Observation information
- date-obs: 2015-12-15
- time-obs: 09:55:33.162800000
- date-end: 2015-12-15
- time-end: 11:56:10.016400000
- obs_id: P01_997T03_9000000216
- exposure: 6470.30532664
- 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_01160cztM0_level2.evt
| modeM0/AS1P01_997T03_9000000216_01160cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,042,418,880 | 101,013,120 |
| Size | 994.1 MB
| 96.3 MB
|
| Events in quadrant A | 8,049,612 | 665,969 |
| Events in quadrant B | 8,081,899 | 654,112 |
| Events in quadrant C | 7,732,629 | 642,240 |
| Events in quadrant D | 7,273,206 | 642,373 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28527 | 2 |
| B | 0 | 28620 | 1 |
| C | 0 | 27599 | 1 |
| D | 0 | 26227 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 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 | 6512 | 82 | 1.259214% |
| B | 6512 | 34 | 0.522113% |
| C | 6512 | 32 | 0.491400% |
| D | 6512 | 67 | 1.028870% |
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 | 7237 | 6512 | 325 | 325 | 4.49% | 4.99% |  |
| B | 7237 | 6512 | 290 | 290 | 4.01% | 4.45% |  |
| C | 7237 | 6512 | 232 | 232 | 3.21% | 3.56% |  |
| D | 7237 | 6512 | 223 | 223 | 3.08% | 3.42% |  |
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 | 104378 | 208.82 | 2040 | 2059 | 490.0 |
| A | 15 | 127 | 89968 | 179.41 | 2040 | 2059 | 490.0 |
| A | 12 | 133 | 30603 | 58.25 | 2040 | 2059 | 490.0 |
| B | 15 | 22 | 64569 | 128.4 | 2065 | 2073 | 486.7 |
| B | 0 | 190 | 43926 | 85.99 | 2065 | 2073 | 486.7 |
| B | 6 | 53 | 40561 | 79.07 | 2065 | 2073 | 486.7 |
| C | 15 | 241 | 314928 | 599.06 | 1877 | 1944 | 522.5 |
| C | 9 | 83 | 38839 | 70.62 | 1877 | 1944 | 522.5 |
| C | 3 | 111 | 23287 | 40.85 | 1877 | 1944 | 522.5 |
| D | 10 | 125 | 150589 | 258.99 | 1860 | 1923 | 574.0 |
| D | 2 | 152 | 89157 | 151.97 | 1860 | 1923 | 574.0 |
| D | 13 | 73 | 45405 | 75.75 | 1860 | 1923 | 574.0 |
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 |  |