Observation information
- date-obs: 2017-07-27
- time-obs: 06:30:38.911300000
- date-end: 2017-07-27
- time-end: 08:46:44.916400000
- obs_id: A03_117T06_9000001404
- exposure: 4178.64802115
- 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_09890cztM0_level2.evt
| modeM0/AS1A03_117T06_9000001404_09890cztM0_level2_quad_clean.evt
|
| Size (bytes) | 515,787,840 | 88,672,320 |
| Size | 491.9 MB
| 84.6 MB
|
| Events in quadrant A | 3,798,789 | 531,555 |
| Events in quadrant B | 3,822,646 | 548,972 |
| Events in quadrant C | 3,736,014 | 540,091 |
| Events in quadrant D | 3,730,206 | 519,251 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16932 | 193 |
| B | 0 | 16891 | 223 |
| C | 0 | 16977 | 229 |
| D | 0 | 17060 | 213 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 162 | 0 |
| B | 0 | 162 | 2 |
| C | 0 | 162 | 0 |
| D | 0 | 162 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7832 | 454 | 5.796731% |
| B | 7817 | 449 | 5.743892% |
| C | 7822 | 291 | 3.720276% |
| D | 7831 | 323 | 4.124633% |
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 | 8166 | 7894 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8166 | 7888 | 1 | 1 | 0.01% | 0.01% |  |
| C | 8166 | 7893 | 1 | 1 | 0.01% | 0.01% |  |
| D | 8166 | 7891 | 6 | 6 | 0.07% | 0.08% |  |
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 | 13 | 251 | 21479 | 102.07 | 979 | 957 | 201.0 |
| A | 15 | 239 | 15160 | 70.64 | 979 | 957 | 201.0 |
| A | 0 | 226 | 8761 | 38.82 | 979 | 957 | 201.0 |
| B | 12 | 111 | 23640 | 116.62 | 973 | 946 | 194.6 |
| B | 11 | 111 | 19843 | 97.11 | 973 | 946 | 194.6 |
| B | 14 | 111 | 16677 | 80.84 | 973 | 946 | 194.6 |
| C | 9 | 221 | 7348 | 28.21 | 953 | 958 | 226.5 |
| C | 14 | 67 | 7114 | 27.18 | 953 | 958 | 226.5 |
| C | 13 | 61 | 6948 | 26.45 | 953 | 958 | 226.5 |
| D | 8 | 195 | 49899 | 198.02 | 946 | 924 | 247.3 |
| D | 1 | 52 | 47173 | 187.0 | 946 | 924 | 247.3 |
| D | 2 | 234 | 28796 | 112.69 | 946 | 924 | 247.3 |
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 |  |