Observation information
- date-obs: 2024-08-22
- time-obs: 21:00:42.862400000
- date-end: 2024-08-22
- time-end: 23:18:21.850400000
- obs_id: C09_009T01_9000006406
- exposure: 540.152058482
- 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_48145cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48145cztM0_level2_quad_clean.evt
|
Size (bytes) | 460,434,240 | 97,223,040 |
Size | 439.1 MB
| 92.7 MB
|
Events in quadrant A | 7,936,919 | 831,824 |
Events in quadrant B | 1,254,317 | 49,423 |
Events in quadrant C | 3,393,971 | 820,861 |
Events in quadrant D | 3,900,703 | 745,220 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 144 | 0 |
B | 0 | 144 | 0 |
C | 0 | 144 | 0 |
D | 0 | 144 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28451 | 4 |
B | 0 | 7681 | 2 |
C | 0 | 15010 | 2 |
D | 0 | 16453 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7075 | 543 | 7.674912% |
B | 7075 | 7075 | 100.000000% |
C | 7075 | 68 | 0.961131% |
D | 7075 | 76 | 1.074205% |
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 | 7745 | 7076 | 61 | 61 | 0.79% | 0.86% | |
B | 7744 | 7056 | 1 | 1 | 0.01% | 0.01% | |
C | 7745 | 7075 | 23 | 23 | 0.30% | 0.33% | |
D | 7745 | 7075 | 17 | 17 | 0.22% | 0.24% | |
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 | 4695322 | 27526.94 | 812 | 796 | 170.5 |
A | 13 | 248 | 65428 | 378.97 | 812 | 796 | 170.5 |
A | 3 | 14 | 15757 | 87.72 | 812 | 796 | 170.5 |
B | 2 | 177 | 975290 | 79431.24 | 50 | 49 | 12.3 |
B | 0 | 200 | 33873 | 2754.89 | 50 | 49 | 12.3 |
B | 4 | 21 | 22736 | 1847.81 | 50 | 49 | 12.3 |
C | 10 | 187 | 106291 | 540.45 | 820 | 826 | 195.1 |
C | 0 | 207 | 47137 | 237.32 | 820 | 826 | 195.1 |
C | 12 | 2 | 36356 | 182.07 | 820 | 826 | 195.1 |
D | 2 | 165 | 246707 | 1176.27 | 817 | 791 | 209.1 |
D | 12 | 2 | 127923 | 608.1 | 817 | 791 | 209.1 |
D | 2 | 37 | 112703 | 535.3 | 817 | 791 | 209.1 |
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 |
|
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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 | |