Observation information
- date-obs: 2018-07-18
- time-obs: 01:11:17.322600000
- date-end: 2018-07-18
- time-end: 03:19:33.327400000
- obs_id: A04_218T08_9000002236
- exposure: 4760.25023231
- 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_15156cztM0_level2.evt
| modeM0/AS1A04_218T08_9000002236_15156cztM0_level2_quad_clean.evt
|
| Size (bytes) | 455,065,920 | 102,170,880 |
| Size | 434.0 MB
| 97.4 MB
|
| Events in quadrant A | 3,650,852 | 655,398 |
| Events in quadrant B | 3,199,161 | 677,565 |
| Events in quadrant C | 3,243,518 | 675,315 |
| Events in quadrant D | 3,249,161 | 635,327 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15408 | 3 |
| B | 0 | 13483 | 2 |
| C | 0 | 13515 | 2 |
| D | 0 | 14022 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6460 | 34 | 0.526316% |
| B | 6460 | 45 | 0.696594% |
| C | 6460 | 28 | 0.433437% |
| D | 6461 | 56 | 0.866739% |
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 | 7696 | 6462 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7696 | 6462 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7696 | 6462 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7697 | 6463 | 36 | 36 | 0.47% | 0.56% |  |
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 | 623985 | 3990.16 | 782 | 765 | 156.2 |
| A | 12 | 189 | 11888 | 71.21 | 782 | 765 | 156.2 |
| A | 13 | 248 | 10888 | 64.81 | 782 | 765 | 156.2 |
| B | 0 | 229 | 23841 | 155.72 | 796 | 776 | 148.1 |
| B | 12 | 111 | 17326 | 111.73 | 796 | 776 | 148.1 |
| B | 3 | 64 | 15304 | 98.08 | 796 | 776 | 148.1 |
| C | 3 | 233 | 182899 | 1017.37 | 784 | 789 | 179.0 |
| C | 13 | 61 | 5458 | 26.08 | 784 | 789 | 179.0 |
| C | 9 | 236 | 2875 | 11.65 | 784 | 789 | 179.0 |
| D | 10 | 70 | 196124 | 1049.72 | 771 | 750 | 186.1 |
| D | 2 | 16 | 37550 | 197.72 | 771 | 750 | 186.1 |
| D | 2 | 234 | 22134 | 114.89 | 771 | 750 | 186.1 |
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 |  |