Observation information
- date-obs: 2024-08-23
- time-obs: 09:33:44.802300000
- date-end: 2024-08-23
- time-end: 11:29:05.792300000
- obs_id: C09_009T01_9000006406
- exposure: 1.28983789682
- 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_48152cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48152cztM0_level2_quad_clean.evt
|
Size (bytes) | 372,320,640 | 78,894,720 |
Size | 355.1 MB
| 75.2 MB
|
Events in quadrant A | 6,385,672 | 679,636 |
Events in quadrant B | 1,062,629 | 180 |
Events in quadrant C | 2,826,451 | 674,436 |
Events in quadrant D | 3,028,800 | 610,599 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23760 | 4 |
B | 0 | 6511 | 1 |
C | 0 | 12692 | 1 |
D | 0 | 13250 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8 | 0 |
B | 0 | 8 | 0 |
C | 0 | 8 | 0 |
D | 0 | 8 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6060 | 215 | 3.547855% |
B | 6060 | 6059 | 99.983498% |
C | 6061 | 92 | 1.517901% |
D | 6061 | 132 | 2.177858% |
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 | 6920 | 6061 | 5 | 5 | 0.07% | 0.08% | |
B | 6919 | 6042 | 0 | 0 | 0.00% | 0.00% | |
C | 6921 | 6062 | 18 | 18 | 0.26% | 0.30% | |
D | 6921 | 6062 | 41 | 41 | 0.59% | 0.68% | |
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 | 3654806 | 24990.12 | 691 | 678 | 146.2 |
A | 13 | 248 | 25954 | 172.86 | 691 | 678 | 146.2 |
A | 0 | 243 | 14467 | 94.3 | 691 | 678 | 146.2 |
B | 2 | 177 | 836174 | 77483.46 | 42 | 41 | 10.8 |
B | 4 | 171 | 31490 | 2914.34 | 42 | 41 | 10.8 |
B | 4 | 21 | 19029 | 1759.6 | 42 | 41 | 10.8 |
C | 12 | 2 | 123686 | 762.02 | 680 | 685 | 161.4 |
C | 14 | 254 | 24134 | 145.27 | 680 | 685 | 161.4 |
C | 1 | 3 | 15494 | 91.75 | 680 | 685 | 161.4 |
D | 13 | 29 | 108596 | 621.6 | 682 | 662 | 173.6 |
D | 12 | 2 | 64644 | 368.48 | 682 | 662 | 173.6 |
D | 13 | 171 | 57163 | 325.4 | 682 | 662 | 173.6 |
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 | |