Observation information
- date-obs: 2021-11-15
- time-obs: 12:58:46.648500000
- date-end: 2021-11-15
- time-end: 13:54:47.648400000
- obs_id: A11_096T01_9000004766
- exposure: 760.733922705
- sourceid: 4U 0836-429
- observer: duncan
- ra_pnt: 129.3458
- dec_pnt: -42.895
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_096T01_9000004766_33163cztM0_level2.evt
| modeM0/AS1A11_096T01_9000004766_33163cztM0_level2_quad_clean.evt
|
| Size (bytes) | 133,364,160 | 18,668,160 |
| Size | 127.2 MB
| 17.8 MB
|
| Events in quadrant A | 790,225 | 119,016 |
| Events in quadrant B | 1,072,171 | 114,329 |
| Events in quadrant C | 770,531 | 112,837 |
| Events in quadrant D | 1,301,233 | 107,101 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 51 | 19 |
| B | 0 | 51 | 17 |
| C | 0 | 49 | 21 |
| D | 0 | 51 | 19 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5597 | 2441 |
| B | 0 | 8142 | 4024 |
| C | 0 | 5703 | 2500 |
| D | 0 | 9377 | 4422 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 4 |
| B | 0 | 5 | 5 |
| C | 0 | 6 | 6 |
| D | 0 | 7 | 6 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1546 | 0 | 0.000000% |
| B | 1450 | 72 | 4.965517% |
| C | 1568 | 3 | 0.191327% |
| D | 1431 | 10 | 0.698812% |
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 | 2215 | 1688 | 0 | 0 | 0.00% | 0.00% |  |
| B | 2178 | 1619 | 28 | 28 | 1.29% | 1.73% |  |
| C | 2192 | 1720 | 2 | 2 | 0.09% | 0.12% |  |
| D | 2108 | 1587 | 8 | 8 | 0.38% | 0.50% |  |
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 | 13 | 6 | 4276 | 96.79 | 202 | 199 | 42.1 |
| A | 13 | 254 | 3076 | 68.3 | 202 | 199 | 42.1 |
| A | 0 | 31 | 2711 | 59.64 | 202 | 199 | 42.1 |
| B | 0 | 219 | 157381 | 4376.14 | 183 | 180 | 35.9 |
| B | 5 | 172 | 113989 | 3168.2 | 183 | 180 | 35.9 |
| B | 15 | 85 | 28124 | 777.9 | 183 | 180 | 35.9 |
| C | 0 | 207 | 6846 | 146.95 | 191 | 193 | 45.3 |
| C | 1 | 241 | 3577 | 74.75 | 191 | 193 | 45.3 |
| C | 1 | 23 | 3499 | 73.02 | 191 | 193 | 45.3 |
| D | 8 | 195 | 435109 | 9820.77 | 174 | 170 | 44.3 |
| D | 10 | 203 | 86762 | 1955.22 | 174 | 170 | 44.3 |
| D | 1 | 47 | 23953 | 537.01 | 174 | 170 | 44.3 |
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 |  |