Observation information
- date-obs: 2018-04-28
- time-obs: 16:39:19.938700000
- date-end: 2018-04-28
- time-end: 19:06:34.936900000
- obs_id: A04_225T01_9000002062
- exposure: 4901.55593957
- 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_13967cztM0_level2.evt
| modeM0/AS1A04_225T01_9000002062_13967cztM0_level2_quad_clean.evt
|
| Size (bytes) | 461,733,120 | 107,792,640 |
| Size | 440.3 MB
| 102.8 MB
|
| Events in quadrant A | 3,326,867 | 714,768 |
| Events in quadrant B | 3,577,299 | 741,115 |
| Events in quadrant C | 3,200,853 | 707,853 |
| Events in quadrant D | 3,459,305 | 669,824 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13761 | 3 |
| B | 0 | 14666 | 2 |
| C | 0 | 13280 | 2 |
| D | 0 | 14395 | 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 | 6175 | 97 | 1.570850% |
| B | 6175 | 131 | 2.121457% |
| C | 6175 | 23 | 0.372470% |
| D | 6175 | 62 | 1.004049% |
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 | 8836 | 6178 | 3 | 3 | 0.03% | 0.05% |  |
| B | 8836 | 6178 | 20 | 20 | 0.23% | 0.32% |  |
| C | 8836 | 6178 | 1 | 1 | 0.01% | 0.02% |  |
| D | 8836 | 6178 | 33 | 33 | 0.37% | 0.53% |  |
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 | 14 | 111 | 156342 | 957.85 | 811 | 796 | 162.4 |
| A | 8 | 15 | 21228 | 125.82 | 811 | 796 | 162.4 |
| A | 1 | 162 | 13864 | 80.47 | 811 | 796 | 162.4 |
| B | 0 | 189 | 86892 | 570.18 | 819 | 801 | 151.0 |
| B | 10 | 245 | 66674 | 436.28 | 819 | 801 | 151.0 |
| B | 3 | 64 | 57416 | 374.96 | 819 | 801 | 151.0 |
| C | 3 | 233 | 134177 | 738.92 | 785 | 790 | 180.5 |
| C | 13 | 61 | 5753 | 27.49 | 785 | 790 | 180.5 |
| C | 6 | 253 | 5563 | 26.44 | 785 | 790 | 180.5 |
| D | 1 | 52 | 151591 | 741.38 | 766 | 752 | 203.5 |
| D | 8 | 195 | 106957 | 522.0 | 766 | 752 | 203.5 |
| D | 10 | 199 | 44655 | 215.79 | 766 | 752 | 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 |  |