Observation information
- date-obs: 2024-09-14
- time-obs: 08:00:05.179400000
- date-end: 2024-09-14
- time-end: 10:00:27.169900000
- obs_id: A13_081T01_9000006428
- exposure: 6096.66688776
- 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_48478cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48478cztM0_level2_quad_clean.evt
|
Size (bytes) | 437,284,800 | 100,523,520 |
Size | 417.0 MB
| 95.9 MB
|
Events in quadrant A | 6,451,341 | 659,856 |
Events in quadrant B | 2,850,782 | 693,693 |
Events in quadrant C | 2,672,995 | 657,230 |
Events in quadrant D | 3,709,398 | 582,615 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24220 | 2 |
B | 0 | 13361 | 1 |
C | 0 | 13214 | 1 |
D | 0 | 15864 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6461 | 279 | 4.318217% |
B | 6461 | 156 | 2.414487% |
C | 6462 | 91 | 1.408233% |
D | 6462 | 341 | 5.277004% |
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 | 7221 | 6461 | 2 | 2 | 0.03% | 0.03% | |
B | 7221 | 6461 | 5 | 5 | 0.07% | 0.08% | |
C | 7222 | 6462 | 0 | 0 | 0.00% | 0.00% | |
D | 7222 | 6462 | 212 | 212 | 2.94% | 3.28% | |
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 | 3791930 | 26538.82 | 684 | 670 | 142.9 |
A | 13 | 254 | 12611 | 83.59 | 684 | 670 | 142.9 |
A | 10 | 255 | 10732 | 70.43 | 684 | 670 | 142.9 |
B | 8 | 234 | 53103 | 386.56 | 690 | 669 | 135.6 |
B | 12 | 16 | 38812 | 281.2 | 690 | 669 | 135.6 |
B | 0 | 186 | 28788 | 207.3 | 690 | 669 | 135.6 |
C | 1 | 3 | 15197 | 91.99 | 676 | 677 | 157.8 |
C | 12 | 2 | 9234 | 54.21 | 676 | 677 | 157.8 |
C | 12 | 250 | 6665 | 37.94 | 676 | 677 | 157.8 |
D | 2 | 249 | 603981 | 3649.06 | 665 | 644 | 165.3 |
D | 7 | 38 | 349712 | 2111.21 | 665 | 644 | 165.3 |
D | 2 | 165 | 47015 | 280.46 | 665 | 644 | 165.3 |
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 | |