Observation information
- date-obs: 2018-08-19
- time-obs: 15:15:57.417000000
- date-end: 2018-08-19
- time-end: 17:25:24.040800000
- obs_id: T02_086T01_9000002316
- exposure: 5481.54976119
- 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_15638cztM0_level2.evt
| modeM0/AS1T02_086T01_9000002316_15638cztM0_level2_quad_clean.evt
|
| Size (bytes) | 489,968,640 | 105,883,200 |
| Size | 467.3 MB
| 101.0 MB
|
| Events in quadrant A | 3,397,938 | 681,377 |
| Events in quadrant B | 3,465,911 | 690,221 |
| Events in quadrant C | 3,554,434 | 671,774 |
| Events in quadrant D | 3,919,487 | 650,023 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15085 | 2 |
| B | 0 | 15133 | 1 |
| C | 0 | 15242 | 1 |
| D | 0 | 16816 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7372 | 38 | 0.515464% |
| B | 7372 | 37 | 0.501899% |
| C | 7372 | 71 | 0.963104% |
| D | 7372 | 164 | 2.224634% |
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 | 7767 | 7373 | 8 | 8 | 0.10% | 0.11% |  |
| B | 7768 | 7373 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7768 | 7374 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7767 | 7372 | 116 | 116 | 1.49% | 1.57% |  |
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 | 248 | 15932 | 85.7 | 869 | 851 | 176.0 |
| A | 3 | 80 | 13002 | 69.05 | 869 | 851 | 176.0 |
| A | 15 | 223 | 11257 | 59.14 | 869 | 851 | 176.0 |
| B | 0 | 219 | 21033 | 121.02 | 866 | 843 | 166.8 |
| B | 12 | 111 | 18577 | 106.3 | 866 | 843 | 166.8 |
| B | 0 | 189 | 18158 | 103.78 | 866 | 843 | 166.8 |
| C | 3 | 233 | 175598 | 901.41 | 829 | 835 | 193.9 |
| C | 14 | 238 | 129045 | 661.3 | 829 | 835 | 193.9 |
| C | 0 | 207 | 14964 | 72.88 | 829 | 835 | 193.9 |
| D | 1 | 52 | 505617 | 2480.75 | 832 | 806 | 203.5 |
| D | 12 | 110 | 94829 | 462.05 | 832 | 806 | 203.5 |
| D | 4 | 239 | 53408 | 258.5 | 832 | 806 | 203.5 |
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 |  |