Observation information
- date-obs: 2015-12-15
- time-obs: 11:45:26.164500000
- date-end: 2015-12-15
- time-end: 13:40:52.015500000
- obs_id: P01_997T03_9000000216
- exposure: 6711.92010134
- 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_01161cztM0_level2.evt
| modeM0/AS1P01_997T03_9000000216_01161cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,108,226,880 | 102,067,200 |
| Size | 1.0 GB
| 97.3 MB
|
| Events in quadrant A | 8,321,077 | 671,962 |
| Events in quadrant B | 8,732,390 | 665,237 |
| Events in quadrant C | 8,344,352 | 643,441 |
| Events in quadrant D | 7,717,570 | 639,769 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29509 | 2 |
| B | 0 | 30707 | 1 |
| C | 0 | 29566 | 1 |
| D | 0 | 27753 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6751 | 42 | 0.622130% |
| B | 6751 | 39 | 0.577692% |
| C | 6751 | 56 | 0.829507% |
| D | 6751 | 80 | 1.185010% |
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 | 6926 | 6752 | 404 | 404 | 5.83% | 5.98% |  |
| B | 6926 | 6751 | 469 | 469 | 6.77% | 6.95% |  |
| C | 6926 | 6751 | 343 | 343 | 4.95% | 5.08% |  |
| D | 6926 | 6751 | 370 | 370 | 5.34% | 5.48% |  |
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 | 4 | 32 | 76566 | 144.23 | 2138 | 2152 | 516.0 |
| A | 12 | 243 | 33144 | 60.07 | 2138 | 2152 | 516.0 |
| A | 13 | 9 | 11686 | 18.48 | 2138 | 2152 | 516.0 |
| B | 6 | 53 | 119962 | 226.9 | 2192 | 2206 | 519.0 |
| B | 15 | 22 | 66879 | 124.62 | 2192 | 2206 | 519.0 |
| B | 8 | 234 | 48011 | 88.26 | 2192 | 2206 | 519.0 |
| C | 15 | 241 | 332485 | 586.54 | 2018 | 2096 | 563.3 |
| C | 9 | 83 | 53631 | 91.49 | 2018 | 2096 | 563.3 |
| C | 3 | 111 | 28203 | 46.35 | 2018 | 2096 | 563.3 |
| D | 13 | 73 | 120343 | 193.48 | 1977 | 2049 | 611.4 |
| D | 10 | 125 | 112606 | 180.83 | 1977 | 2049 | 611.4 |
| D | 2 | 152 | 37330 | 57.71 | 1977 | 2049 | 611.4 |
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 |  |