Observation information
- date-obs: 2017-01-27
- time-obs: 19:52:55.201100000
- date-end: 2017-01-27
- time-end: 22:26:58.198000000
- obs_id: A02_111T01_9000000986
- exposure: 5361.30317764
- sourceid: Cen X-3
- observer: nirmal
- ra_pnt: 170.3158
- dec_pnt: -60.623
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_111T01_9000000986_07220cztM0_level2.evt
| modeM0/AS1A02_111T01_9000000986_07220cztM0_level2_quad_clean.evt
|
| Size (bytes) | 476,798,400 | 106,453,440 |
| Size | 454.7 MB
| 101.5 MB
|
| Events in quadrant A | 3,423,425 | 695,023 |
| Events in quadrant B | 3,610,728 | 711,500 |
| Events in quadrant C | 3,155,857 | 690,114 |
| Events in quadrant D | 3,779,591 | 645,139 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14821 | 3 |
| B | 0 | 15555 | 2 |
| C | 0 | 14173 | 2 |
| D | 0 | 16047 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6918 | 57 | 0.823938% |
| B | 6918 | 114 | 1.647875% |
| C | 6918 | 25 | 0.361376% |
| D | 6918 | 126 | 1.821336% |
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 | 9243 | 6919 | 8 | 8 | 0.09% | 0.12% |  |
| B | 9243 | 6919 | 33 | 33 | 0.36% | 0.48% |  |
| C | 9243 | 6919 | 0 | 0 | 0.00% | 0.00% |  |
| D | 9243 | 6919 | 103 | 103 | 1.11% | 1.49% |  |
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 | 260695 | 1560.91 | 816 | 798 | 166.5 |
| A | 0 | 226 | 7695 | 41.42 | 816 | 798 | 166.5 |
| A | 12 | 194 | 7219 | 38.56 | 816 | 798 | 166.5 |
| B | 10 | 16 | 148139 | 938.84 | 828 | 807 | 156.9 |
| B | 0 | 214 | 102048 | 645.14 | 828 | 807 | 156.9 |
| B | 4 | 81 | 82609 | 521.27 | 828 | 807 | 156.9 |
| C | 9 | 68 | 12342 | 62.66 | 799 | 805 | 184.1 |
| C | 1 | 16 | 7781 | 37.89 | 799 | 805 | 184.1 |
| C | 12 | 4 | 7153 | 34.48 | 799 | 805 | 184.1 |
| D | 2 | 216 | 450147 | 2366.39 | 777 | 753 | 189.9 |
| D | 2 | 14 | 203993 | 1070.21 | 777 | 753 | 189.9 |
| D | 2 | 136 | 73358 | 382.32 | 777 | 753 | 189.9 |
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 |  |