Observation information
- date-obs: 2018-02-13
- time-obs: 17:52:02.908600000
- date-end: 2018-02-13
- time-end: 20:12:29.907600000
- obs_id: G08_041T01_9000001892
- exposure: 4020.66991578
- sourceid: 4U 1700-377
- observer: jsyadav
- ra_pnt: 255.9866
- dec_pnt: -37.84414
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_041T01_9000001892_12872cztM0_level2.evt
| modeM0/AS1G08_041T01_9000001892_12872cztM0_level2_quad_clean.evt
|
| Size (bytes) | 647,470,080 | 84,257,280 |
| Size | 617.5 MB
| 80.4 MB
|
| Events in quadrant A | 3,948,294 | 513,013 |
| Events in quadrant B | 7,028,371 | 491,142 |
| Events in quadrant C | 3,796,033 | 510,702 |
| Events in quadrant D | 4,298,401 | 485,335 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 162 | 0 |
| B | 0 | 162 | 0 |
| C | 0 | 162 | 0 |
| D | 0 | 162 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16963 | 3 |
| B | 0 | 26080 | 2 |
| C | 0 | 16635 | 2 |
| D | 0 | 18239 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7928 | 261 | 3.292129% |
| B | 7928 | 1460 | 18.415742% |
| C | 7928 | 124 | 1.564077% |
| D | 7928 | 237 | 2.989405% |
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 | 8428 | 7931 | 1 | 1 | 0.01% | 0.01% |  |
| B | 8428 | 7931 | 854 | 854 | 10.13% | 10.77% |  |
| C | 8428 | 7931 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8428 | 7931 | 102 | 102 | 1.21% | 1.29% |  |
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 | 15 | 174 | 39640 | 190.16 | 998 | 972 | 203.3 |
| A | 8 | 15 | 15754 | 72.7 | 998 | 972 | 203.3 |
| A | 12 | 189 | 13970 | 63.92 | 998 | 972 | 203.3 |
| B | 0 | 85 | 1913986 | 10754.35 | 925 | 902 | 177.9 |
| B | 4 | 239 | 941567 | 5287.92 | 925 | 902 | 177.9 |
| B | 0 | 219 | 288672 | 1617.69 | 925 | 902 | 177.9 |
| C | 8 | 128 | 12526 | 51.1 | 967 | 972 | 226.1 |
| C | 13 | 61 | 7166 | 27.39 | 967 | 972 | 226.1 |
| C | 8 | 112 | 7113 | 27.16 | 967 | 972 | 226.1 |
| D | 1 | 52 | 452805 | 1931.53 | 961 | 933 | 233.9 |
| D | 2 | 14 | 57269 | 240.81 | 961 | 933 | 233.9 |
| D | 2 | 136 | 46862 | 196.32 | 961 | 933 | 233.9 |
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 |  |