Observation information
- date-obs: 2015-12-14
- time-obs: 04:19:01.449000000
- date-end: 2015-12-14
- time-end: 06:19:18.041600000
- obs_id: P01_997T03_9000000216
- exposure: 5958.20597281
- 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_01142cztM0_level2.evt
| modeM0/AS1P01_997T03_9000000216_01142cztM0_level2_quad_clean.evt
|
| Size (bytes) | 925,358,400 | 96,108,480 |
| Size | 882.5 MB
| 91.7 MB
|
| Events in quadrant A | 7,062,025 | 637,120 |
| Events in quadrant B | 7,358,091 | 641,834 |
| Events in quadrant C | 7,012,421 | 609,925 |
| Events in quadrant D | 6,193,745 | 603,229 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25275 | 2 |
| B | 0 | 26092 | 1 |
| C | 0 | 25072 | 1 |
| D | 0 | 22698 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5992 | 12 | 0.200267% |
| B | 5992 | 13 | 0.216956% |
| C | 5992 | 13 | 0.216956% |
| D | 5992 | 1 | 0.016689% |
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 | 7217 | 5993 | 133 | 133 | 1.84% | 2.22% |  |
| B | 7217 | 5992 | 171 | 171 | 2.37% | 2.85% |  |
| C | 7217 | 5993 | 167 | 167 | 2.31% | 2.79% |  |
| D | 7217 | 5993 | 86 | 86 | 1.19% | 1.44% |  |
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 | 127 | 21027 | 43.82 | 1833 | 1843 | 437.7 |
| A | 11 | 79 | 9911 | 18.43 | 1833 | 1843 | 437.7 |
| A | 15 | 233 | 7541 | 13.02 | 1833 | 1843 | 437.7 |
| B | 15 | 22 | 45653 | 98.0 | 1914 | 1928 | 446.2 |
| B | 5 | 249 | 9636 | 17.28 | 1914 | 1928 | 446.2 |
| B | 0 | 191 | 9333 | 16.6 | 1914 | 1928 | 446.2 |
| C | 15 | 241 | 271629 | 575.24 | 1693 | 1742 | 469.2 |
| C | 9 | 52 | 59319 | 122.72 | 1693 | 1742 | 469.2 |
| C | 3 | 111 | 19392 | 37.62 | 1693 | 1742 | 469.2 |
| D | 13 | 252 | 7953 | 12.34 | 1655 | 1713 | 505.7 |
| D | 10 | 154 | 5759 | 8.0 | 1655 | 1713 | 505.7 |
| D | 13 | 138 | 5683 | 7.85 | 1655 | 1713 | 505.7 |
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 |  |