Observation information
- date-obs: 2024-09-14
- time-obs: 18:02:38.136700000
- date-end: 2024-09-14
- time-end: 22:10:43.116800000
- obs_id: A13_081T01_9000006428
- exposure: 12416.8311436
- 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_48485cztM0_level2.fits
| modeM0/AS1A13_081T01_9000006428_48485cztM0_level2_quad_clean.evt
|
Size (bytes) | 883,661,760 | 201,885,120 |
Size | 842.7 MB
| 192.5 MB
|
Events in quadrant A | 13,863,007 | 1,302,711 |
Events in quadrant B | 6,073,121 | 1,382,565 |
Events in quadrant C | 5,468,864 | 1,315,765 |
Events in quadrant D | 6,295,127 | 1,209,411 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 49966 | 3 |
B | 0 | 27808 | 4 |
C | 0 | 26652 | 3 |
D | 0 | 28817 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 19 | 0 |
B | 0 | 19 | 0 |
C | 0 | 19 | 0 |
D | 0 | 19 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 266 | 0 |
B | 0 | 266 | 0 |
C | 0 | 266 | 0 |
D | 0 | 266 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 13055 | 530 | 4.059747% |
B | 13055 | 157 | 1.202604% |
C | 13055 | 70 | 0.536193% |
D | 13055 | 158 | 1.210264% |
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 | 14885 | 13057 | 144 | 144 | 0.97% | 1.10% | |
B | 14885 | 13057 | 35 | 35 | 0.24% | 0.27% | |
C | 14885 | 13057 | 1 | 1 | 0.01% | 0.01% | |
D | 14885 | 13058 | 110 | 110 | 0.74% | 0.84% | |
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 | 8106555 | 28258.85 | 1377 | 1345 | 286.8 |
A | 12 | 189 | 368726 | 1280.88 | 1377 | 1345 | 286.8 |
A | 15 | 192 | 29836 | 99.33 | 1377 | 1345 | 286.8 |
B | 12 | 18 | 114429 | 416.8 | 1386 | 1343 | 271.3 |
B | 0 | 197 | 90881 | 330.01 | 1386 | 1343 | 271.3 |
B | 8 | 234 | 83347 | 302.24 | 1386 | 1343 | 271.3 |
C | 12 | 2 | 26618 | 78.22 | 1373 | 1376 | 322.7 |
C | 14 | 254 | 21029 | 60.9 | 1373 | 1376 | 322.7 |
C | 14 | 246 | 18135 | 51.93 | 1373 | 1376 | 322.7 |
D | 2 | 249 | 393198 | 1148.68 | 1370 | 1327 | 341.1 |
D | 2 | 120 | 199414 | 580.65 | 1370 | 1327 | 341.1 |
D | 12 | 233 | 100359 | 290.29 | 1370 | 1327 | 341.1 |
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 | |