Observation information
- date-obs: 2018-01-11
- time-obs: 16:48:08.061900000
- date-end: 2018-01-12
- time-end: 16:42:21.042300000
- obs_id: A04_104T02_9000001838
- exposure: 71997.9918082
- sourceid: NGC 3516
- observer: KISHOR_NBU_APDC
- ra_pnt: 166.6979
- dec_pnt: 72.56853
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_104T02_9000001838cztM0_level2_bc.evt
| modeM0/AS1A04_104T02_9000001838cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,928,201,920 | 1,330,738,560 |
Size | 3.7 GB
| 1.2 GB
|
Events in quadrant A | 22,583,388 | 9,113,096 |
Events in quadrant B | 44,823,722 | 8,527,696 |
Events in quadrant C | 14,523,078 | 9,130,579 |
Events in quadrant D | 31,987,258 | 8,444,397 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 113 | 0 |
B | 0 | 113 | 0 |
C | 0 | 113 | 0 |
D | 0 | 113 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 193701 | 0 |
B | 0 | 254790 | 0 |
C | 0 | 151369 | 0 |
D | 0 | 213514 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1510 | 0 |
B | 0 | 1510 | 0 |
C | 0 | 1510 | 0 |
D | 0 | 1510 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 74214 | 2327 | 3.135527% |
B | 74178 | 13625 | 18.367980% |
C | 74214 | 342 | 0.460829% |
D | 74214 | 5350 | 7.208882% |
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 | 86055 | 74210 | 20 | 20 | 0.02% | 0.03% | ![](noisytime.Q0.png) |
B | 86055 | 74160 | 5960 | 5960 | 6.93% | 8.04% | ![](noisytime.Q1.png) |
C | 86055 | 74208 | 3 | 3 | 0.00% | 0.00% | ![](noisytime.Q2.png) |
D | 86055 | 74206 | 1279 | 1279 | 1.49% | 1.72% | ![](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 | 13 | 251 | 4495226 | 5602.31 | 3671 | 3612 | 801.7 |
A | 1 | 162 | 1421997 | 1769.13 | 3671 | 3612 | 801.7 |
A | 14 | 237 | 813748 | 1010.47 | 3671 | 3612 | 801.7 |
B | 2 | 32 | 17930613 | 27102.2 | 3459 | 3367 | 661.5 |
B | 2 | 48 | 7008705 | 10590.59 | 3459 | 3367 | 661.5 |
B | 4 | 239 | 3692096 | 5576.58 | 3459 | 3367 | 661.5 |
C | 14 | 234 | 174854 | 213.88 | 3606 | 3562 | 800.9 |
C | 15 | 208 | 168891 | 206.43 | 3606 | 3562 | 800.9 |
C | 6 | 96 | 26905 | 29.15 | 3606 | 3562 | 800.9 |
D | 1 | 52 | 13121982 | 15693.7 | 3522 | 3392 | 835.9 |
D | 10 | 199 | 1322847 | 1578.46 | 3522 | 3392 | 835.9 |
D | 10 | 157 | 1045496 | 1246.66 | 3522 | 3392 | 835.9 |
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) |