Observation information
- date-obs: 2022-02-20
- time-obs: 00:42:31.497900000
- date-end: 2022-02-20
- time-end: 03:25:16.495100000
- obs_id: C07_014T01_9000004950
- exposure: 3150.89113668
- 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_34591cztM0_level2.evt
| modeM0/AS1C07_014T01_9000004950_34591cztM0_level2_quad_clean.evt
|
Size (bytes) | 713,882,880 | 75,240,000 |
Size | 680.8 MB
| 71.8 MB
|
Events in quadrant A | 3,296,990 | 482,006 |
Events in quadrant B | 5,251,477 | 465,009 |
Events in quadrant C | 3,532,630 | 477,893 |
Events in quadrant D | 9,093,583 | 393,179 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 32 | 0 |
B | 0 | 32 | 0 |
C | 0 | 32 | 0 |
D | 0 | 32 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13760 | 3 |
B | 0 | 19779 | 2 |
C | 0 | 14319 | 2 |
D | 0 | 31671 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6598 | 16 | 0.242498% |
B | 6598 | 663 | 10.048500% |
C | 6598 | 10 | 0.151561% |
D | 6598 | 1429 | 21.658078% |
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 | 9765 | 6600 | 7 | 7 | 0.07% | 0.11% | |
B | 9765 | 6600 | 460 | 460 | 4.71% | 6.97% | |
C | 9765 | 6600 | 3 | 3 | 0.03% | 0.05% | |
D | 9765 | 6599 | 1251 | 1251 | 12.81% | 18.96% | |
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 | 9 | 143 | 79576 | 473.34 | 816 | 801 | 166.4 |
A | 10 | 83 | 46398 | 273.98 | 816 | 801 | 166.4 |
A | 4 | 48 | 12901 | 72.7 | 816 | 801 | 166.4 |
B | 5 | 172 | 1773381 | 11901.83 | 778 | 760 | 148.9 |
B | 5 | 255 | 246899 | 1652.64 | 778 | 760 | 148.9 |
B | 0 | 189 | 49433 | 326.8 | 778 | 760 | 148.9 |
C | 15 | 214 | 284744 | 1526.53 | 793 | 801 | 186.0 |
C | 3 | 233 | 56794 | 301.03 | 793 | 801 | 186.0 |
C | 14 | 67 | 49488 | 261.75 | 793 | 801 | 186.0 |
D | 8 | 195 | 3667655 | 18703.61 | 729 | 717 | 196.1 |
D | 2 | 249 | 1787828 | 9115.35 | 729 | 717 | 196.1 |
D | 1 | 52 | 239455 | 1217.71 | 729 | 717 | 196.1 |
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 | |