Observation information
- date-obs: 2017-08-14
- time-obs: 06:39:55.309700000
- date-end: 2017-08-14
- time-end: 08:49:00.308700000
- obs_id: A03_039T01_9000001462
- exposure: 3894.83426069
- sourceid: 4U 1735-44
- observer: anjali
- ra_pnt: 264.7429
- dec_pnt: -44.45
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_039T01_9000001462_10156cztM0_level2.evt
| modeM0/AS1A03_039T01_9000001462_10156cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,942,080 | 76,993,920 |
| Size | 468.2 MB
| 73.4 MB
|
| Events in quadrant A | 3,107,234 | 474,841 |
| Events in quadrant B | 3,440,817 | 477,596 |
| Events in quadrant C | 3,026,400 | 482,953 |
| Events in quadrant D | 4,850,394 | 440,662 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 2 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13556 | 60 |
| B | 0 | 14314 | 65 |
| C | 0 | 13519 | 62 |
| D | 0 | 18637 | 232 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6537 | 52 | 0.795472% |
| B | 6536 | 108 | 1.652387% |
| C | 6536 | 49 | 0.749694% |
| D | 6514 | 521 | 7.998158% |
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 | 7619 | 6562 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7619 | 6564 | 34 | 34 | 0.45% | 0.52% |  |
| C | 7619 | 6564 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7619 | 6549 | 481 | 481 | 6.31% | 7.34% |  |
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 | 15 | 32612 | 198.68 | 788 | 772 | 160.3 |
| A | 15 | 174 | 26115 | 158.14 | 788 | 772 | 160.3 |
| A | 15 | 223 | 7939 | 44.72 | 788 | 772 | 160.3 |
| B | 4 | 239 | 123403 | 820.41 | 789 | 769 | 149.5 |
| B | 15 | 85 | 84512 | 560.23 | 789 | 769 | 149.5 |
| B | 0 | 214 | 79291 | 525.3 | 789 | 769 | 149.5 |
| C | 14 | 234 | 18758 | 101.1 | 770 | 774 | 177.9 |
| C | 14 | 67 | 5804 | 28.28 | 770 | 774 | 177.9 |
| C | 13 | 61 | 5758 | 28.02 | 770 | 774 | 177.9 |
| D | 1 | 52 | 1553716 | 8012.64 | 728 | 714 | 193.8 |
| D | 8 | 195 | 302661 | 1557.88 | 728 | 714 | 193.8 |
| D | 2 | 16 | 56052 | 285.51 | 728 | 714 | 193.8 |
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 |  |