Observation information
- date-obs: 2024-08-22
- time-obs: 12:31:30.906400000
- date-end: 2024-08-22
- time-end: 14:41:30.894000000
- obs_id: C09_009T01_9000006406
- exposure: 523.770867765
- 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_48140cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48140cztM0_level2_quad_clean.evt
|
Size (bytes) | 687,804,480 | 86,780,160 |
Size | 655.9 MB
| 82.8 MB
|
Events in quadrant A | 7,655,194 | 806,568 |
Events in quadrant B | 1,188,036 | 48,417 |
Events in quadrant C | 3,697,016 | 782,600 |
Events in quadrant D | 12,390,631 | 514,584 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 136 | 0 |
B | 0 | 136 | 0 |
C | 0 | 136 | 0 |
D | 0 | 136 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27560 | 1 |
B | 0 | 7321 | 1 |
C | 0 | 15563 | 1 |
D | 0 | 41418 | 7 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6750 | 313 | 4.637037% |
B | 6751 | 6751 | 100.000000% |
C | 6751 | 178 | 2.636646% |
D | 6750 | 3729 | 55.244444% |
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 | 7800 | 6751 | 32 | 32 | 0.41% | 0.47% | |
B | 7801 | 6730 | 0 | 0 | 0.00% | 0.00% | |
C | 7801 | 6752 | 132 | 132 | 1.69% | 1.95% | |
D | 7800 | 6750 | 3201 | 3201 | 41.04% | 47.42% | |
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 | 4396719 | 26359.88 | 801 | 786 | 166.8 |
A | 13 | 6 | 91962 | 546.73 | 801 | 786 | 166.8 |
A | 13 | 248 | 56643 | 334.94 | 801 | 786 | 166.8 |
B | 2 | 177 | 931015 | 76307.61 | 50 | 48 | 12.2 |
B | 4 | 21 | 21337 | 1744.97 | 50 | 48 | 12.2 |
B | 0 | 200 | 20100 | 1643.58 | 50 | 48 | 12.2 |
C | 10 | 187 | 483291 | 2603.02 | 786 | 792 | 185.4 |
C | 12 | 2 | 99000 | 529.82 | 786 | 792 | 185.4 |
C | 12 | 249 | 20089 | 104.11 | 786 | 792 | 185.4 |
D | 12 | 2 | 9343575 | 63998.42 | 573 | 557 | 146.0 |
D | 2 | 37 | 282616 | 1932.07 | 573 | 557 | 146.0 |
D | 2 | 165 | 192815 | 1316.94 | 573 | 557 | 146.0 |
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 | |