Observation information
- date-obs: 2015-12-15
- time-obs: 18:31:36.125100000
- date-end: 2015-12-15
- time-end: 20:42:17.009400000
- obs_id: P01_997T03_9000000216
- exposure: 5787.80461472
- sourceid: 4U 1847+78
- observer: annapurni
- ra_pnt: 280.5374
- dec_pnt: 79.77142
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_997T03_9000000216_01165cztM0_level2.evt
| modeM0/AS1P01_997T03_9000000216_01165cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,609,320,960 | 88,027,200 |
| Size | 1.5 GB
| 83.9 MB
|
| Events in quadrant A | 8,445,100 | 700,340 |
| Events in quadrant B | 9,119,606 | 693,623 |
| Events in quadrant C | 8,625,441 | 676,723 |
| Events in quadrant D | 22,073,289 | 90,950 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30196 | 2 |
| B | 0 | 32173 | 1 |
| C | 0 | 30721 | 1 |
| D | 0 | 71851 | 1 |
| 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 M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7196 | 4 | 0.055586% |
| B | 7196 | 37 | 0.514175% |
| C | 7196 | 11 | 0.152863% |
| D | 7196 | 7127 | 99.041134% |
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 | 7841 | 7196 | 158 | 158 | 2.02% | 2.20% |  |
| B | 7840 | 7196 | 324 | 324 | 4.13% | 4.50% |  |
| C | 7840 | 7196 | 140 | 140 | 1.79% | 1.95% |  |
| D | 7840 | 7195 | 7188 | 7188 | 91.68% | 99.90% |  |
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 | 243 | 69209 | 127.37 | 2183 | 2199 | 526.1 |
| A | 11 | 79 | 8946 | 12.82 | 2183 | 2199 | 526.1 |
| A | 3 | 111 | 7147 | 9.4 | 2183 | 2199 | 526.1 |
| B | 14 | 53 | 153349 | 279.18 | 2283 | 2290 | 541.1 |
| B | 5 | 249 | 124989 | 226.76 | 2283 | 2290 | 541.1 |
| B | 6 | 53 | 52594 | 92.97 | 2283 | 2290 | 541.1 |
| C | 15 | 241 | 344870 | 584.36 | 2105 | 2183 | 586.4 |
| C | 3 | 111 | 25632 | 39.99 | 2105 | 2183 | 586.4 |
| C | 3 | 79 | 16977 | 25.23 | 2105 | 2183 | 586.4 |
| D | 1 | 239 | 20234255 | 144799.14 | 454 | 466 | 139.7 |
| D | 2 | 16 | 115349 | 822.13 | 454 | 466 | 139.7 |
| D | 10 | 125 | 7320 | 49.05 | 454 | 466 | 139.7 |
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 |  |