Observation information
- date-obs: 2024-08-22
- time-obs: 10:55:35.912500000
- date-end: 2024-08-22
- time-end: 12:54:12.904400000
- obs_id: C09_009T01_9000006406
- exposure: 1.13393753767
- sourceid: Crab
- observer: arrao
- ra_pnt: 83.63321
- dec_pnt: 22.01446
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_009T01_9000006406_48139cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48139cztM0_level2_quad_clean.evt
|
Size (bytes) | 425,839,680 | 79,914,240 |
Size | 406.1 MB
| 76.2 MB
|
Events in quadrant A | 6,639,898 | 698,718 |
Events in quadrant B | 1,072,681 | 104 |
Events in quadrant C | 3,203,051 | 687,784 |
Events in quadrant D | 4,359,475 | 600,414 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 128 | 0 |
B | 0 | 128 | 0 |
C | 0 | 128 | 0 |
D | 0 | 128 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24867 | 1 |
B | 0 | 6639 | 1 |
C | 0 | 13852 | 1 |
D | 0 | 17182 | 3 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 9 | 0 |
B | 0 | 9 | 0 |
C | 0 | 9 | 0 |
D | 0 | 9 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6187 | 225 | 3.636658% |
B | 6188 | 6187 | 99.983840% |
C | 6188 | 140 | 2.262443% |
D | 6187 | 460 | 7.434944% |
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 | 7117 | 6188 | 11 | 11 | 0.15% | 0.18% | |
B | 7117 | 6173 | 0 | 0 | 0.00% | 0.00% | |
C | 7118 | 6189 | 95 | 95 | 1.33% | 1.53% | |
D | 7117 | 6188 | 365 | 365 | 5.13% | 5.90% | |
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 | 3796837 | 25314.94 | 715 | 700 | 150.0 |
A | 0 | 31 | 42226 | 276.92 | 715 | 700 | 150.0 |
A | 13 | 248 | 21640 | 139.64 | 715 | 700 | 150.0 |
B | 2 | 177 | 855128 | 76772.58 | 43 | 42 | 11.1 |
B | 0 | 200 | 25939 | 2325.12 | 43 | 42 | 11.1 |
B | 4 | 21 | 9850 | 880.6 | 43 | 42 | 11.1 |
C | 10 | 187 | 357796 | 2123.43 | 704 | 709 | 168.2 |
C | 12 | 2 | 77891 | 458.97 | 704 | 709 | 168.2 |
C | 12 | 249 | 15948 | 90.62 | 704 | 709 | 168.2 |
D | 12 | 2 | 1135369 | 6530.49 | 690 | 668 | 173.8 |
D | 2 | 165 | 284698 | 1634.66 | 690 | 668 | 173.8 |
D | 2 | 37 | 159837 | 916.06 | 690 | 668 | 173.8 |
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 |
|
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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 | |