Observation information
- date-obs: 2018-04-10
- time-obs: 14:27:52.836900000
- date-end: 2018-04-11
- time-end: 00:53:09.724900000
- obs_id: T02_040T01_9000002030
- exposure: 18537.3060835
- sourceid: Swift J1756.9-2508
- observer: manoneeta
- ra_pnt: 269.239
- dec_pnt: -25.10772
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_040T01_9000002030cztM0_level2.fits
| modeM0/AS1T02_040T01_9000002030cztM0_level2_quad_clean.evt
|
| Size (bytes) | 313,755,840 | 332,997,120 |
| Size | 299.2 MB
| 317.6 MB
|
| Events in quadrant A | 1,909,508 | 2,056,413 |
| Events in quadrant B | 1,850,702 | 2,200,740 |
| Events in quadrant C | 1,870,412 | 1,882,196 |
| Events in quadrant D | 1,598,464 | 1,672,358 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 674 | 0 |
| B | 0 | 674 | 0 |
| C | 0 | 674 | 0 |
| D | 0 | 674 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 68449 | 0 |
| B | 0 | 72802 | 0 |
| C | 0 | 67763 | 0 |
| D | 0 | 86193 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 43 | 0 |
| B | 0 | 42 | 0 |
| C | 0 | 42 | 0 |
| D | 0 | 42 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 33078 | 205 | 0.619747% |
| B | 33078 | 409 | 1.236471% |
| C | 33078 | 135 | 0.408126% |
| D | 33078 | 838 | 2.533406% |
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 | 37518 | 33078 | 0 | 0 | 0.00% | 0.00% |  |
| B | 37518 | 33078 | 0 | 0 | 0.00% | 0.00% |  |
| C | 37518 | 33078 | 0 | 0 | 0.00% | 0.00% |  |
| D | 37518 | 33078 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 1883 | 11.23 | 496 | 463 | 126.4 |
| A | 9 | 19 | 1576 | 8.8 | 496 | 463 | 126.4 |
| A | 7 | 110 | 1554 | 8.63 | 496 | 463 | 126.4 |
| B | 2 | 9 | 1549 | 11.19 | 487 | 465 | 96.9 |
| B | 3 | 17 | 1246 | 8.06 | 487 | 465 | 96.9 |
| B | 5 | 225 | 1209 | 7.68 | 487 | 465 | 96.9 |
| C | 12 | 241 | 1298 | 6.54 | 493 | 457 | 128.7 |
| C | 2 | 191 | 1278 | 6.38 | 493 | 457 | 128.7 |
| C | 3 | 126 | 1253 | 6.19 | 493 | 457 | 128.7 |
| D | 6 | 231 | 1158 | 5.93 | 455 | 412 | 125.7 |
| D | 3 | 14 | 1145 | 5.83 | 455 | 412 | 125.7 |
| D | 3 | 31 | 1105 | 5.51 | 455 | 412 | 125.7 |
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 |  |