Observation information
- date-obs: 2022-02-20
- time-obs: 08:07:05.494400000
- date-end: 2022-02-20
- time-end: 10:18:42.496800000
- obs_id: C07_014T01_9000004950
- exposure: 3928.8048808
- 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_34596cztM0_level2.evt
| modeM0/AS1C07_014T01_9000004950_34596cztM0_level2_quad_clean.evt
|
Size (bytes) | 561,191,040 | 95,849,280 |
Size | 535.2 MB
| 91.4 MB
|
Events in quadrant A | 2,733,754 | 674,997 |
Events in quadrant B | 3,715,121 | 657,288 |
Events in quadrant C | 2,969,874 | 655,215 |
Events in quadrant D | 7,242,064 | 567,082 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 100 | 0 |
B | 0 | 100 | 0 |
C | 0 | 100 | 0 |
D | 0 | 100 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29 | 0 |
B | 0 | 29 | 0 |
C | 0 | 29 | 0 |
D | 0 | 30 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10931 | 3 |
B | 0 | 14231 | 2 |
C | 0 | 11875 | 2 |
D | 0 | 24992 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4965 | 7 | 0.140987% |
B | 4965 | 372 | 7.492447% |
C | 4965 | 30 | 0.604230% |
D | 4965 | 651 | 13.111782% |
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 | 7086 | 4966 | 0 | 0 | 0.00% | 0.00% | |
B | 7086 | 4966 | 254 | 254 | 3.58% | 5.11% | |
C | 7086 | 4966 | 17 | 17 | 0.24% | 0.34% | |
D | 7086 | 4966 | 778 | 778 | 10.98% | 15.67% | |
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 | 42867 | 303.8 | 690 | 682 | 138.9 |
A | 9 | 143 | 17763 | 123.01 | 690 | 682 | 138.9 |
A | 13 | 6 | 10997 | 74.28 | 690 | 682 | 138.9 |
B | 5 | 172 | 931733 | 7433.63 | 663 | 653 | 125.3 |
B | 0 | 190 | 69140 | 546.79 | 663 | 653 | 125.3 |
B | 4 | 232 | 32357 | 253.12 | 663 | 653 | 125.3 |
C | 15 | 214 | 214906 | 1422.35 | 651 | 660 | 150.6 |
C | 0 | 207 | 85044 | 560.22 | 651 | 660 | 150.6 |
C | 0 | 10 | 78634 | 517.66 | 651 | 660 | 150.6 |
D | 8 | 195 | 3720387 | 24046.81 | 631 | 616 | 154.7 |
D | 13 | 249 | 208160 | 1341.69 | 631 | 616 | 154.7 |
D | 1 | 52 | 205663 | 1325.55 | 631 | 616 | 154.7 |
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 | |