Observation information
- date-obs: 2017-07-30
- time-obs: 14:50:46.412700000
- date-end: 2017-07-30
- time-end: 15:13:54.041300000
- obs_id: A03_107T01_9000001418
- exposure: 2848.5271761
- sourceid: 4U 1820-30
- observer: graman
- ra_pnt: 275.9188
- dec_pnt: -30.36128
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A03_107T01_9000001418cztM0_level2.evt
| modeM0/AS1A03_107T01_9000001418cztM0_level2_quad_clean.evt
|
Size (bytes) | 258,609,600 | 53,009,280 |
Size | 246.6 MB
| 50.6 MB
|
Events in quadrant A | 1,587,117 | 352,351 |
Events in quadrant B | 2,322,111 | 352,772 |
Events in quadrant C | 1,272,484 | 358,128 |
Events in quadrant D | 2,452,581 | 335,414 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 6634 | 0 |
B | 0 | 8909 | 0 |
C | 0 | 5841 | 0 |
D | 0 | 9357 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30 | 0 |
B | 0 | 30 | 0 |
C | 0 | 30 | 0 |
D | 0 | 30 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 58 | 0 |
B | 0 | 58 | 0 |
C | 0 | 58 | 0 |
D | 0 | 58 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 2891 | 47 | 1.625735% |
B | 2891 | 115 | 3.977862% |
C | 2891 | 2 | 0.069180% |
D | 2891 | 119 | 4.116223% |
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 | 2891 | 2891 | 36 | 36 | 1.25% | 1.25% | ![](noisytime.Q0.png) |
B | 2891 | 2891 | 81 | 81 | 2.80% | 2.80% | ![](noisytime.Q1.png) |
C | 2891 | 2891 | 0 | 0 | 0.00% | 0.00% | ![](noisytime.Q2.png) |
D | 2891 | 2891 | 113 | 113 | 3.91% | 3.91% | ![](noisytime.Q3.png) |
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 | 15 | 239 | 199324 | 2817.09 | 339 | 332 | 70.6 |
A | 15 | 174 | 78672 | 1109.04 | 339 | 332 | 70.6 |
A | 8 | 15 | 3355 | 42.8 | 339 | 332 | 70.6 |
B | 4 | 81 | 735585 | 11129.57 | 336 | 329 | 66.1 |
B | 4 | 239 | 172231 | 2602.08 | 336 | 329 | 66.1 |
B | 0 | 214 | 52902 | 795.8 | 336 | 329 | 66.1 |
C | 13 | 61 | 2420 | 27.12 | 325 | 327 | 77.2 |
C | 14 | 234 | 1589 | 16.35 | 325 | 327 | 77.2 |
C | 14 | 67 | 1426 | 14.24 | 325 | 327 | 77.2 |
D | 2 | 16 | 842328 | 9940.97 | 325 | 317 | 84.7 |
D | 12 | 233 | 96681 | 1137.7 | 325 | 317 | 84.7 |
D | 1 | 52 | 88339 | 1039.21 | 325 | 317 | 84.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
![](dph.Q0.png) |
![](dph.Q1.png) |
Quadrant B |
Quadrant D |
![](dph.Q3.png) |
![](dph.Q2.png) |
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. |
![](countrate_histogram.png) |
![](imageFULL_DPI.png) |
Quadrant-wise count rates
Data is divided into 100 sec bins |
![](countrate_lightcurve.png) |
![](imageFULL_DPI.png) |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
![](countrate_modulerates.Q0.png) |
![](imageQ0.png) |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
![](countrate_modulerates.Q1.png) |
![](imageQ1.png) |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
![](countrate_modulerates.Q2.png) |
![](imageQ2.png) |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
![](countrate_modulerates.Q3.png) |
![](imageQ3.png) |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor | ![](hkCZTHV_Monitor.png) |
D_VDD | ![](hkDVDD.png) |
Temperature 1 | ![](hkTemperature1.png) |
Veto HV Monitor | ![](hkVetoHV_Monitor.png) |
Veto LLD | ![](hkVetoLLD.png) |
Alpha Counter | ![](hk_AlphaCounter.png) |
_CPM_Rate | ![](hk_CPM_Rate.png) |
CZT Counter | ![](hk_CZT_Counter.png) |
+2.5 Volts monitor | ![](hk_POS_2DOT5V_Monitor.png) |
+5 Volts monitor | ![](hk_POS_5V_Monitor.png) |
_ROLL_ROT | ![](hk_ROLL_ROT.png) |
_Roll_DEC | ![](hk_Roll_DEC.png) |
_Roll_RA | ![](hk_Roll_RA.png) |
Veto Counter | ![](hk_VetoCounter.png) |