Observation information
- date-obs: 2018-04-05
- time-obs: 02:49:55.936200000
- date-end: 2018-04-05
- time-end: 05:07:59.933500000
- obs_id: G08_044T01_9000002014
- exposure: 4593.04646929
- sourceid: 4U 1957+115
- observer: jsyadav
- ra_pnt: 299.8509
- dec_pnt: 11.709
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_044T01_9000002014_13618cztM0_level2.evt
| modeM0/AS1G08_044T01_9000002014_13618cztM0_level2_quad_clean.evt
|
| Size (bytes) | 481,783,680 | 102,706,560 |
| Size | 459.5 MB
| 97.9 MB
|
| Events in quadrant A | 3,308,043 | 680,186 |
| Events in quadrant B | 3,615,424 | 677,748 |
| Events in quadrant C | 3,300,008 | 654,923 |
| Events in quadrant D | 3,918,663 | 636,757 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14004 | 3 |
| B | 0 | 14986 | 2 |
| C | 0 | 13942 | 2 |
| D | 0 | 16099 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6612 | 53 | 0.801573% |
| B | 6612 | 82 | 1.240169% |
| C | 6612 | 27 | 0.408348% |
| D | 6612 | 64 | 0.967937% |
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 | 7848 | 6614 | 11 | 11 | 0.14% | 0.17% |  |
| B | 7848 | 6614 | 7 | 7 | 0.09% | 0.11% |  |
| C | 7848 | 6614 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7848 | 6614 | 49 | 49 | 0.62% | 0.74% |  |
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 | 3 | 0 | 55248 | 326.43 | 836 | 821 | 166.7 |
| A | 15 | 69 | 26928 | 156.58 | 836 | 821 | 166.7 |
| A | 1 | 162 | 9015 | 49.14 | 836 | 821 | 166.7 |
| B | 0 | 219 | 185411 | 1176.68 | 835 | 816 | 156.9 |
| B | 0 | 189 | 59516 | 374.18 | 835 | 816 | 156.9 |
| B | 10 | 244 | 26498 | 163.7 | 835 | 816 | 156.9 |
| C | 3 | 233 | 161477 | 865.99 | 804 | 809 | 185.5 |
| C | 13 | 61 | 5921 | 27.55 | 804 | 809 | 185.5 |
| C | 14 | 234 | 4038 | 17.4 | 804 | 809 | 185.5 |
| D | 5 | 222 | 407488 | 2157.79 | 799 | 779 | 188.5 |
| D | 8 | 195 | 295927 | 1565.91 | 799 | 779 | 188.5 |
| D | 12 | 6 | 54934 | 287.32 | 799 | 779 | 188.5 |
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 |  |