Observation information
- date-obs: 2024-08-01
- time-obs: 01:52:25.265500000
- date-end: 2024-08-01
- time-end: 04:15:37.253300000
- obs_id: A13_081T01_9000006354
- exposure: 6133.7366088
- 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_47822cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47822cztM0_level2_quad_clean.evt
|
Size (bytes) | 486,930,240 | 109,290,240 |
Size | 464.4 MB
| 104.2 MB
|
Events in quadrant A | 6,855,786 | 730,988 |
Events in quadrant B | 3,191,280 | 763,704 |
Events in quadrant C | 2,830,310 | 728,492 |
Events in quadrant D | 4,631,919 | 623,396 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19 | 0 |
B | 0 | 20 | 0 |
C | 0 | 20 | 0 |
D | 0 | 20 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24796 | 2 |
B | 0 | 14163 | 2 |
C | 0 | 13528 | 2 |
D | 0 | 18778 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6638 | 212 | 3.193733% |
B | 6638 | 37 | 0.557397% |
C | 6638 | 9 | 0.135583% |
D | 6638 | 485 | 7.306418% |
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 | 7883 | 6639 | 84 | 84 | 1.07% | 1.27% | |
B | 7883 | 6639 | 7 | 7 | 0.09% | 0.11% | |
C | 7883 | 6639 | 5 | 5 | 0.06% | 0.08% | |
D | 7883 | 6639 | 439 | 439 | 5.57% | 6.61% | |
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 | 3927526 | 26679.77 | 714 | 700 | 147.2 |
A | 0 | 31 | 129359 | 874.14 | 714 | 700 | 147.2 |
A | 13 | 248 | 33324 | 221.66 | 714 | 700 | 147.2 |
B | 0 | 200 | 242522 | 1732.44 | 719 | 697 | 139.6 |
B | 4 | 171 | 43960 | 309.94 | 719 | 697 | 139.6 |
B | 12 | 111 | 17524 | 120.55 | 719 | 697 | 139.6 |
C | 14 | 254 | 53981 | 326.89 | 702 | 705 | 163.0 |
C | 12 | 250 | 26762 | 159.88 | 702 | 705 | 163.0 |
C | 3 | 233 | 8416 | 47.31 | 702 | 705 | 163.0 |
D | 12 | 2 | 1481780 | 8761.27 | 674 | 653 | 169.1 |
D | 2 | 249 | 199235 | 1174.67 | 674 | 653 | 169.1 |
D | 2 | 37 | 86053 | 505.16 | 674 | 653 | 169.1 |
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 | |