Observation information
- date-obs: 2017-07-13
- time-obs: 00:54:44.650500000
- date-end: 2017-07-13
- time-end: 03:26:03.649300000
- obs_id: A02_198T01_9000001376
- exposure: 4316.48352628
- sourceid: 4U 1538-52
- observer: varun
- ra_pnt: 235.5973
- dec_pnt: -52.386
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_198T01_9000001376_09680cztM0_level2.evt
| modeM0/AS1A02_198T01_9000001376_09680cztM0_level2_quad_clean.evt
|
| Size (bytes) | 493,603,200 | 91,848,960 |
| Size | 470.7 MB
| 87.6 MB
|
| Events in quadrant A | 3,685,051 | 577,161 |
| Events in quadrant B | 3,438,627 | 581,008 |
| Events in quadrant C | 3,285,554 | 582,684 |
| Events in quadrant D | 4,068,044 | 556,641 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15283 | 3 |
| B | 0 | 14693 | 2 |
| C | 0 | 14408 | 2 |
| D | 0 | 17053 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6944 | 38 | 0.547235% |
| B | 6944 | 43 | 0.619240% |
| C | 6944 | 48 | 0.691244% |
| D | 6944 | 82 | 1.180876% |
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 | 9079 | 6946 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9079 | 6946 | 4 | 4 | 0.04% | 0.06% |  |
| C | 9079 | 6946 | 21 | 21 | 0.23% | 0.30% |  |
| D | 9079 | 6946 | 59 | 59 | 0.65% | 0.85% |  |
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 | 8 | 15 | 438424 | 2606.63 | 829 | 811 | 167.9 |
| A | 15 | 174 | 31532 | 182.99 | 829 | 811 | 167.9 |
| A | 1 | 162 | 15486 | 87.41 | 829 | 811 | 167.9 |
| B | 0 | 214 | 75844 | 476.87 | 834 | 815 | 157.3 |
| B | 0 | 219 | 39875 | 248.26 | 834 | 815 | 157.3 |
| B | 12 | 111 | 17220 | 104.27 | 834 | 815 | 157.3 |
| C | 14 | 234 | 102797 | 545.65 | 812 | 816 | 186.9 |
| C | 9 | 68 | 16279 | 82.73 | 812 | 816 | 186.9 |
| C | 13 | 61 | 6000 | 27.74 | 812 | 816 | 186.9 |
| D | 8 | 195 | 702148 | 3608.11 | 801 | 781 | 194.4 |
| D | 1 | 52 | 187793 | 962.06 | 801 | 781 | 194.4 |
| D | 2 | 152 | 38962 | 196.42 | 801 | 781 | 194.4 |
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 |  |