Observation information
- date-obs: 2024-08-22
- time-obs: 15:52:22.888500000
- date-end: 2024-08-22
- time-end: 18:07:53.876900000
- obs_id: C09_009T01_9000006406
- exposure: 1.2965182066
- 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_48142cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48142cztM0_level2_quad_clean.evt
|
Size (bytes) | 489,697,920 | 89,784,000 |
Size | 467.0 MB
| 85.6 MB
|
Events in quadrant A | 7,702,289 | 785,201 |
Events in quadrant B | 1,154,079 | 160 |
Events in quadrant C | 3,400,124 | 792,360 |
Events in quadrant D | 5,354,291 | 683,248 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 134 | 0 |
C | 0 | 134 | 0 |
D | 0 | 134 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27432 | 3 |
B | 0 | 7098 | 2 |
C | 0 | 14313 | 2 |
D | 0 | 20306 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 16 | 0 |
C | 0 | 16 | 0 |
D | 0 | 16 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6557 | 445 | 6.786640% |
B | 6557 | 6556 | 99.984749% |
C | 6557 | 126 | 1.921610% |
D | 6557 | 566 | 8.631996% |
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 | 7737 | 6558 | 100 | 100 | 1.29% | 1.52% | |
B | 7737 | 6535 | 1 | 1 | 0.01% | 0.02% | |
C | 7737 | 6558 | 49 | 49 | 0.63% | 0.75% | |
D | 7737 | 6558 | 447 | 447 | 5.78% | 6.82% | |
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 | 4520885 | 26894.76 | 805 | 790 | 168.1 |
A | 10 | 248 | 27372 | 158.16 | 805 | 790 | 168.1 |
A | 3 | 14 | 20429 | 116.85 | 805 | 790 | 168.1 |
B | 2 | 177 | 904988 | 76516.73 | 47 | 46 | 11.8 |
B | 4 | 21 | 30759 | 2596.92 | 47 | 46 | 11.8 |
B | 0 | 200 | 13134 | 1106.65 | 47 | 46 | 11.8 |
C | 12 | 2 | 237542 | 1253.77 | 799 | 806 | 188.8 |
C | 12 | 249 | 22918 | 117.11 | 799 | 806 | 188.8 |
C | 11 | 16 | 16559 | 83.43 | 799 | 806 | 188.8 |
D | 12 | 2 | 1329542 | 6775.82 | 781 | 759 | 196.1 |
D | 2 | 37 | 434483 | 2211.67 | 781 | 759 | 196.1 |
D | 2 | 165 | 173568 | 881.2 | 781 | 759 | 196.1 |
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 |
|
|
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 | |