Observation information
- date-obs: 2017-06-27
- time-obs: 12:07:21.715800000
- date-end: 2017-06-28
- time-end: 10:17:29.653500000
- obs_id: T01_177T01_9000001344
- exposure: 41988.4368328
- sourceid: Swift J1357.2-0933
- observer: adegoke
- ra_pnt: 209.3201
- dec_pnt: -9.544042
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T01_177T01_9000001344cztM0_level2.evt
| modeM0/AS1T01_177T01_9000001344cztM0_level2_quad_clean.evt
|
Size (bytes) | 4,616,089,920 | 864,149,760 |
Size | 4.3 GB
| 824.1 MB
|
Events in quadrant A | 34,619,972 | 5,487,684 |
Events in quadrant B | 33,599,511 | 5,457,226 |
Events in quadrant C | 31,237,850 | 5,340,119 |
Events in quadrant D | 35,773,424 | 5,248,138 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1372 | 0 |
B | 0 | 1376 | 0 |
C | 0 | 1382 | 0 |
D | 0 | 1374 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 113 | 0 |
B | 0 | 113 | 0 |
C | 0 | 113 | 0 |
D | 0 | 113 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 146777 | 0 |
B | 0 | 144613 | 0 |
C | 0 | 140555 | 0 |
D | 0 | 153026 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 67725 | 855 | 1.262458% |
B | 67678 | 823 | 1.216052% |
C | 67711 | 547 | 0.807845% |
D | 67668 | 1022 | 1.510315% |
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 | 79809 | 68183 | 79 | 79 | 0.10% | 0.12% |  |
B | 79809 | 68155 | 117 | 117 | 0.15% | 0.17% |  |
C | 79809 | 68187 | 88 | 88 | 0.11% | 0.13% |  |
D | 79809 | 68139 | 525 | 525 | 0.66% | 0.77% |  |
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 | 8 | 5 | 1939516 | 1173.84 | 8173 | 8012 | 1645.5 |
A | 1 | 162 | 472002 | 281.98 | 8173 | 8012 | 1645.5 |
A | 14 | 111 | 266159 | 156.88 | 8173 | 8012 | 1645.5 |
B | 0 | 214 | 724117 | 467.19 | 8124 | 7943 | 1532.9 |
B | 5 | 255 | 422725 | 270.58 | 8124 | 7943 | 1532.9 |
B | 4 | 173 | 349706 | 222.95 | 8124 | 7943 | 1532.9 |
C | 4 | 254 | 358537 | 194.08 | 7838 | 7883 | 1806.7 |
C | 9 | 68 | 202415 | 107.67 | 7838 | 7883 | 1806.7 |
C | 14 | 234 | 109909 | 56.47 | 7838 | 7883 | 1806.7 |
D | 1 | 52 | 2000544 | 1032.07 | 7837 | 7649 | 1931.0 |
D | 12 | 227 | 900477 | 462.37 | 7837 | 7649 | 1931.0 |
D | 12 | 233 | 862952 | 442.94 | 7837 | 7649 | 1931.0 |
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 |  |