Observation information
- date-obs: 2017-07-26
- time-obs: 14:36:21.888600000
- date-end: 2017-07-26
- time-end: 17:10:17.892700000
- obs_id: A03_117T06_9000001404
- exposure: 4838.12735213
- 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_09880cztM0_level2.evt
| modeM0/AS1A03_117T06_9000001404_09880cztM0_level2_quad_clean.evt
|
| Size (bytes) | 516,677,760 | 95,264,640 |
| Size | 492.7 MB
| 90.9 MB
|
| Events in quadrant A | 3,603,566 | 594,874 |
| Events in quadrant B | 3,635,737 | 612,266 |
| Events in quadrant C | 4,018,906 | 582,206 |
| Events in quadrant D | 3,873,681 | 567,338 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15792 | 10 |
| B | 0 | 15757 | 10 |
| C | 0 | 17067 | 8 |
| D | 0 | 16599 | 8 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7593 | 97 | 1.277492% |
| B | 7593 | 117 | 1.540893% |
| C | 7593 | 245 | 3.226656% |
| D | 7593 | 109 | 1.435533% |
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 | 9236 | 7598 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9236 | 7598 | 1 | 1 | 0.01% | 0.01% |  |
| C | 9236 | 7598 | 87 | 87 | 0.94% | 1.15% |  |
| D | 9236 | 7598 | 13 | 13 | 0.14% | 0.17% |  |
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 | 72148 | 385.25 | 914 | 895 | 185.0 |
| A | 15 | 239 | 9218 | 45.0 | 914 | 895 | 185.0 |
| A | 0 | 226 | 8255 | 39.79 | 914 | 895 | 185.0 |
| B | 4 | 81 | 71022 | 395.2 | 915 | 890 | 177.5 |
| B | 12 | 111 | 21731 | 117.44 | 915 | 890 | 177.5 |
| B | 11 | 111 | 18137 | 97.19 | 915 | 890 | 177.5 |
| C | 4 | 254 | 520981 | 2526.55 | 881 | 885 | 205.9 |
| C | 14 | 234 | 31852 | 150.43 | 881 | 885 | 205.9 |
| C | 9 | 221 | 17528 | 80.85 | 881 | 885 | 205.9 |
| D | 2 | 16 | 257003 | 1110.77 | 881 | 863 | 230.6 |
| D | 1 | 52 | 150698 | 649.77 | 881 | 863 | 230.6 |
| D | 2 | 14 | 49113 | 209.24 | 881 | 863 | 230.6 |
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 |  |