Observation information
- date-obs: 2024-07-31
- time-obs: 06:18:19.364600000
- date-end: 2024-07-31
- time-end: 07:20:07.337700000
- obs_id: A13_081T01_9000006354
- exposure: 2358.5717507
- 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_47809cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47809cztM0_level2_quad_clean.evt
|
Size (bytes) | 187,260,480 | 43,816,320 |
Size | 178.6 MB
| 41.8 MB
|
Events in quadrant A | 2,768,330 | 280,813 |
Events in quadrant B | 1,372,234 | 299,826 |
Events in quadrant C | 1,203,951 | 292,692 |
Events in quadrant D | 1,384,977 | 268,823 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 54 | 0 |
B | 0 | 54 | 0 |
C | 0 | 54 | 0 |
D | 0 | 54 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10284 | 1 |
B | 0 | 5646 | 1 |
C | 0 | 5404 | 1 |
D | 0 | 5950 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 2574 | 198 | 7.692308% |
B | 2574 | 121 | 4.700855% |
C | 2574 | 57 | 2.214452% |
D | 2574 | 76 | 2.952603% |
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 | 3709 | 2574 | 14 | 14 | 0.38% | 0.54% | |
B | 3709 | 2574 | 4 | 4 | 0.11% | 0.16% | |
C | 3709 | 2575 | 1 | 1 | 0.03% | 0.04% | |
D | 3709 | 2575 | 20 | 20 | 0.54% | 0.78% | |
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 | 1601088 | 25212.1 | 300 | 293 | 63.5 |
A | 0 | 31 | 7796 | 118.17 | 300 | 293 | 63.5 |
A | 3 | 137 | 3422 | 49.28 | 300 | 293 | 63.5 |
B | 0 | 155 | 70396 | 1147.17 | 306 | 296 | 61.1 |
B | 5 | 255 | 43126 | 700.9 | 306 | 296 | 61.1 |
B | 10 | 7 | 36661 | 595.11 | 306 | 296 | 61.1 |
C | 12 | 2 | 12945 | 176.47 | 303 | 303 | 71.6 |
C | 14 | 254 | 8112 | 109.01 | 303 | 303 | 71.6 |
C | 3 | 110 | 2114 | 25.28 | 303 | 303 | 71.6 |
D | 2 | 165 | 104221 | 1382.42 | 300 | 291 | 75.2 |
D | 12 | 2 | 68200 | 903.29 | 300 | 291 | 75.2 |
D | 2 | 37 | 47350 | 625.95 | 300 | 291 | 75.2 |
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 | |