Observation information
- date-obs: 2018-03-09
- time-obs: 04:39:55.667500000
- date-end: 2018-03-09
- time-end: 06:49:56.671300000
- obs_id: A04_216T01_9000001968
- exposure: 5707.89669753
- sourceid: Cen X-3
- observer: shivangi
- ra_pnt: 170.3158
- dec_pnt: -60.62297
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_216T01_9000001968_13219cztM0_level2.evt
| modeM0/AS1A04_216T01_9000001968_13219cztM0_level2_quad_clean.evt
|
| Size (bytes) | 576,187,200 | 110,885,760 |
| Size | 549.5 MB
| 105.7 MB
|
| Events in quadrant A | 3,748,688 | 712,849 |
| Events in quadrant B | 4,350,073 | 726,755 |
| Events in quadrant C | 3,614,350 | 717,657 |
| Events in quadrant D | 5,209,330 | 660,128 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16471 | 2 |
| B | 0 | 18155 | 1 |
| C | 0 | 16303 | 1 |
| D | 0 | 21057 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7769 | 339 | 4.363496% |
| B | 7769 | 496 | 6.384348% |
| C | 7769 | 309 | 3.977346% |
| D | 7769 | 613 | 7.890333% |
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 | 7785 | 7771 | 4 | 4 | 0.05% | 0.05% |  |
| B | 7785 | 7771 | 90 | 90 | 1.16% | 1.16% |  |
| C | 7785 | 7771 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7785 | 7771 | 253 | 253 | 3.25% | 3.26% |  |
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 | 117223 | 610.31 | 929 | 905 | 190.6 |
| A | 8 | 15 | 28568 | 145.15 | 929 | 905 | 190.6 |
| A | 1 | 162 | 16086 | 79.65 | 929 | 905 | 190.6 |
| B | 4 | 239 | 449556 | 2510.13 | 929 | 904 | 178.7 |
| B | 0 | 197 | 169244 | 941.83 | 929 | 904 | 178.7 |
| B | 0 | 230 | 52293 | 287.51 | 929 | 904 | 178.7 |
| C | 15 | 208 | 13621 | 59.6 | 919 | 922 | 213.1 |
| C | 14 | 234 | 12946 | 56.43 | 919 | 922 | 213.1 |
| C | 13 | 61 | 6714 | 27.18 | 919 | 922 | 213.1 |
| D | 13 | 122 | 1433546 | 6693.82 | 890 | 860 | 214.0 |
| D | 8 | 195 | 351812 | 1639.72 | 890 | 860 | 214.0 |
| D | 2 | 234 | 28150 | 127.5 | 890 | 860 | 214.0 |
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 |  |