Observation information
- date-obs: 2024-08-22
- time-obs: 22:45:42.853100000
- date-end: 2024-08-23
- time-end: 01:03:55.841800000
- obs_id: C09_009T01_9000006406
- exposure: 590.228116691
- 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_48146cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48146cztM0_level2_quad_clean.evt
|
Size (bytes) | 505,851,840 | 107,576,640 |
Size | 482.4 MB
| 102.6 MB
|
Events in quadrant A | 8,491,873 | 923,048 |
Events in quadrant B | 1,379,294 | 52,887 |
Events in quadrant C | 3,723,168 | 906,757 |
Events in quadrant D | 4,509,873 | 822,845 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 158 | 0 |
B | 0 | 158 | 0 |
C | 0 | 158 | 0 |
D | 0 | 158 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30619 | 2 |
B | 0 | 8480 | 2 |
C | 0 | 16668 | 2 |
D | 0 | 18882 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3 | 0 |
B | 0 | 4 | 0 |
C | 0 | 4 | 0 |
D | 0 | 4 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7880 | 588 | 7.461929% |
B | 7880 | 7880 | 100.000000% |
C | 7880 | 45 | 0.571066% |
D | 7880 | 94 | 1.192893% |
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 | 7895 | 7881 | 18 | 18 | 0.23% | 0.23% | |
B | 7894 | 7852 | 1 | 1 | 0.01% | 0.01% | |
C | 7895 | 7879 | 6 | 6 | 0.08% | 0.08% | |
D | 7895 | 7879 | 64 | 64 | 0.81% | 0.81% | |
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 | 4873658 | 25007.38 | 923 | 905 | 194.9 |
A | 13 | 248 | 24788 | 122.57 | 923 | 905 | 194.9 |
A | 3 | 14 | 16509 | 80.08 | 923 | 905 | 194.9 |
B | 2 | 177 | 1086861 | 81760.96 | 55 | 54 | 13.3 |
B | 0 | 200 | 35512 | 2667.52 | 55 | 54 | 13.3 |
B | 4 | 21 | 21991 | 1650.33 | 55 | 54 | 13.3 |
C | 12 | 2 | 68610 | 305.25 | 927 | 934 | 221.7 |
C | 0 | 207 | 21855 | 94.36 | 927 | 934 | 221.7 |
C | 10 | 187 | 8936 | 36.09 | 927 | 934 | 221.7 |
D | 12 | 2 | 405689 | 1694.58 | 919 | 887 | 238.9 |
D | 2 | 37 | 231852 | 966.87 | 919 | 887 | 238.9 |
D | 11 | 192 | 98660 | 409.3 | 919 | 887 | 238.9 |
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 | |