Observation information
- date-obs: 2020-08-13
- time-obs: 02:24:07.625700000
- date-end: 2020-08-14
- time-end: 21:11:05.513600000
- obs_id: A09_088T01_9000003812
- exposure: 95250.4386369
- sourceid: NGC 1261
- observer: sharmila
- ra_pnt: 48.06754
- dec_pnt: -55.21622
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_088T01_9000003812cztM0_level2_bc.evt
| modeM0/AS1A09_088T01_9000003812cztM0_level2_quad_clean.evt
|
Size (bytes) | 8,315,274,240 | 1,960,176,960 |
Size | 7.7 GB
| 1.8 GB
|
Events in quadrant A | 30,851,613 | 13,254,704 |
Events in quadrant B | 28,718,585 | 13,630,400 |
Events in quadrant C | 81,830,754 | 11,884,156 |
Events in quadrant D | 101,404,747 | 11,494,376 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2710 | 0 |
B | 0 | 2710 | 0 |
C | 0 | 2710 | 0 |
D | 0 | 2710 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 211 | 0 |
B | 0 | 211 | 0 |
C | 0 | 211 | 0 |
D | 0 | 211 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 285031 | 0 |
B | 0 | 277263 | 0 |
C | 0 | 508408 | 0 |
D | 0 | 568487 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 132749 | 2213 | 1.667056% |
B | 132749 | 1723 | 1.297938% |
C | 132749 | 27635 | 20.817483% |
D | 132749 | 31645 | 23.838221% |
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 | 154019 | 132748 | 176 | 176 | 0.11% | 0.13% | ![](noisytime.Q0.png) |
B | 154019 | 132745 | 15 | 15 | 0.01% | 0.01% | ![](noisytime.Q1.png) |
C | 154019 | 132738 | 722 | 722 | 0.47% | 0.54% | ![](noisytime.Q2.png) |
D | 154019 | 132708 | 5462 | 5462 | 3.55% | 4.12% | ![](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 | 13 | 2938237 | 1889.32 | 7197 | 7084 | 1551.4 |
A | 13 | 254 | 205777 | 128.07 | 7197 | 7084 | 1551.4 |
A | 6 | 16 | 92300 | 54.93 | 7197 | 7084 | 1551.4 |
B | 0 | 230 | 513412 | 369.08 | 7320 | 7165 | 1371.6 |
B | 0 | 245 | 115500 | 78.98 | 7320 | 7165 | 1371.6 |
B | 5 | 172 | 60763 | 39.08 | 7320 | 7165 | 1371.6 |
C | 3 | 233 | 53932310 | 35376.73 | 6408 | 6400 | 1524.3 |
C | 2 | 16 | 2060477 | 1347.53 | 6408 | 6400 | 1524.3 |
C | 4 | 254 | 1100344 | 717.65 | 6408 | 6400 | 1524.3 |
D | 7 | 80 | 49436259 | 33571.63 | 6319 | 6149 | 1472.4 |
D | 1 | 52 | 23732222 | 16114.12 | 6319 | 6149 | 1472.4 |
D | 11 | 176 | 2213944 | 1499.48 | 6319 | 6149 | 1472.4 |
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) |