Observation information
- date-obs: 2024-08-01
- time-obs: 07:22:56.236500000
- date-end: 2024-08-01
- time-end: 09:24:08.226700000
- obs_id: A13_081T01_9000006354
- exposure: 2775.71160954
- 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_47825cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47825cztM0_level2_quad_clean.evt
|
Size (bytes) | 696,444,480 | 89,542,080 |
Size | 664.2 MB
| 85.4 MB
|
Events in quadrant A | 6,543,295 | 660,697 |
Events in quadrant B | 2,930,290 | 688,977 |
Events in quadrant C | 2,685,430 | 658,301 |
Events in quadrant D | 13,128,840 | 259,590 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9 | 0 |
B | 0 | 9 | 0 |
C | 0 | 9 | 0 |
D | 0 | 9 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23907 | 3 |
B | 0 | 13290 | 1 |
C | 0 | 13041 | 1 |
D | 0 | 43345 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6351 | 267 | 4.204062% |
B | 6352 | 138 | 2.172544% |
C | 6352 | 75 | 1.180730% |
D | 6352 | 3867 | 60.878463% |
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 | 7271 | 6351 | 24 | 24 | 0.33% | 0.38% | |
B | 7272 | 6352 | 8 | 8 | 0.11% | 0.13% | |
C | 7272 | 6353 | 10 | 10 | 0.14% | 0.16% | |
D | 7272 | 6352 | 3841 | 3841 | 52.82% | 60.47% | |
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 | 3506328 | 24847.55 | 683 | 669 | 141.1 |
A | 0 | 31 | 392819 | 2779.5 | 683 | 669 | 141.1 |
A | 3 | 137 | 8055 | 52.35 | 683 | 669 | 141.1 |
B | 0 | 200 | 90884 | 674.43 | 683 | 661 | 133.8 |
B | 10 | 7 | 32168 | 235.52 | 683 | 661 | 133.8 |
B | 4 | 21 | 25892 | 188.6 | 683 | 661 | 133.8 |
C | 14 | 254 | 55724 | 351.77 | 670 | 672 | 156.5 |
C | 12 | 2 | 14376 | 87.57 | 670 | 672 | 156.5 |
C | 13 | 61 | 4595 | 25.07 | 670 | 672 | 156.5 |
D | 12 | 33 | 10256555 | 83175.81 | 485 | 469 | 123.3 |
D | 12 | 2 | 589314 | 4775.47 | 485 | 469 | 123.3 |
D | 2 | 249 | 137002 | 1107.27 | 485 | 469 | 123.3 |
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 | |