Observation information
- date-obs: 2017-03-20
- time-obs: 18:10:21.621600000
- date-end: 2017-03-21
- time-end: 01:54:56.621000000
- obs_id: G06_028T01_9000001094
- exposure: 17555.9408469
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G06_028T01_9000001094cztM0_level2.evt
| modeM0/AS1G06_028T01_9000001094cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,906,551,360 | 375,923,520 |
Size | 1.8 GB
| 358.5 MB
|
Events in quadrant A | 14,341,535 | 2,417,483 |
Events in quadrant B | 12,334,197 | 2,508,166 |
Events in quadrant C | 12,673,367 | 2,549,972 |
Events in quadrant D | 16,858,417 | 2,345,997 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 462 | 0 |
B | 0 | 462 | 0 |
C | 0 | 462 | 0 |
D | 0 | 462 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 52 | 0 |
B | 0 | 52 | 0 |
C | 0 | 52 | 0 |
D | 0 | 52 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 57968 | 0 |
B | 0 | 51767 | 0 |
C | 0 | 52530 | 0 |
D | 0 | 65518 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 22746 | 510 | 2.242152% |
B | 22746 | 540 | 2.374044% |
C | 22746 | 395 | 1.736569% |
D | 22746 | 1686 | 7.412292% |
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 | 27876 | 22750 | 93 | 93 | 0.33% | 0.41% | ![](noisytime.Q0.png) |
B | 27876 | 22750 | 150 | 150 | 0.54% | 0.66% | ![](noisytime.Q1.png) |
C | 27876 | 22750 | 77 | 77 | 0.28% | 0.34% | ![](noisytime.Q2.png) |
D | 27876 | 22750 | 1205 | 1205 | 4.32% | 5.30% | ![](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 | 0 | 128 | 2513732 | 4460.23 | 2803 | 2752 | 563.0 |
A | 15 | 239 | 654842 | 1158.3 | 2803 | 2752 | 563.0 |
A | 4 | 2 | 309751 | 545.32 | 2803 | 2752 | 563.0 |
B | 4 | 239 | 706537 | 1334.15 | 2845 | 2786 | 527.5 |
B | 5 | 250 | 212214 | 397.03 | 2845 | 2786 | 527.5 |
B | 11 | 51 | 144469 | 268.6 | 2845 | 2786 | 527.5 |
C | 1 | 16 | 1702440 | 2650.13 | 2805 | 2838 | 641.3 |
C | 8 | 143 | 22724 | 31.01 | 2805 | 2838 | 641.3 |
C | 13 | 61 | 21223 | 28.67 | 2805 | 2838 | 641.3 |
D | 1 | 83 | 4417344 | 6127.27 | 2677 | 2632 | 720.5 |
D | 1 | 52 | 1679850 | 2327.85 | 2677 | 2632 | 720.5 |
D | 12 | 233 | 224592 | 308.06 | 2677 | 2632 | 720.5 |
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) |