Observation information
- date-obs: 2022-02-20
- time-obs: 17:04:39.506200000
- date-end: 2022-02-20
- time-end: 19:01:57.509900000
- obs_id: C07_014T01_9000004950
- exposure: 3389.91473426
- 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_34601cztM0_level2.evt
| modeM0/AS1C07_014T01_9000004950_34601cztM0_level2_quad_clean.evt
|
Size (bytes) | 573,995,520 | 75,355,200 |
Size | 547.4 MB
| 71.9 MB
|
Events in quadrant A | 3,079,627 | 490,457 |
Events in quadrant B | 4,178,409 | 488,377 |
Events in quadrant C | 2,987,203 | 485,357 |
Events in quadrant D | 6,750,968 | 417,101 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 116 | 0 |
B | 0 | 116 | 0 |
C | 0 | 116 | 0 |
D | 0 | 116 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13 | 0 |
B | 0 | 13 | 0 |
C | 0 | 13 | 0 |
D | 0 | 13 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12859 | 2 |
B | 0 | 16130 | 1 |
C | 0 | 12224 | 1 |
D | 0 | 24248 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5725 | 115 | 2.008734% |
B | 5725 | 377 | 6.585153% |
C | 5725 | 39 | 0.681223% |
D | 5725 | 783 | 13.676856% |
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 | 7038 | 5726 | 87 | 87 | 1.24% | 1.52% | |
B | 7038 | 5726 | 233 | 233 | 3.31% | 4.07% | |
C | 7038 | 5726 | 23 | 23 | 0.33% | 0.40% | |
D | 7038 | 5726 | 752 | 752 | 10.68% | 13.13% | |
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 | 15 | 169 | 379289 | 2752.85 | 679 | 668 | 137.5 |
A | 10 | 83 | 35053 | 250.0 | 679 | 668 | 137.5 |
A | 9 | 143 | 21511 | 151.54 | 679 | 668 | 137.5 |
B | 5 | 172 | 1068411 | 8333.46 | 665 | 650 | 128.1 |
B | 4 | 171 | 137320 | 1066.66 | 665 | 650 | 128.1 |
B | 0 | 189 | 110884 | 860.33 | 665 | 650 | 128.1 |
C | 15 | 214 | 237920 | 1522.23 | 664 | 670 | 155.9 |
C | 0 | 10 | 92256 | 587.63 | 664 | 670 | 155.9 |
C | 0 | 207 | 39683 | 250.31 | 664 | 670 | 155.9 |
D | 8 | 195 | 2626390 | 15678.63 | 630 | 616 | 167.5 |
D | 13 | 249 | 475402 | 2834.97 | 630 | 616 | 167.5 |
D | 14 | 52 | 455377 | 2715.4 | 630 | 616 | 167.5 |
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 | |