Observation information
- date-obs: 2018-08-18
- time-obs: 14:56:11.662600000
- date-end: 2018-08-18
- time-end: 16:58:59.066300000
- obs_id: T02_086T01_9000002316
- exposure: 5284.61584827
- sourceid: 4U 1636-536
- observer: sudip
- ra_pnt: 250.2312
- dec_pnt: -53.75139
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_086T01_9000002316_15623cztM0_level2.evt
| modeM0/AS1T02_086T01_9000002316_15623cztM0_level2_quad_clean.evt
|
| Size (bytes) | 470,845,440 | 102,692,160 |
| Size | 449.0 MB
| 97.9 MB
|
| Events in quadrant A | 3,341,863 | 659,956 |
| Events in quadrant B | 3,707,388 | 663,641 |
| Events in quadrant C | 3,311,702 | 648,040 |
| Events in quadrant D | 3,413,076 | 641,017 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 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 | 14685 | 2 |
| B | 0 | 15596 | 1 |
| C | 0 | 14660 | 1 |
| D | 0 | 15179 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7138 | 60 | 0.840572% |
| B | 7138 | 139 | 1.947324% |
| C | 7138 | 76 | 1.064724% |
| D | 7138 | 43 | 0.602410% |
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 | 7369 | 7140 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7369 | 7139 | 38 | 38 | 0.52% | 0.53% |  |
| C | 7369 | 7139 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7369 | 7140 | 31 | 31 | 0.42% | 0.43% |  |
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 | 80 | 32201 | 181.21 | 851 | 832 | 173.1 |
| A | 4 | 2 | 14182 | 77.12 | 851 | 832 | 173.1 |
| A | 13 | 248 | 11497 | 61.61 | 851 | 832 | 173.1 |
| B | 3 | 209 | 117948 | 724.42 | 845 | 825 | 161.7 |
| B | 0 | 85 | 93411 | 572.66 | 845 | 825 | 161.7 |
| B | 5 | 65 | 54562 | 332.37 | 845 | 825 | 161.7 |
| C | 14 | 238 | 122729 | 640.9 | 808 | 812 | 190.2 |
| C | 3 | 233 | 18177 | 91.29 | 808 | 812 | 190.2 |
| C | 8 | 128 | 9894 | 47.74 | 808 | 812 | 190.2 |
| D | 1 | 52 | 100637 | 498.2 | 823 | 797 | 200.4 |
| D | 5 | 51 | 92069 | 455.44 | 823 | 797 | 200.4 |
| D | 2 | 120 | 31983 | 155.62 | 823 | 797 | 200.4 |
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 |  |