Observation information
- date-obs: 2017-07-26
- time-obs: 18:02:30.893500000
- date-end: 2017-07-26
- time-end: 20:37:56.897600000
- obs_id: A03_117T06_9000001404
- exposure: 4510.65357456
- 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_09883cztM0_level2.evt
| modeM0/AS1A03_117T06_9000001404_09883cztM0_level2_quad_clean.evt
|
| Size (bytes) | 456,600,960 | 97,467,840 |
| Size | 435.4 MB
| 93.0 MB
|
| Events in quadrant A | 3,292,227 | 619,698 |
| Events in quadrant B | 3,306,916 | 643,614 |
| Events in quadrant C | 3,431,254 | 623,269 |
| Events in quadrant D | 3,336,910 | 593,440 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15124 | 765 |
| B | 0 | 15035 | 705 |
| C | 0 | 15553 | 731 |
| D | 0 | 15388 | 716 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 6 |
| B | 0 | 146 | 8 |
| C | 0 | 146 | 6 |
| D | 0 | 146 | 6 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6754 | 89 | 1.317738% |
| B | 6780 | 106 | 1.563422% |
| C | 6774 | 134 | 1.978152% |
| D | 6776 | 120 | 1.770956% |
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 | 9326 | 6953 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9326 | 6978 | 3 | 3 | 0.03% | 0.04% |  |
| C | 9326 | 6976 | 39 | 39 | 0.42% | 0.56% |  |
| D | 9326 | 6981 | 42 | 42 | 0.45% | 0.60% |  |
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 | 75109 | 441.24 | 835 | 819 | 168.4 |
| A | 0 | 226 | 7375 | 38.94 | 835 | 819 | 168.4 |
| A | 15 | 239 | 7135 | 37.51 | 835 | 819 | 168.4 |
| B | 12 | 111 | 19176 | 112.59 | 846 | 821 | 163.0 |
| B | 4 | 81 | 16905 | 98.66 | 846 | 821 | 163.0 |
| B | 11 | 111 | 15875 | 92.34 | 846 | 821 | 163.0 |
| C | 4 | 254 | 134586 | 703.47 | 826 | 832 | 190.1 |
| C | 14 | 234 | 72864 | 378.85 | 826 | 832 | 190.1 |
| C | 13 | 61 | 6066 | 27.53 | 826 | 832 | 190.1 |
| D | 1 | 52 | 143719 | 679.54 | 813 | 797 | 210.3 |
| D | 2 | 14 | 39701 | 184.98 | 813 | 797 | 210.3 |
| D | 8 | 195 | 35961 | 167.19 | 813 | 797 | 210.3 |
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 |  |