Observation information
- date-obs: 2017-06-27
- time-obs: 14:13:14.680400000
- date-end: 2017-06-27
- time-end: 16:23:09.677800000
- obs_id: T01_177T01_9000001344
- exposure: 4677.08874233
- 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_9000001344_09451cztM0_level2.evt
| modeM0/AS1T01_177T01_9000001344_09451cztM0_level2_quad_clean.evt
|
| Size (bytes) | 478,198,080 | 105,022,080 |
| Size | 456.0 MB
| 100.2 MB
|
| Events in quadrant A | 3,505,786 | 705,109 |
| Events in quadrant B | 3,663,404 | 692,370 |
| Events in quadrant C | 3,104,395 | 675,795 |
| Events in quadrant D | 3,779,643 | 666,413 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14477 | 3 |
| B | 0 | 14991 | 2 |
| C | 0 | 13352 | 2 |
| D | 0 | 15395 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6322 | 80 | 1.265422% |
| B | 6322 | 143 | 2.261942% |
| C | 6322 | 38 | 0.601076% |
| D | 6322 | 104 | 1.645049% |
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 | 7637 | 6323 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7637 | 6323 | 71 | 71 | 0.93% | 1.12% |  |
| C | 7637 | 6323 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7637 | 6323 | 66 | 66 | 0.86% | 1.04% |  |
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 | 158495 | 927.21 | 835 | 819 | 170.1 |
| A | 1 | 162 | 62895 | 365.04 | 835 | 819 | 170.1 |
| A | 1 | 178 | 22678 | 128.54 | 835 | 819 | 170.1 |
| B | 0 | 214 | 438112 | 2837.19 | 816 | 800 | 154.1 |
| B | 0 | 219 | 21370 | 133.45 | 816 | 800 | 154.1 |
| B | 0 | 229 | 21277 | 132.85 | 816 | 800 | 154.1 |
| C | 14 | 67 | 9157 | 45.97 | 790 | 796 | 181.9 |
| C | 4 | 254 | 6150 | 29.44 | 790 | 796 | 181.9 |
| C | 13 | 61 | 6130 | 29.33 | 790 | 796 | 181.9 |
| D | 12 | 227 | 421676 | 2066.36 | 801 | 780 | 203.7 |
| D | 1 | 52 | 148903 | 727.2 | 801 | 780 | 203.7 |
| D | 7 | 71 | 68256 | 331.27 | 801 | 780 | 203.7 |
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 |  |