Observation information
- date-obs: 2018-04-12
- time-obs: 07:28:11.645900000
- date-end: 2018-04-12
- time-end: 08:27:34.641900000
- obs_id: G08_036T01_9000002034
- exposure: 1384.6659408
- sourceid: 4U 1820-30
- observer: jsyadav
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_036T01_9000002034_13724cztM0_level2.evt
| modeM0/AS1G08_036T01_9000002034_13724cztM0_level2_quad_clean.evt
|
| Size (bytes) | 243,172,800 | 33,428,160 |
| Size | 231.9 MB
| 31.9 MB
|
| Events in quadrant A | 1,641,944 | 193,434 |
| Events in quadrant B | 1,960,620 | 200,841 |
| Events in quadrant C | 1,638,297 | 186,116 |
| Events in quadrant D | 1,879,485 | 178,566 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7159 | 0 |
| B | 0 | 8084 | 0 |
| C | 0 | 7141 | 0 |
| D | 0 | 7717 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 72 | 0 |
| B | 0 | 72 | 0 |
| C | 0 | 72 | 0 |
| D | 0 | 72 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3564 | 1 | 0.028058% |
| B | 3564 | 13 | 0.364759% |
| C | 3564 | 1 | 0.028058% |
| D | 3564 | 13 | 0.364759% |
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 | 3565 | 3565 | 0 | 0 | 0.00% | 0.00% |  |
| B | 3565 | 3565 | 4 | 4 | 0.11% | 0.11% |  |
| C | 3565 | 3565 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3565 | 3565 | 10 | 10 | 0.28% | 0.28% |  |
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 | 1 | 162 | 10186 | 112.62 | 422 | 413 | 86.8 |
| A | 1 | 178 | 4092 | 42.4 | 422 | 413 | 86.8 |
| A | 0 | 226 | 3862 | 39.75 | 422 | 413 | 86.8 |
| B | 10 | 244 | 227582 | 2826.04 | 416 | 407 | 80.4 |
| B | 4 | 173 | 37933 | 466.82 | 416 | 407 | 80.4 |
| B | 0 | 219 | 33427 | 410.77 | 416 | 407 | 80.4 |
| C | 3 | 233 | 54731 | 575.86 | 405 | 407 | 94.3 |
| C | 13 | 61 | 3091 | 28.45 | 405 | 407 | 94.3 |
| C | 4 | 254 | 1759 | 14.33 | 405 | 407 | 94.3 |
| D | 8 | 195 | 159548 | 1440.53 | 406 | 399 | 110.5 |
| D | 5 | 222 | 108917 | 982.25 | 406 | 399 | 110.5 |
| D | 10 | 157 | 30709 | 274.35 | 406 | 399 | 110.5 |
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 |  |