Observation information
- date-obs: 2018-01-12
- time-obs: 10:57:36.293100000
- date-end: 2018-01-12
- time-end: 13:09:53.034200000
- obs_id: A04_104T02_9000001838
- exposure: 7690.81879802
- 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_9000001838_12394cztM0_level2.evt
| modeM0/AS1A04_104T02_9000001838_12394cztM0_level2_quad_clean.evt
|
| Size (bytes) | 628,574,400 | 138,988,800 |
| Size | 599.5 MB
| 132.6 MB
|
| Events in quadrant A | 5,892,703 | 917,552 |
| Events in quadrant B | 4,516,183 | 946,798 |
| Events in quadrant C | 3,508,360 | 925,196 |
| Events in quadrant D | 4,591,230 | 877,949 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22790 | 3 |
| B | 0 | 18497 | 2 |
| C | 0 | 16110 | 2 |
| D | 0 | 19056 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7797 | 538 | 6.900090% |
| B | 7797 | 359 | 4.604335% |
| C | 7797 | 103 | 1.321021% |
| D | 7797 | 292 | 3.745030% |
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 | 7938 | 7798 | 229 | 229 | 2.88% | 2.94% |  |
| B | 7938 | 7798 | 94 | 94 | 1.18% | 1.21% |  |
| C | 7938 | 7799 | 7 | 7 | 0.09% | 0.09% |  |
| D | 7938 | 7798 | 181 | 181 | 2.28% | 2.32% |  |
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 | 1335256 | 7413.59 | 891 | 872 | 180.0 |
| A | 14 | 237 | 317168 | 1757.28 | 891 | 872 | 180.0 |
| A | 1 | 162 | 260005 | 1439.69 | 891 | 872 | 180.0 |
| B | 4 | 239 | 544390 | 3174.76 | 900 | 878 | 171.2 |
| B | 3 | 64 | 185024 | 1075.63 | 900 | 878 | 171.2 |
| B | 10 | 245 | 62993 | 362.83 | 900 | 878 | 171.2 |
| C | 15 | 208 | 90033 | 447.0 | 868 | 869 | 199.5 |
| C | 14 | 234 | 10151 | 46.53 | 868 | 869 | 199.5 |
| C | 8 | 112 | 9167 | 41.6 | 868 | 869 | 199.5 |
| D | 1 | 52 | 847091 | 4085.31 | 860 | 833 | 207.1 |
| D | 13 | 104 | 137323 | 658.91 | 860 | 833 | 207.1 |
| D | 10 | 199 | 96977 | 464.14 | 860 | 833 | 207.1 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
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. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |