Observation information
- date-obs: 2018-02-20
- time-obs: 18:21:45.756700000
- date-end: 2018-02-21
- time-end: 04:25:38.730900000
- obs_id: T02_004T01_9000001910
- exposure: 21882.2727334
- sourceid: Swift J1658.2-4242
- observer: aruberi
- ra_pnt: 254.5526
- dec_pnt: -42.69847
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T02_004T01_9000001910cztM0_level2_bc.evt
| modeM0/AS1T02_004T01_9000001910cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,282,645,440 | 440,130,240 |
Size | 1.2 GB
| 419.7 MB
|
Events in quadrant A | 7,823,093 | 2,842,374 |
Events in quadrant B | 11,427,233 | 2,798,521 |
Events in quadrant C | 6,399,517 | 2,863,484 |
Events in quadrant D | 11,068,987 | 2,686,898 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 638 | 0 |
B | 0 | 638 | 0 |
C | 0 | 638 | 0 |
D | 0 | 638 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 49 | 0 |
B | 0 | 49 | 0 |
C | 0 | 49 | 0 |
D | 0 | 49 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 70292 | 0 |
B | 0 | 87962 | 0 |
C | 0 | 64125 | 0 |
D | 0 | 78865 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 31128 | 458 | 1.471344% |
B | 31128 | 2868 | 9.213570% |
C | 31128 | 178 | 0.571832% |
D | 31128 | 1228 | 3.945001% |
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 | 36235 | 31132 | 6 | 6 | 0.02% | 0.02% |  |
B | 36235 | 31109 | 143 | 143 | 0.39% | 0.46% |  |
C | 36235 | 31131 | 1 | 1 | 0.00% | 0.00% |  |
D | 36235 | 31132 | 352 | 352 | 0.97% | 1.13% |  |
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 | 189 | 803716 | 2289.69 | 1590 | 1559 | 350.3 |
A | 15 | 223 | 299909 | 851.62 | 1590 | 1559 | 350.3 |
A | 1 | 162 | 207851 | 588.84 | 1590 | 1559 | 350.3 |
B | 0 | 85 | 2611479 | 8884.56 | 1544 | 1505 | 293.8 |
B | 4 | 239 | 1587312 | 5398.21 | 1544 | 1505 | 293.8 |
B | 3 | 64 | 776031 | 2636.55 | 1544 | 1505 | 293.8 |
C | 14 | 234 | 141157 | 395.06 | 1584 | 1564 | 353.3 |
C | 0 | 207 | 51061 | 140.08 | 1584 | 1564 | 353.3 |
C | 13 | 61 | 9360 | 22.06 | 1584 | 1564 | 353.3 |
D | 1 | 52 | 4050148 | 11118.88 | 1554 | 1501 | 364.1 |
D | 8 | 195 | 662014 | 1813.98 | 1554 | 1501 | 364.1 |
D | 2 | 14 | 184396 | 502.29 | 1554 | 1501 | 364.1 |
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 |  |