Observation information
- date-obs: 2018-07-18
- time-obs: 09:47:08.344900000
- date-end: 2018-07-18
- time-end: 15:54:58.360700000
- obs_id: A04_218T08_9000002236
- exposure: 15332.9122066
- sourceid: SWIFT J1921.1-5842
- observer: gulabd
- ra_pnt: 290.3089
- dec_pnt: -58.67037
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_218T08_9000002236_15164cztM0_level2.evt
| modeM0/AS1A04_218T08_9000002236_15164cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,419,912,000 | 289,293,120 |
| Size | 1.3 GB
| 275.9 MB
|
| Events in quadrant A | 10,342,655 | 1,850,862 |
| Events in quadrant B | 9,859,453 | 1,858,159 |
| Events in quadrant C | 12,022,501 | 1,875,031 |
| Events in quadrant D | 9,439,758 | 1,814,476 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 404 | 0 |
| B | 0 | 404 | 0 |
| C | 0 | 404 | 0 |
| D | 0 | 404 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 43856 | 5 |
| B | 0 | 42535 | 4 |
| C | 0 | 49186 | 4 |
| D | 0 | 41548 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19805 | 294 | 1.484474% |
| B | 19805 | 418 | 2.110578% |
| C | 19805 | 237 | 1.196668% |
| D | 19805 | 249 | 1.257258% |
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 | 22071 | 19807 | 2 | 2 | 0.01% | 0.01% |  |
| B | 22071 | 19806 | 84 | 84 | 0.38% | 0.42% |  |
| C | 22071 | 19807 | 1 | 1 | 0.00% | 0.01% |  |
| D | 22071 | 19806 | 28 | 28 | 0.13% | 0.14% |  |
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 | 239 | 1425099 | 3079.62 | 2302 | 2250 | 462.0 |
| A | 12 | 189 | 44905 | 92.32 | 2302 | 2250 | 462.0 |
| A | 13 | 248 | 30015 | 60.09 | 2302 | 2250 | 462.0 |
| B | 3 | 64 | 512988 | 1166.61 | 2309 | 2243 | 437.8 |
| B | 4 | 48 | 105531 | 235.92 | 2309 | 2243 | 437.8 |
| B | 0 | 230 | 86320 | 192.04 | 2309 | 2243 | 437.8 |
| C | 3 | 233 | 3179658 | 6120.73 | 2255 | 2270 | 519.1 |
| C | 3 | 9 | 18831 | 31.9 | 2255 | 2270 | 519.1 |
| C | 13 | 61 | 16107 | 26.65 | 2255 | 2270 | 519.1 |
| D | 2 | 16 | 536736 | 980.8 | 2256 | 2186 | 545.0 |
| D | 2 | 120 | 83430 | 149.07 | 2256 | 2186 | 545.0 |
| D | 2 | 234 | 80057 | 142.88 | 2256 | 2186 | 545.0 |
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 |  |