Observation information
- date-obs: 2024-07-31
- time-obs: 07:03:14.338700000
- date-end: 2024-07-31
- time-end: 09:04:24.332000000
- obs_id: A13_081T01_9000006354
- exposure: 5775.67802906
- 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_47810cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47810cztM0_level2_quad_clean.evt
|
Size (bytes) | 465,024,960 | 100,730,880 |
Size | 443.5 MB
| 96.1 MB
|
Events in quadrant A | 6,156,190 | 666,206 |
Events in quadrant B | 3,170,743 | 698,931 |
Events in quadrant C | 2,708,300 | 668,084 |
Events in quadrant D | 4,695,243 | 582,345 |
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 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22808 | 1 |
B | 0 | 13430 | 1 |
C | 0 | 12824 | 1 |
D | 0 | 18416 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6225 | 235 | 3.775100% |
B | 6226 | 127 | 2.039833% |
C | 6226 | 63 | 1.011886% |
D | 6226 | 468 | 7.516865% |
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 | 6225 | 6 | 6 | 0.08% | 0.10% | |
B | 7271 | 6226 | 2 | 2 | 0.03% | 0.03% | |
C | 7271 | 6227 | 12 | 12 | 0.17% | 0.19% | |
D | 7271 | 6227 | 406 | 406 | 5.58% | 6.52% | |
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 | 3473078 | 24491.87 | 687 | 673 | 141.8 |
A | 0 | 31 | 34445 | 238.2 | 687 | 673 | 141.8 |
A | 3 | 137 | 7928 | 51.17 | 687 | 673 | 141.8 |
B | 0 | 155 | 149669 | 1109.26 | 686 | 665 | 134.3 |
B | 10 | 7 | 123348 | 913.32 | 686 | 665 | 134.3 |
B | 5 | 255 | 102873 | 760.89 | 686 | 665 | 134.3 |
C | 14 | 254 | 65490 | 414.0 | 673 | 673 | 156.6 |
C | 12 | 2 | 17788 | 109.32 | 673 | 673 | 156.6 |
C | 13 | 61 | 4567 | 24.87 | 673 | 673 | 156.6 |
D | 12 | 2 | 1079593 | 6605.9 | 660 | 638 | 163.3 |
D | 2 | 165 | 984064 | 6021.02 | 660 | 638 | 163.3 |
D | 2 | 37 | 33876 | 203.5 | 660 | 638 | 163.3 |
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 | |