Observation information
- date-obs: 2024-09-14
- time-obs: 04:30:20.197100000
- date-end: 2024-09-14
- time-end: 06:31:30.186600000
- obs_id: A13_081T01_9000006428
- exposure: 5370.96979731
- 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_48476cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48476cztM0_level2_quad_clean.evt
|
Size (bytes) | 475,896,960 | 96,940,800 |
Size | 453.9 MB
| 92.4 MB
|
Events in quadrant A | 6,225,718 | 651,537 |
Events in quadrant B | 3,004,053 | 677,186 |
Events in quadrant C | 2,565,246 | 653,843 |
Events in quadrant D | 5,344,362 | 523,922 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23136 | 1 |
B | 0 | 13492 | 1 |
C | 0 | 12480 | 1 |
D | 0 | 20330 | 1 |
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 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6140 | 193 | 3.143322% |
B | 6139 | 171 | 2.785470% |
C | 6139 | 25 | 0.407232% |
D | 6140 | 794 | 12.931596% |
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 | 7270 | 6140 | 19 | 19 | 0.26% | 0.31% | |
B | 7269 | 6139 | 93 | 93 | 1.28% | 1.51% | |
C | 7269 | 6140 | 2 | 2 | 0.03% | 0.03% | |
D | 7270 | 6141 | 741 | 741 | 10.19% | 12.07% | |
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 | 3662440 | 26811.83 | 658 | 645 | 136.6 |
A | 13 | 254 | 11262 | 77.74 | 658 | 645 | 136.6 |
A | 10 | 255 | 10796 | 74.33 | 658 | 645 | 136.6 |
B | 0 | 186 | 296085 | 2290.43 | 660 | 638 | 129.0 |
B | 12 | 16 | 50861 | 389.35 | 660 | 638 | 129.0 |
B | 8 | 234 | 33388 | 253.89 | 660 | 638 | 129.0 |
C | 12 | 2 | 22451 | 144.36 | 647 | 648 | 151.0 |
C | 14 | 67 | 7247 | 43.69 | 647 | 648 | 151.0 |
C | 14 | 254 | 6150 | 36.43 | 647 | 648 | 151.0 |
D | 2 | 165 | 1520368 | 10207.41 | 603 | 584 | 148.9 |
D | 7 | 38 | 1419691 | 9531.23 | 603 | 584 | 148.9 |
D | 2 | 249 | 29465 | 193.98 | 603 | 584 | 148.9 |
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 | |