Observation information
- date-obs: 2022-02-21
- time-obs: 06:33:45.521700000
- date-end: 2022-02-21
- time-end: 07:40:44.523800000
- obs_id: C07_014T01_9000004950
- exposure: 1482.79737467
- sourceid: Crab
- observer: arrao
- ra_pnt: 83.63321
- dec_pnt: 22.01446
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C07_014T01_9000004950_34610cztM0_level2.evt
| modeM0/AS1C07_014T01_9000004950_34610cztM0_level2_quad_clean.evt
|
Size (bytes) | 248,598,720 | 38,070,720 |
Size | 237.1 MB
| 36.3 MB
|
Events in quadrant A | 1,406,595 | 252,881 |
Events in quadrant B | 2,020,753 | 244,131 |
Events in quadrant C | 1,508,147 | 247,166 |
Events in quadrant D | 2,419,903 | 226,334 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 52 | 0 |
B | 0 | 52 | 0 |
C | 0 | 52 | 0 |
D | 0 | 52 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 15 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 5546 | 1 |
B | 0 | 7554 | 1 |
C | 0 | 5937 | 1 |
D | 0 | 8968 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 2529 | 9 | 0.355872% |
B | 2529 | 215 | 8.501384% |
C | 2529 | 33 | 1.304864% |
D | 2529 | 38 | 1.502570% |
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 | 2529 | 2529 | 2 | 2 | 0.08% | 0.08% | |
B | 2529 | 2529 | 154 | 154 | 6.09% | 6.09% | |
C | 2529 | 2529 | 19 | 19 | 0.75% | 0.75% | |
D | 2529 | 2529 | 38 | 38 | 1.50% | 1.50% | |
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 | 21748 | 298.01 | 355 | 351 | 71.8 |
A | 15 | 174 | 8578 | 114.58 | 355 | 351 | 71.8 |
A | 13 | 254 | 4230 | 54.03 | 355 | 351 | 71.8 |
B | 5 | 172 | 595995 | 9159.89 | 340 | 334 | 65.0 |
B | 5 | 255 | 55395 | 846.71 | 340 | 334 | 65.0 |
B | 10 | 245 | 14138 | 212.27 | 340 | 334 | 65.0 |
C | 15 | 214 | 106976 | 1374.79 | 332 | 336 | 77.6 |
C | 0 | 10 | 83829 | 1076.38 | 332 | 336 | 77.6 |
C | 14 | 67 | 14626 | 184.23 | 332 | 336 | 77.6 |
D | 8 | 195 | 843620 | 10292.3 | 332 | 325 | 81.9 |
D | 7 | 223 | 94551 | 1150.02 | 332 | 325 | 81.9 |
D | 12 | 235 | 60784 | 737.89 | 332 | 325 | 81.9 |
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 | |