Observation information
- date-obs: 2024-09-15
- time-obs: 13:37:25.432600000
- date-end: 2024-09-15
- time-end: 15:36:48.036000000
- obs_id: A13_081T01_9000006428
- exposure: 6865.05632883
- 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_48496cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48496cztM0_level2_quad_clean.evt
|
Size (bytes) | 515,473,920 | 110,960,640 |
Size | 491.6 MB
| 105.8 MB
|
Events in quadrant A | 7,697,120 | 743,192 |
Events in quadrant B | 3,563,400 | 753,435 |
Events in quadrant C | 2,960,485 | 720,208 |
Events in quadrant D | 4,304,553 | 644,139 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27976 | 0 |
B | 0 | 15765 | 0 |
C | 0 | 14620 | 0 |
D | 0 | 18170 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 142 | 0 |
B | 0 | 142 | 0 |
C | 0 | 142 | 0 |
D | 0 | 142 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7163 | 151 | 2.108055% |
B | 7164 | 149 | 2.079844% |
C | 7164 | 3 | 0.041876% |
D | 7164 | 258 | 3.601340% |
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 | 7163 | 7163 | 9 | 9 | 0.13% | 0.13% | |
B | 7164 | 7164 | 43 | 43 | 0.60% | 0.60% | |
C | 7164 | 7164 | 0 | 0 | 0.00% | 0.00% | |
D | 7164 | 7164 | 273 | 273 | 3.81% | 3.81% | |
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 | 4335613 | 26987.95 | 762 | 745 | 160.6 |
A | 12 | 189 | 373154 | 2318.54 | 762 | 745 | 160.6 |
A | 13 | 254 | 14626 | 86.42 | 762 | 745 | 160.6 |
B | 12 | 16 | 255945 | 1706.81 | 757 | 733 | 149.5 |
B | 0 | 186 | 171551 | 1142.4 | 757 | 733 | 149.5 |
B | 0 | 197 | 33765 | 220.91 | 757 | 733 | 149.5 |
C | 3 | 233 | 10506 | 55.24 | 751 | 755 | 176.5 |
C | 12 | 2 | 7563 | 38.57 | 751 | 755 | 176.5 |
C | 14 | 254 | 6191 | 30.79 | 751 | 755 | 176.5 |
D | 2 | 249 | 1074540 | 5758.71 | 744 | 721 | 186.5 |
D | 10 | 199 | 110427 | 588.33 | 744 | 721 | 186.5 |
D | 12 | 233 | 79858 | 424.4 | 744 | 721 | 186.5 |
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 |
|
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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 | |