Observation information
- date-obs: 2018-07-18
- time-obs: 04:24:27.329800000
- date-end: 2018-07-18
- time-end: 06:48:14.335800000
- obs_id: A04_218T08_9000002236
- exposure: 4858.361287
- 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_15158cztM0_level2.evt
| modeM0/AS1A04_218T08_9000002236_15158cztM0_level2_quad_clean.evt
|
| Size (bytes) | 520,752,960 | 98,530,560 |
| Size | 496.6 MB
| 94.0 MB
|
| Events in quadrant A | 4,147,437 | 614,204 |
| Events in quadrant B | 3,844,371 | 626,645 |
| Events in quadrant C | 3,644,765 | 627,401 |
| Events in quadrant D | 3,631,222 | 599,600 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17202 | 3 |
| B | 0 | 16209 | 2 |
| C | 0 | 15436 | 2 |
| D | 0 | 16054 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7411 | 164 | 2.212927% |
| B | 7411 | 202 | 2.725678% |
| C | 7411 | 142 | 1.916071% |
| D | 7412 | 144 | 1.942795% |
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 | 8627 | 7413 | 6 | 6 | 0.07% | 0.08% |  |
| B | 8627 | 7414 | 32 | 32 | 0.37% | 0.43% |  |
| C | 8627 | 7413 | 8 | 8 | 0.09% | 0.11% |  |
| D | 8628 | 7414 | 22 | 22 | 0.25% | 0.30% |  |
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 | 743699 | 4172.8 | 877 | 856 | 178.0 |
| A | 13 | 248 | 21567 | 116.34 | 877 | 856 | 178.0 |
| A | 12 | 189 | 11696 | 60.89 | 877 | 856 | 178.0 |
| B | 3 | 64 | 276149 | 1647.2 | 881 | 858 | 167.1 |
| B | 0 | 229 | 88094 | 521.98 | 881 | 858 | 167.1 |
| B | 4 | 48 | 20518 | 117.64 | 881 | 858 | 167.1 |
| C | 3 | 233 | 229488 | 1145.35 | 866 | 869 | 199.6 |
| C | 14 | 234 | 27511 | 133.47 | 866 | 869 | 199.6 |
| C | 9 | 236 | 9847 | 44.98 | 866 | 869 | 199.6 |
| D | 10 | 70 | 137581 | 656.87 | 859 | 831 | 208.2 |
| D | 2 | 16 | 111181 | 530.06 | 859 | 831 | 208.2 |
| D | 12 | 222 | 72904 | 346.2 | 859 | 831 | 208.2 |
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 |  |