Observation information
- date-obs: 2018-07-18
- time-obs: 21:46:32.375000000
- date-end: 2018-07-19
- time-end: 00:14:34.380800000
- obs_id: A04_218T08_9000002236
- exposure: 4640.20119639
- 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_15169cztM0_level2.evt
| modeM0/AS1A04_218T08_9000002236_15169cztM0_level2_quad_clean.evt
|
| Size (bytes) | 467,136,000 | 104,906,880 |
| Size | 445.5 MB
| 100.0 MB
|
| Events in quadrant A | 3,909,720 | 675,568 |
| Events in quadrant B | 3,483,416 | 703,629 |
| Events in quadrant C | 3,269,753 | 702,290 |
| Events in quadrant D | 3,056,498 | 655,942 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25 | 0 |
| B | 0 | 25 | 0 |
| C | 0 | 25 | 0 |
| D | 0 | 26 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15986 | 3 |
| B | 0 | 14406 | 2 |
| C | 0 | 13459 | 2 |
| D | 0 | 13343 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6301 | 71 | 1.126805% |
| B | 6301 | 119 | 1.888589% |
| C | 6301 | 15 | 0.238057% |
| D | 6301 | 26 | 0.412633% |
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 | 7702 | 6304 | 13 | 13 | 0.17% | 0.21% |  |
| B | 7702 | 6304 | 42 | 42 | 0.55% | 0.67% |  |
| C | 7702 | 6304 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7702 | 6304 | 6 | 6 | 0.08% | 0.10% |  |
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 | 463958 | 2973.8 | 781 | 765 | 155.8 |
| A | 0 | 253 | 315502 | 2020.68 | 781 | 765 | 155.8 |
| A | 12 | 189 | 75882 | 482.27 | 781 | 765 | 155.8 |
| B | 3 | 64 | 209621 | 1417.14 | 798 | 777 | 147.4 |
| B | 0 | 189 | 76735 | 515.42 | 798 | 777 | 147.4 |
| B | 0 | 197 | 22206 | 145.41 | 798 | 777 | 147.4 |
| C | 3 | 233 | 190877 | 1071.24 | 782 | 788 | 177.4 |
| C | 9 | 236 | 20138 | 109.05 | 782 | 788 | 177.4 |
| C | 10 | 22 | 11150 | 58.39 | 782 | 788 | 177.4 |
| D | 2 | 16 | 74173 | 400.46 | 764 | 742 | 183.4 |
| D | 2 | 33 | 24503 | 129.58 | 764 | 742 | 183.4 |
| D | 2 | 152 | 24433 | 129.2 | 764 | 742 | 183.4 |
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 |  |