Observation information
- date-obs: 2018-04-27
- time-obs: 16:13:47.964400000
- date-end: 2018-04-27
- time-end: 18:42:04.959300000
- obs_id: A04_225T01_9000002062
- exposure: 4931.6875381
- sourceid: 4U 1702-429
- observer: navinsridhar
- ra_pnt: 256.5638
- dec_pnt: -43.03575
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_225T01_9000002062_13952cztM0_level2.evt
| modeM0/AS1A04_225T01_9000002062_13952cztM0_level2_quad_clean.evt
|
| Size (bytes) | 497,753,280 | 106,608,960 |
| Size | 474.7 MB
| 101.7 MB
|
| Events in quadrant A | 3,352,177 | 699,372 |
| Events in quadrant B | 3,590,318 | 727,810 |
| Events in quadrant C | 3,371,617 | 701,468 |
| Events in quadrant D | 4,330,832 | 658,422 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14054 | 3 |
| B | 0 | 14757 | 2 |
| C | 0 | 14021 | 2 |
| D | 0 | 17164 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26 | 0 |
| B | 0 | 26 | 0 |
| C | 0 | 26 | 0 |
| D | 0 | 26 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6332 | 106 | 1.674037% |
| B | 6332 | 157 | 2.479469% |
| C | 6332 | 66 | 1.042325% |
| D | 6332 | 127 | 2.005685% |
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 | 8898 | 6335 | 9 | 9 | 0.10% | 0.14% |  |
| B | 8898 | 6335 | 22 | 22 | 0.25% | 0.35% |  |
| C | 8898 | 6335 | 3 | 3 | 0.03% | 0.05% |  |
| D | 8898 | 6335 | 46 | 46 | 0.52% | 0.73% |  |
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 | 15 | 222 | 61635 | 365.52 | 826 | 812 | 166.4 |
| A | 15 | 69 | 25610 | 149.03 | 826 | 812 | 166.4 |
| A | 1 | 162 | 22715 | 131.63 | 826 | 812 | 166.4 |
| B | 0 | 219 | 99205 | 640.64 | 838 | 819 | 153.6 |
| B | 0 | 189 | 81261 | 523.8 | 838 | 819 | 153.6 |
| B | 0 | 190 | 39045 | 248.91 | 838 | 819 | 153.6 |
| C | 3 | 233 | 221264 | 1200.78 | 805 | 811 | 183.6 |
| C | 0 | 207 | 7212 | 34.86 | 805 | 811 | 183.6 |
| C | 13 | 61 | 5831 | 27.34 | 805 | 811 | 183.6 |
| D | 13 | 122 | 498231 | 2490.21 | 787 | 769 | 199.8 |
| D | 8 | 195 | 246333 | 1229.25 | 787 | 769 | 199.8 |
| D | 1 | 52 | 134025 | 667.06 | 787 | 769 | 199.8 |
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 |  |