Observation information
- date-obs: 2020-03-31
- time-obs: 19:01:22.861100000
- date-end: 2020-04-02
- time-end: 15:07:22.754000000
- obs_id: A08_008T01_9000003596
- exposure: 96557.3594807
- sourceid: LMC X-1
- observer: vivek
- ra_pnt: 84.91179
- dec_pnt: -69.7432
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A08_008T01_9000003596cztM0_level2_bc.evt
| modeM0/AS1A08_008T01_9000003596cztM0_level2_quad_clean.evt
|
Size (bytes) | 6,497,648,640 | 1,937,534,400 |
Size | 6.1 GB
| 1.8 GB
|
Events in quadrant A | 27,885,168 | 13,097,341 |
Events in quadrant B | 27,757,344 | 13,354,575 |
Events in quadrant C | 89,672,217 | 11,690,554 |
Events in quadrant D | 43,237,308 | 12,241,849 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1316 | 0 |
B | 0 | 1316 | 0 |
C | 0 | 1316 | 0 |
D | 0 | 1316 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 269281 | 0 |
B | 0 | 268817 | 0 |
C | 0 | 462023 | 0 |
D | 0 | 320270 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 205 | 0 |
B | 0 | 208 | 0 |
C | 0 | 208 | 0 |
D | 0 | 208 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 129557 | 1547 | 1.194069% |
B | 129557 | 1687 | 1.302130% |
C | 129557 | 22876 | 17.657093% |
D | 129556 | 4591 | 3.543641% |
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 | 158298 | 129560 | 89 | 89 | 0.06% | 0.07% | ![](noisytime.Q0.png) |
B | 158298 | 129560 | 4 | 4 | 0.00% | 0.00% | ![](noisytime.Q1.png) |
C | 158298 | 129562 | 11350 | 11350 | 7.17% | 8.76% | ![](noisytime.Q2.png) |
D | 158298 | 129559 | 933 | 933 | 0.59% | 0.72% | ![](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 | 6 | 10 | 1245056 | 825.56 | 6899 | 6782 | 1499.9 |
A | 13 | 254 | 198355 | 127.72 | 6899 | 6782 | 1499.9 |
A | 0 | 226 | 43940 | 24.77 | 6899 | 6782 | 1499.9 |
B | 4 | 200 | 266112 | 197.2 | 6984 | 6823 | 1314.8 |
B | 15 | 33 | 225908 | 166.63 | 6984 | 6823 | 1314.8 |
B | 0 | 190 | 188220 | 137.96 | 6984 | 6823 | 1314.8 |
C | 7 | 247 | 63850178 | 43369.89 | 6220 | 6190 | 1472.1 |
C | 2 | 16 | 1683522 | 1139.43 | 6220 | 6190 | 1472.1 |
C | 7 | 226 | 147523 | 96.01 | 6220 | 6190 | 1472.1 |
D | 1 | 52 | 9821057 | 6326.33 | 6680 | 6452 | 1551.4 |
D | 9 | 35 | 2266879 | 1457.03 | 6680 | 6452 | 1551.4 |
D | 12 | 233 | 2217935 | 1425.49 | 6680 | 6452 | 1551.4 |
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) |