Observation information
- date-obs: 2018-05-10
- time-obs: 16:21:34.645100000
- date-end: 2018-05-10
- time-end: 17:16:09.643200000
- obs_id: A04_218T04_9000002086
- exposure: 2016.62061884
- sourceid: SWIFT J1835.0+3240
- observer: gulabd
- ra_pnt: 278.7641
- dec_pnt: 32.69635
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_218T04_9000002086_14144cztM0_level2.evt
| modeM0/AS1A04_218T04_9000002086_14144cztM0_level2_quad_clean.evt
|
| Size (bytes) | 245,721,600 | 41,970,240 |
| Size | 234.3 MB
| 40.0 MB
|
| Events in quadrant A | 1,481,819 | 266,364 |
| Events in quadrant B | 1,573,023 | 263,935 |
| Events in quadrant C | 1,720,747 | 270,440 |
| Events in quadrant D | 2,453,871 | 249,109 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6426 | 1 |
| B | 0 | 6762 | 1 |
| C | 0 | 6836 | 1 |
| D | 0 | 9246 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 62 | 0 |
| B | 0 | 62 | 0 |
| C | 0 | 62 | 0 |
| D | 0 | 62 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3099 | 13 | 0.419490% |
| B | 3099 | 18 | 0.580833% |
| C | 3099 | 10 | 0.322685% |
| D | 3099 | 230 | 7.421749% |
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 | 3100 | 3100 | 1 | 1 | 0.03% | 0.03% |  |
| B | 3100 | 3100 | 0 | 0 | 0.00% | 0.00% |  |
| C | 3100 | 3100 | 1 | 1 | 0.03% | 0.03% |  |
| D | 3100 | 3100 | 228 | 228 | 7.35% | 7.35% |  |
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 | 12 | 96 | 18225 | 229.96 | 376 | 369 | 77.6 |
| A | 12 | 189 | 6687 | 81.37 | 376 | 369 | 77.6 |
| A | 9 | 143 | 5547 | 66.69 | 376 | 369 | 77.6 |
| B | 0 | 189 | 81257 | 1118.09 | 376 | 367 | 72.3 |
| B | 12 | 111 | 8305 | 109.72 | 376 | 367 | 72.3 |
| B | 11 | 111 | 7034 | 92.15 | 376 | 367 | 72.3 |
| C | 3 | 233 | 252062 | 2893.26 | 372 | 373 | 87.0 |
| C | 10 | 22 | 8538 | 93.86 | 372 | 373 | 87.0 |
| C | 14 | 234 | 4407 | 46.37 | 372 | 373 | 87.0 |
| D | 1 | 52 | 542725 | 6161.68 | 361 | 351 | 88.0 |
| D | 7 | 80 | 396929 | 4505.35 | 361 | 351 | 88.0 |
| D | 8 | 195 | 59770 | 675.03 | 361 | 351 | 88.0 |
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 |  |