Observation information
- date-obs: 2015-12-02
- time-obs: 10-11-26.000006148
- date-end: 2015-12-02
- time-end: 12-14-48.000006116
- obs_id: P01_998T01_9000000188
- exposure: 6176.74996126
- sourceid: NGC188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_998T01_9000000188_00968cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00968cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,026,077,760 | 100,025,280 |
| Size | 978.5 MB
| 95.4 MB
|
| Events in quadrant A | 7,451,176 | 668,021 |
| Events in quadrant B | 8,388,932 | 659,418 |
| Events in quadrant C | 7,805,283 | 636,452 |
| Events in quadrant D | 7,017,670 | 631,678 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26561 | 0 |
| B | 0 | 29336 | 0 |
| C | 0 | 27575 | 0 |
| D | 0 | 25231 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6217 | 28 | 0.450378% |
| B | 6217 | 51 | 0.820331% |
| C | 6217 | 26 | 0.418208% |
| D | 6218 | 33 | 0.530717% |
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 | 7402 | 6218 | 167 | 167 | 2.26% | 2.69% |  |
| B | 7402 | 6218 | 355 | 355 | 4.80% | 5.71% |  |
| C | 7402 | 6218 | 201 | 201 | 2.72% | 3.23% |  |
| D | 7403 | 6219 | 137 | 137 | 1.85% | 2.20% |  |
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 | 247 | 27036 | 54.5 | 1931 | 1946 | 460.3 |
| A | 12 | 189 | 12135 | 22.13 | 1931 | 1946 | 460.3 |
| A | 13 | 17 | 11635 | 21.05 | 1931 | 1946 | 460.3 |
| B | 0 | 153 | 435853 | 933.99 | 1984 | 1990 | 464.5 |
| B | 5 | 249 | 123043 | 260.59 | 1984 | 1990 | 464.5 |
| B | 0 | 220 | 120925 | 256.03 | 1984 | 1990 | 464.5 |
| C | 10 | 34 | 393636 | 789.36 | 1806 | 1868 | 496.3 |
| C | 15 | 241 | 283059 | 566.56 | 1806 | 1868 | 496.3 |
| C | 9 | 52 | 26671 | 49.97 | 1806 | 1868 | 496.3 |
| D | 1 | 4 | 188346 | 341.92 | 1795 | 1856 | 545.4 |
| D | 12 | 188 | 43784 | 76.87 | 1795 | 1856 | 545.4 |
| D | 10 | 125 | 20168 | 33.57 | 1795 | 1856 | 545.4 |
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 |  |