Observation information
- date-obs: 2018-07-18
- time-obs: 18:29:52.367500000
- date-end: 2018-07-18
- time-end: 20:42:44.372600000
- obs_id: A04_218T08_9000002236
- exposure: 4547.2637151
- 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_15167cztM0_level2.evt
| modeM0/AS1A04_218T08_9000002236_15167cztM0_level2_quad_clean.evt
|
| Size (bytes) | 440,916,480 | 98,291,520 |
| Size | 420.5 MB
| 93.7 MB
|
| Events in quadrant A | 3,471,709 | 639,054 |
| Events in quadrant B | 3,120,181 | 659,743 |
| Events in quadrant C | 3,123,571 | 642,691 |
| Events in quadrant D | 3,217,214 | 603,102 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14615 | 3 |
| B | 0 | 13372 | 2 |
| C | 0 | 13191 | 2 |
| D | 0 | 13958 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6191 | 21 | 0.339202% |
| B | 6191 | 37 | 0.597642% |
| C | 6191 | 8 | 0.129220% |
| D | 6191 | 47 | 0.759167% |
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 | 7492 | 6193 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7492 | 6193 | 3 | 3 | 0.04% | 0.05% |  |
| C | 7492 | 6193 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7492 | 6193 | 31 | 31 | 0.41% | 0.50% |  |
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 | 513449 | 3327.67 | 761 | 745 | 154.1 |
| A | 11 | 29 | 21440 | 134.32 | 761 | 745 | 154.1 |
| A | 12 | 189 | 11875 | 72.24 | 761 | 745 | 154.1 |
| B | 3 | 64 | 46367 | 315.78 | 771 | 753 | 144.4 |
| B | 0 | 230 | 25513 | 171.41 | 771 | 753 | 144.4 |
| B | 12 | 111 | 16119 | 106.38 | 771 | 753 | 144.4 |
| C | 3 | 233 | 218967 | 1285.26 | 739 | 744 | 169.8 |
| C | 9 | 236 | 20094 | 113.96 | 739 | 744 | 169.8 |
| C | 13 | 61 | 5313 | 26.91 | 739 | 744 | 169.8 |
| D | 2 | 16 | 251267 | 1415.55 | 728 | 706 | 177.0 |
| D | 10 | 70 | 101631 | 570.18 | 728 | 706 | 177.0 |
| D | 5 | 222 | 54553 | 304.21 | 728 | 706 | 177.0 |
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 |  |