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: 34643.1453415
- 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.fits
| modeM0/AS1T01_177T01_9000001344cztM0_level2_quad_clean.evt
|
| Size (bytes) | 638,807,040 | 604,800,000 |
| Size | 609.2 MB
| 576.8 MB
|
| Events in quadrant A | 3,888,820 | 3,609,593 |
| Events in quadrant B | 3,712,918 | 3,536,927 |
| Events in quadrant C | 3,788,928 | 3,368,091 |
| Events in quadrant D | 3,313,426 | 3,159,623 |
Level1 data integrity
| 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 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1372 | 0 |
| B | 0 | 1376 | 0 |
| C | 0 | 1382 | 0 |
| D | 0 | 1374 | 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 | 68160 | 0 | 0 | 0.00% | 0.00% |  |
| B | 79809 | 68138 | 0 | 0 | 0.00% | 0.00% |  |
| C | 79809 | 68165 | 0 | 0 | 0.00% | 0.00% |  |
| D | 79809 | 68118 | 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 | 3637 | 10.48 | 1010 | 942 | 257.2 |
| A | 7 | 110 | 3203 | 8.79 | 1010 | 942 | 257.2 |
| A | 9 | 19 | 2916 | 7.68 | 1010 | 942 | 257.2 |
| B | 2 | 9 | 3040 | 10.75 | 979 | 931 | 196.3 |
| B | 12 | 226 | 2522 | 8.11 | 979 | 931 | 196.3 |
| B | 3 | 17 | 2493 | 7.96 | 979 | 931 | 196.3 |
| C | 1 | 80 | 2780 | 7.01 | 1000 | 924 | 264.7 |
| C | 1 | 81 | 2760 | 6.94 | 1000 | 924 | 264.7 |
| C | 12 | 241 | 2592 | 6.3 | 1000 | 924 | 264.7 |
| D | 6 | 231 | 2539 | 6.64 | 943 | 857 | 253.2 |
| D | 3 | 14 | 2416 | 6.16 | 943 | 857 | 253.2 |
| D | 1 | 19 | 2356 | 5.92 | 943 | 857 | 253.2 |
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 |  |