposure: 5927.82577366
- 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_47826cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47826cztM0_level2_quad_clean.evt
|
Size (bytes) | 672,128,640 | 112,008,960 |
Size | 641.0 MB
| 106.8 MB
|
Events in quadrant A | 7,845,361 | 763,898 |
Events in quadrant B | 3,618,266 | 782,115 |
Events in quadrant C | 3,048,639 | 757,301 |
Events in quadrant D | 9,799,256 | 577,049 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 5 | 0 |
B | 0 | 5 | 0 |
C | 0 | 5 | 0 |
D | 0 | 5 | 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 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28524 | 1 |
B | 0 | 16052 | 1 |
C | 0 | 14985 | 1 |
D | 0 | 34134 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7344 | 368 | 5.010893% |
B | 7345 | 261 | 3.553438% |
C | 7344 | 119 | 1.620370% |
D | 7344 | 1672 | 22.766885% |
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 | 7809 | 7344 | 21 | 21 | 0.27% | 0.29% | |
B | 7810 | 7345 | 30 | 30 | 0.38% | 0.41% | |
C | 7809 | 7344 | 2 | 2 | 0.03% | 0.03% | |
D | 7809 | 7344 | 1594 | 1594 | 20.41% | 21.70% | |
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 | 3969167 | 24309.27 | 787 | 769 | 163.2 |
A | 0 | 31 | 831718 | 5090.16 | 787 | 769 | 163.2 |
A | 13 | 248 | 9673 | 54.54 | 787 | 769 | 163.2 |
B | 5 | 255 | 231562 | 1505.76 | 782 | 756 | 153.3 |
B | 0 | 200 | 189661 | 1232.4 | 782 | 756 | 153.3 |
B | 10 | 7 | 45411 | 291.33 | 782 | 756 | 153.3 |
C | 14 | 254 | 12611 | 65.06 | 775 | 777 | 181.9 |
C | 12 | 2 | 9187 | 46.24 | 775 | 777 | 181.9 |
C | 13 | 61 | 5185 | 24.23 | 775 | 777 | 181.9 |
D | 12 | 33 | 4616268 | 25381.35 | 727 | 701 | 181.8 |
D | 12 | 2 | 1794755 | 9865.64 | 727 | 701 | 181.8 |
D | 7 | 67 | 166188 | 910.03 | 727 | 701 | 181.8 |
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 | |