Observation information
- date-obs: 2015-12-02
- time-obs: 01-26-44.000006354
- date-end: 2015-12-02
- time-end: 03-30-56.000006315
- obs_id: P01_998T01_9000000188
- exposure: 6722.15416002
- 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_00962cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00962cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,428,186,240 | 98,818,560 |
| Size | 1.3 GB
| 94.2 MB
|
| Events in quadrant A | 8,215,953 | 666,104 |
| Events in quadrant B | 8,691,906 | 666,285 |
| Events in quadrant C | 9,428,196 | 652,704 |
| Events in quadrant D | 16,457,701 | 520,611 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29400 | 0 |
| B | 0 | 30723 | 0 |
| C | 0 | 32888 | 0 |
| D | 0 | 54164 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6971 | 9 | 0.129106% |
| B | 6971 | 18 | 0.258213% |
| C | 6972 | 4 | 0.057372% |
| D | 6972 | 2605 | 37.363741% |
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 | 7451 | 6972 | 163 | 163 | 2.19% | 2.34% |  |
| B | 7451 | 6972 | 233 | 233 | 3.13% | 3.34% |  |
| C | 7452 | 6973 | 289 | 289 | 3.88% | 4.14% |  |
| D | 7452 | 6973 | 4360 | 4360 | 58.51% | 62.53% |  |
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 | 14 | 170 | 91898 | 176.81 | 2109 | 2125 | 507.7 |
| A | 0 | 253 | 22691 | 40.5 | 2109 | 2125 | 507.7 |
| A | 12 | 189 | 13301 | 22.01 | 2109 | 2125 | 507.7 |
| B | 15 | 22 | 103250 | 194.22 | 2212 | 2219 | 520.2 |
| B | 8 | 234 | 80866 | 151.19 | 2212 | 2219 | 520.2 |
| B | 5 | 249 | 40927 | 74.41 | 2212 | 2219 | 520.2 |
| C | 10 | 34 | 1178110 | 2110.39 | 1996 | 2065 | 557.3 |
| C | 15 | 241 | 332567 | 593.08 | 1996 | 2065 | 557.3 |
| C | 9 | 144 | 33227 | 55.92 | 1996 | 2065 | 557.3 |
| D | 12 | 188 | 9499044 | 18452.0 | 1657 | 1712 | 514.7 |
| D | 11 | 131 | 557070 | 1078.98 | 1657 | 1712 | 514.7 |
| D | 1 | 4 | 205600 | 396.13 | 1657 | 1712 | 514.7 |
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 |  |