Observation information
- date-obs: 2018-02-23
- time-obs: 13:16:39.623800000
- date-end: 2018-02-23
- time-end: 13:54:47.623300000
- obs_id: T02_002T01_9000001914
- exposure: 2094.25384068
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_002T01_9000001914_13020cztM0_level2.evt
| modeM0/AS1T02_002T01_9000001914_13020cztM0_level2_quad_clean.evt
|
| Size (bytes) | 203,307,840 | 37,696,320 |
| Size | 193.9 MB
| 36.0 MB
|
| Events in quadrant A | 1,025,130 | 275,251 |
| Events in quadrant B | 2,811,554 | 177,977 |
| Events in quadrant C | 1,050,728 | 265,323 |
| Events in quadrant D | 1,112,114 | 257,415 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4616 | 0 |
| B | 0 | 9859 | 0 |
| C | 0 | 4811 | 0 |
| D | 0 | 4863 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 44 | 0 |
| B | 0 | 44 | 0 |
| C | 0 | 44 | 0 |
| D | 0 | 44 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2289 | 2 | 0.087374% |
| B | 2289 | 999 | 43.643512% |
| C | 2289 | 6 | 0.262123% |
| D | 2289 | 8 | 0.349498% |
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 | 2290 | 2290 | 0 | 0 | 0.00% | 0.00% |  |
| B | 2289 | 2289 | 593 | 593 | 25.91% | 25.91% |  |
| C | 2290 | 2290 | 5 | 5 | 0.22% | 0.22% |  |
| D | 2290 | 2290 | 4 | 4 | 0.17% | 0.17% |  |
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 | 189 | 19208 | 355.27 | 256 | 250 | 53.4 |
| A | 1 | 162 | 6612 | 119.22 | 256 | 250 | 53.4 |
| A | 15 | 223 | 3815 | 66.81 | 256 | 250 | 53.4 |
| B | 4 | 239 | 2044544 | 59539.97 | 171 | 167 | 34.3 |
| B | 3 | 64 | 35843 | 1039.02 | 171 | 167 | 34.3 |
| B | 3 | 209 | 24046 | 695.45 | 171 | 167 | 34.3 |
| C | 0 | 207 | 90666 | 1562.89 | 245 | 246 | 57.9 |
| C | 14 | 234 | 3931 | 63.69 | 245 | 246 | 57.9 |
| C | 13 | 61 | 1743 | 25.88 | 245 | 246 | 57.9 |
| D | 1 | 52 | 133108 | 2219.92 | 248 | 241 | 59.9 |
| D | 8 | 195 | 20829 | 343.98 | 248 | 241 | 59.9 |
| D | 2 | 234 | 9124 | 148.42 | 248 | 241 | 59.9 |
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 |  |