Observation information
- date-obs: 2017-07-25
- time-obs: 05:53:14.844100000
- date-end: 2017-07-25
- time-end: 08:00:29.845900000
- obs_id: A03_117T06_9000001404
- exposure: 3222.83910616
- 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_09860cztM0_level2.evt
| modeM0/AS1A03_117T06_9000001404_09860cztM0_level2_quad_clean.evt
|
| Size (bytes) | 385,153,920 | 67,786,560 |
| Size | 367.3 MB
| 64.6 MB
|
| Events in quadrant A | 2,779,289 | 411,119 |
| Events in quadrant B | 2,855,773 | 423,278 |
| Events in quadrant C | 2,807,993 | 403,829 |
| Events in quadrant D | 2,810,967 | 394,503 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 4 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15094 | 2678 |
| B | 0 | 15234 | 2733 |
| C | 0 | 15471 | 2887 |
| D | 0 | 15367 | 2757 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 26 |
| B | 0 | 148 | 26 |
| C | 0 | 147 | 25 |
| D | 0 | 148 | 22 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6002 | 155 | 2.582473% |
| B | 6023 | 165 | 2.739499% |
| C | 5962 | 115 | 1.928883% |
| D | 5994 | 111 | 1.851852% |
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 | 7608 | 6759 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7612 | 6761 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7612 | 6697 | 10 | 10 | 0.13% | 0.15% |  |
| D | 7610 | 6732 | 0 | 0 | 0.00% | 0.00% |  |
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 | 6705 | 40.69 | 720 | 705 | 147.5 |
| A | 12 | 194 | 5642 | 33.48 | 720 | 705 | 147.5 |
| A | 8 | 4 | 5256 | 30.86 | 720 | 705 | 147.5 |
| B | 4 | 81 | 23929 | 164.19 | 721 | 703 | 141.5 |
| B | 0 | 229 | 22479 | 153.94 | 721 | 703 | 141.5 |
| B | 12 | 111 | 17211 | 116.7 | 721 | 703 | 141.5 |
| C | 14 | 234 | 61175 | 370.02 | 692 | 696 | 163.4 |
| C | 4 | 254 | 38276 | 229.92 | 692 | 696 | 163.4 |
| C | 10 | 22 | 6959 | 38.32 | 692 | 696 | 163.4 |
| D | 1 | 52 | 130558 | 715.94 | 688 | 672 | 181.4 |
| D | 10 | 172 | 30700 | 165.52 | 688 | 672 | 181.4 |
| D | 2 | 234 | 20889 | 111.44 | 688 | 672 | 181.4 |
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 |  |