Observation information
- date-obs: 2024-08-23
- time-obs: 04:17:08.827500000
- date-end: 2024-08-23
- time-end: 09:47:28.800800000
- obs_id: C09_009T01_9000006406
- exposure: 1464.55365664
- 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_48151cztM0_level2.fits
| modeM0/AS1C09_009T01_9000006406_48151cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,143,097,920 | 242,504,640 |
Size | 1.1 GB
| 231.3 MB
|
Events in quadrant A | 19,092,138 | 2,071,630 |
Events in quadrant B | 3,212,442 | 130,720 |
Events in quadrant C | 8,340,821 | 2,039,184 |
Events in quadrant D | 10,227,954 | 1,826,905 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 376 | 0 |
B | 0 | 376 | 0 |
C | 0 | 376 | 0 |
D | 0 | 376 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 69470 | 49 |
B | 0 | 19703 | 6 |
C | 0 | 38129 | 15 |
D | 0 | 43779 | 24 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14 | 0 |
B | 0 | 14 | 0 |
C | 0 | 14 | 0 |
D | 0 | 14 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18333 | 631 | 3.441881% |
B | 18346 | 18346 | 100.000000% |
C | 18341 | 144 | 0.785126% |
D | 18337 | 478 | 2.606751% |
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 | 19820 | 18348 | 24 | 24 | 0.12% | 0.13% | |
B | 19820 | 18281 | 1 | 1 | 0.01% | 0.01% | |
C | 19820 | 18350 | 23 | 23 | 0.12% | 0.13% | |
D | 19821 | 18347 | 214 | 214 | 1.08% | 1.17% | |
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 | 10832778 | 24883.99 | 2073 | 2032 | 435.2 |
A | 13 | 248 | 98534 | 221.72 | 2073 | 2032 | 435.2 |
A | 0 | 31 | 69999 | 156.16 | 2073 | 2032 | 435.2 |
B | 2 | 177 | 2531022 | 84974.27 | 135 | 132 | 29.8 |
B | 4 | 21 | 101173 | 3392.44 | 135 | 132 | 29.8 |
B | 4 | 171 | 30411 | 1016.61 | 135 | 132 | 29.8 |
C | 14 | 254 | 178192 | 361.65 | 2050 | 2068 | 487.0 |
C | 12 | 2 | 88237 | 176.94 | 2050 | 2068 | 487.0 |
C | 1 | 3 | 51175 | 100.84 | 2050 | 2068 | 487.0 |
D | 2 | 165 | 1220507 | 2357.66 | 2040 | 1979 | 516.8 |
D | 2 | 37 | 305519 | 587.3 | 2040 | 1979 | 516.8 |
D | 11 | 192 | 216661 | 415.37 | 2040 | 1979 | 516.8 |
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 | |