Observation information
- date-obs: 2018-03-09
- time-obs: 02:58:31.664700000
- date-end: 2018-03-09
- time-end: 05:04:53.668900000
- obs_id: A04_216T01_9000001968
- exposure: 5421.13797875
- sourceid: Cen X-3
- observer: shivangi
- ra_pnt: 170.3158
- dec_pnt: -60.62297
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_216T01_9000001968_13218cztM0_level2.evt
| modeM0/AS1A04_216T01_9000001968_13218cztM0_level2_quad_clean.evt
|
| Size (bytes) | 516,404,160 | 104,146,560 |
| Size | 492.5 MB
| 99.3 MB
|
| Events in quadrant A | 3,171,996 | 690,227 |
| Events in quadrant B | 5,387,863 | 638,160 |
| Events in quadrant C | 3,156,375 | 687,435 |
| Events in quadrant D | 3,444,973 | 647,800 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14305 | 2 |
| B | 0 | 20764 | 1 |
| C | 0 | 14403 | 1 |
| D | 0 | 15435 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7052 | 64 | 0.907544% |
| B | 7052 | 1011 | 14.336358% |
| C | 7052 | 65 | 0.921724% |
| D | 7052 | 149 | 2.112876% |
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 | 7583 | 7056 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7583 | 7056 | 626 | 626 | 8.26% | 8.87% |  |
| C | 7583 | 7056 | 3 | 3 | 0.04% | 0.04% |  |
| D | 7583 | 7056 | 50 | 50 | 0.66% | 0.71% |  |
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 | 35665 | 211.41 | 808 | 791 | 165.0 |
| A | 1 | 162 | 15646 | 90.05 | 808 | 791 | 165.0 |
| A | 0 | 226 | 7210 | 38.91 | 808 | 791 | 165.0 |
| B | 4 | 239 | 2334312 | 16342.62 | 760 | 740 | 142.8 |
| B | 3 | 64 | 26514 | 180.5 | 760 | 740 | 142.8 |
| B | 0 | 214 | 18869 | 126.96 | 760 | 740 | 142.8 |
| C | 15 | 208 | 47229 | 252.84 | 796 | 799 | 183.6 |
| C | 13 | 61 | 5742 | 26.92 | 796 | 799 | 183.6 |
| C | 8 | 128 | 3042 | 12.21 | 796 | 799 | 183.6 |
| D | 13 | 122 | 342567 | 1847.0 | 776 | 753 | 185.1 |
| D | 2 | 33 | 75943 | 406.29 | 776 | 753 | 185.1 |
| D | 8 | 195 | 37682 | 199.55 | 776 | 753 | 185.1 |
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 |  |