Observation information
- date-obs: 2017-07-31
- time-obs: 23:44:55.654200000
- date-end: 2017-08-01
- time-end: 02:01:47.062800000
- obs_id: G07_047T01_9000001424
- exposure: 2222.8169525
- sourceid: 4U 1820-30
- observer: jsyadav
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_047T01_9000001424_09960cztM0_level2.evt
| modeM0/AS1G07_047T01_9000001424_09960cztM0_level2_quad_clean.evt
|
| Size (bytes) | 241,156,800 | 45,792,000 |
| Size | 230.0 MB
| 43.7 MB
|
| Events in quadrant A | 1,635,570 | 302,592 |
| Events in quadrant B | 1,723,275 | 290,302 |
| Events in quadrant C | 1,586,271 | 312,015 |
| Events in quadrant D | 2,128,103 | 243,758 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13208 | 5930 |
| B | 0 | 16542 | 9240 |
| C | 0 | 13085 | 5978 |
| D | 0 | 22885 | 14605 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 69 |
| B | 0 | 132 | 56 |
| C | 0 | 129 | 56 |
| D | 0 | 129 | 51 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 4 |
| B | 0 | 17 | 8 |
| C | 0 | 17 | 5 |
| D | 0 | 18 | 5 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3543 | 13 | 0.366921% |
| B | 3349 | 34 | 1.015228% |
| C | 3494 | 2 | 0.057241% |
| D | 2910 | 35 | 1.202749% |
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 | 7608 | 4503 | 2 | 2 | 0.03% | 0.04% |  |
| B | 7602 | 4234 | 12 | 12 | 0.16% | 0.28% |  |
| C | 7598 | 4445 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7577 | 3738 | 31 | 31 | 0.41% | 0.83% |  |
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 | 15 | 239 | 13758 | 153.14 | 419 | 410 | 87.2 |
| A | 15 | 174 | 5619 | 59.76 | 419 | 410 | 87.2 |
| A | 13 | 253 | 3767 | 38.51 | 419 | 410 | 87.2 |
| B | 4 | 81 | 98853 | 1255.53 | 400 | 390 | 78.4 |
| B | 0 | 214 | 22736 | 284.94 | 400 | 390 | 78.4 |
| B | 0 | 219 | 18776 | 234.44 | 400 | 390 | 78.4 |
| C | 13 | 61 | 2926 | 26.26 | 406 | 407 | 95.9 |
| C | 8 | 222 | 1481 | 11.2 | 406 | 407 | 95.9 |
| C | 14 | 67 | 1266 | 8.96 | 406 | 407 | 95.9 |
| D | 1 | 52 | 285413 | 3375.13 | 329 | 321 | 84.5 |
| D | 8 | 195 | 187174 | 2212.1 | 329 | 321 | 84.5 |
| D | 2 | 16 | 165717 | 1958.08 | 329 | 321 | 84.5 |
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 |  |