Observation information
- date-obs: 2024-09-14
- time-obs: 02:49:13.206600000
- date-end: 2024-09-14
- time-end: 04:50:15.195600000
- obs_id: A13_081T01_9000006428
- exposure: 5486.19886512
- 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_48475cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48475cztM0_level2_quad_clean.evt
|
Size (bytes) | 430,551,360 | 97,001,280 |
Size | 410.6 MB
| 92.5 MB
|
Events in quadrant A | 6,043,521 | 646,736 |
Events in quadrant B | 2,633,989 | 680,125 |
Events in quadrant C | 2,518,020 | 646,124 |
Events in quadrant D | 4,267,286 | 538,247 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22293 | 1 |
B | 0 | 12450 | 1 |
C | 0 | 12372 | 1 |
D | 0 | 17517 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 122 | 0 |
B | 0 | 122 | 0 |
C | 0 | 122 | 0 |
D | 0 | 122 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6107 | 142 | 2.325201% |
B | 6108 | 39 | 0.638507% |
C | 6108 | 12 | 0.196464% |
D | 6108 | 612 | 10.019646% |
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 | 7262 | 6107 | 28 | 28 | 0.39% | 0.46% | |
B | 7263 | 6109 | 5 | 5 | 0.07% | 0.08% | |
C | 7263 | 6109 | 0 | 0 | 0.00% | 0.00% | |
D | 7262 | 6108 | 600 | 600 | 8.26% | 9.82% | |
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 | 3536586 | 26346.25 | 646 | 633 | 134.2 |
A | 13 | 254 | 10841 | 76.06 | 646 | 633 | 134.2 |
A | 0 | 31 | 8090 | 55.56 | 646 | 633 | 134.2 |
B | 8 | 234 | 49394 | 385.64 | 650 | 630 | 126.4 |
B | 12 | 111 | 16256 | 123.57 | 650 | 630 | 126.4 |
B | 11 | 111 | 14991 | 113.57 | 650 | 630 | 126.4 |
C | 3 | 233 | 12904 | 82.73 | 634 | 637 | 148.3 |
C | 12 | 2 | 11138 | 70.82 | 634 | 637 | 148.3 |
C | 14 | 254 | 10559 | 66.91 | 634 | 637 | 148.3 |
D | 7 | 38 | 1094349 | 7341.92 | 598 | 579 | 149.0 |
D | 2 | 165 | 764414 | 5127.23 | 598 | 579 | 149.0 |
D | 2 | 234 | 27326 | 179.54 | 598 | 579 | 149.0 |
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 | |