Observation information
- date-obs: 2024-07-31
- time-obs: 08:40:27.334000000
- date-end: 2024-07-31
- time-end: 10:48:04.327400000
- obs_id: A13_081T01_9000006354
- exposure: 6231.69858044
- 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_47811cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006354_47811cztM0_level2_quad_clean.evt
|
Size (bytes) | 519,013,440 | 108,241,920 |
Size | 495.0 MB
| 103.2 MB
|
Events in quadrant A | 6,970,569 | 718,348 |
Events in quadrant B | 3,330,312 | 751,191 |
Events in quadrant C | 2,955,277 | 716,775 |
Events in quadrant D | 5,421,168 | 610,770 |
Level1 data integrity
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 | 140 | 0 |
B | 0 | 140 | 0 |
C | 0 | 140 | 0 |
D | 0 | 140 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25800 | 3 |
B | 0 | 14646 | 2 |
C | 0 | 14139 | 2 |
D | 0 | 21064 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6891 | 319 | 4.629227% |
B | 6892 | 146 | 2.118398% |
C | 6892 | 92 | 1.334881% |
D | 6892 | 717 | 10.403366% |
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 | 7656 | 6891 | 6 | 6 | 0.08% | 0.09% | |
B | 7657 | 6892 | 9 | 9 | 0.12% | 0.13% | |
C | 7657 | 6892 | 7 | 7 | 0.09% | 0.10% | |
D | 7657 | 6892 | 471 | 471 | 6.15% | 6.83% | |
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 | 3990457 | 25790.68 | 751 | 734 | 154.7 |
A | 0 | 31 | 56122 | 358.04 | 751 | 734 | 154.7 |
A | 13 | 248 | 22589 | 141.28 | 751 | 734 | 154.7 |
B | 5 | 255 | 157317 | 1061.11 | 752 | 728 | 147.6 |
B | 0 | 200 | 58710 | 392.91 | 752 | 728 | 147.6 |
B | 0 | 155 | 44346 | 295.57 | 752 | 728 | 147.6 |
C | 14 | 254 | 45167 | 257.72 | 738 | 740 | 172.4 |
C | 12 | 2 | 20139 | 112.54 | 738 | 740 | 172.4 |
C | 1 | 3 | 9228 | 49.24 | 738 | 740 | 172.4 |
D | 12 | 2 | 1209063 | 6827.55 | 713 | 688 | 177.0 |
D | 2 | 37 | 848384 | 4789.65 | 713 | 688 | 177.0 |
D | 2 | 165 | 424743 | 2395.99 | 713 | 688 | 177.0 |
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 | |