Observation information
- date-obs: 2024-08-23
- time-obs: 19:45:42.766000000
- date-end: 2024-08-23
- time-end: 20:47:22.747900000
- obs_id: C09_009T01_9000006406
- exposure: 279.667109549
- 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_48159cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48159cztM0_level2_quad_clean.evt
|
Size (bytes) | 234,020,160 | 50,909,760 |
Size | 223.2 MB
| 48.6 MB
|
Events in quadrant A | 4,214,072 | 437,069 |
Events in quadrant B | 659,360 | 21,164 |
Events in quadrant C | 1,704,028 | 428,023 |
Events in quadrant D | 1,791,588 | 391,683 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 74 | 0 |
B | 0 | 74 | 0 |
C | 0 | 74 | 0 |
D | 0 | 76 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15014 | 0 |
B | 0 | 4026 | 0 |
C | 0 | 7715 | 0 |
D | 0 | 7956 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 3700 | 231 | 6.243243% |
B | 3700 | 3700 | 100.000000% |
C | 3700 | 10 | 0.270270% |
D | 3700 | 16 | 0.432432% |
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 | 3700 | 3700 | 58 | 58 | 1.57% | 1.57% | |
B | 3700 | 3689 | 0 | 0 | 0.00% | 0.00% | |
C | 3700 | 3700 | 7 | 7 | 0.19% | 0.19% | |
D | 3700 | 3700 | 13 | 13 | 0.35% | 0.35% | |
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 | 2529631 | 29106.65 | 410 | 404 | 86.9 |
A | 15 | 174 | 70487 | 806.52 | 410 | 404 | 86.9 |
A | 0 | 243 | 11146 | 123.62 | 410 | 404 | 86.9 |
B | 2 | 177 | 510410 | 70551.21 | 25 | 25 | 7.2 |
B | 5 | 32 | 17348 | 2394.58 | 25 | 25 | 7.2 |
B | 4 | 21 | 10603 | 1462.21 | 25 | 25 | 7.2 |
C | 12 | 2 | 59758 | 597.73 | 413 | 415 | 99.3 |
C | 0 | 207 | 18240 | 179.54 | 413 | 415 | 99.3 |
C | 14 | 254 | 8398 | 80.41 | 413 | 415 | 99.3 |
D | 7 | 67 | 50664 | 475.52 | 410 | 397 | 105.7 |
D | 11 | 224 | 31550 | 294.71 | 410 | 397 | 105.7 |
D | 11 | 192 | 29331 | 273.71 | 410 | 397 | 105.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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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. |
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Quadrant-wise count rates
Data is divided into 100 sec bins |
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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 |
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Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
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Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
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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 | |