Observation information
- date-obs: 2017-07-25
- time-obs: 19:21:50.860600000
- date-end: 2017-07-25
- time-end: 21:57:20.862800000
- obs_id: A03_117T06_9000001404
- exposure: 4120.07211442
- sourceid: 4U 1957+115
- observer: dipak
- ra_pnt: 299.8509
- dec_pnt: 11.709
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_117T06_9000001404_09869cztM0_level2.evt
| modeM0/AS1A03_117T06_9000001404_09869cztM0_level2_quad_clean.evt
|
| Size (bytes) | 479,931,840 | 92,580,480 |
| Size | 457.7 MB
| 88.3 MB
|
| Events in quadrant A | 3,303,617 | 584,528 |
| Events in quadrant B | 3,727,773 | 600,917 |
| Events in quadrant C | 3,371,292 | 588,196 |
| Events in quadrant D | 3,665,411 | 551,670 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 1 |
| D | 0 | 24 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14665 | 243 |
| B | 0 | 15803 | 300 |
| C | 0 | 14976 | 224 |
| D | 0 | 16005 | 368 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 2 |
| B | 0 | 142 | 4 |
| C | 0 | 142 | 2 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6879 | 70 | 1.017590% |
| B | 6866 | 167 | 2.432275% |
| C | 6890 | 62 | 0.899855% |
| D | 6846 | 142 | 2.074204% |
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 | 9330 | 6970 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9330 | 6960 | 69 | 69 | 0.74% | 0.99% |  |
| C | 9330 | 6964 | 1 | 1 | 0.01% | 0.01% |  |
| D | 9330 | 6960 | 69 | 69 | 0.74% | 0.99% |  |
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 | 0 | 226 | 7747 | 39.72 | 856 | 838 | 173.9 |
| A | 12 | 194 | 6718 | 33.81 | 856 | 838 | 173.9 |
| A | 15 | 174 | 6714 | 33.79 | 856 | 838 | 173.9 |
| B | 4 | 81 | 390385 | 2375.69 | 858 | 840 | 164.0 |
| B | 12 | 111 | 19046 | 111.03 | 858 | 840 | 164.0 |
| B | 11 | 111 | 15712 | 90.7 | 858 | 840 | 164.0 |
| C | 9 | 236 | 30919 | 154.45 | 842 | 849 | 194.7 |
| C | 14 | 234 | 27479 | 136.78 | 842 | 849 | 194.7 |
| C | 4 | 254 | 12833 | 61.55 | 842 | 849 | 194.7 |
| D | 1 | 52 | 341298 | 1600.44 | 820 | 802 | 212.8 |
| D | 2 | 14 | 89895 | 418.77 | 820 | 802 | 212.8 |
| D | 10 | 172 | 68417 | 317.81 | 820 | 802 | 212.8 |
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 |  |