Observation information
- date-obs: 2024-08-23
- time-obs: 02:46:08.834600000
- date-end: 2024-08-23
- time-end: 15:01:13.774700000
- obs_id: C09_009T01_9000006406
- exposure: 2.34271681309
- 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_48155cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48155cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,551,956,480 | 515,070,720 |
Size | 2.4 GB
| 491.2 MB
|
Events in quadrant A | 42,488,009 | 4,446,337 |
Events in quadrant B | 7,057,676 | 320 |
Events in quadrant C | 19,144,647 | 4,435,195 |
Events in quadrant D | 22,669,916 | 3,992,137 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 808 | 0 |
B | 0 | 808 | 0 |
C | 0 | 808 | 0 |
D | 0 | 808 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 154264 | 6 |
B | 0 | 42945 | 6 |
C | 0 | 85002 | 6 |
D | 0 | 95482 | 6 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 43 | 0 |
B | 0 | 43 | 0 |
C | 0 | 43 | 0 |
D | 0 | 43 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 39600 | 1602 | 4.045455% |
B | 39601 | 39599 | 99.994950% |
C | 39601 | 565 | 1.426732% |
D | 39601 | 1077 | 2.719628% |
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 | 44105 | 39607 | 164 | 164 | 0.37% | 0.41% | |
B | 44105 | 39459 | 14 | 14 | 0.03% | 0.04% | |
C | 44106 | 39607 | 202 | 202 | 0.46% | 0.51% | |
D | 44106 | 39607 | 534 | 534 | 1.21% | 1.35% | |
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 | 24253267 | 25478.73 | 4555 | 4466 | 951.7 |
A | 13 | 248 | 270991 | 280.04 | 4555 | 4466 | 951.7 |
A | 0 | 31 | 143551 | 146.14 | 4555 | 4466 | 951.7 |
B | 2 | 177 | 5455710 | 90895.53 | 287 | 280 | 60.0 |
B | 4 | 171 | 240001 | 3994.11 | 287 | 280 | 60.0 |
B | 4 | 21 | 148102 | 2462.93 | 287 | 280 | 60.0 |
C | 14 | 254 | 707758 | 662.92 | 4487 | 4529 | 1060.8 |
C | 12 | 2 | 660038 | 617.93 | 4487 | 4529 | 1060.8 |
C | 0 | 207 | 120319 | 109.15 | 4487 | 4529 | 1060.8 |
D | 2 | 165 | 1295607 | 1138.66 | 4479 | 4344 | 1134.0 |
D | 12 | 233 | 1266255 | 1112.78 | 4479 | 4344 | 1134.0 |
D | 12 | 2 | 1016447 | 892.49 | 4479 | 4344 | 1134.0 |
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. |
|
|
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 |
|
|
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 | |