Observation information
- date-obs: 2019-05-28
- time-obs: 05:21:13.283600000
- date-end: 2019-05-28
- time-end: 07:28:56.282500000
- obs_id: C04_009T06_9000002960
- exposure: 7347.97598186
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_009T06_9000002960_19806cztM0_level2.evt
| modeM0/AS1C04_009T06_9000002960_19806cztM0_level2_quad_clean.evt
|
| Size (bytes) | 565,087,680 | 135,472,320 |
| Size | 538.9 MB
| 129.2 MB
|
| Events in quadrant A | 3,340,804 | 916,312 |
| Events in quadrant B | 3,546,407 | 930,310 |
| Events in quadrant C | 3,515,519 | 904,281 |
| Events in quadrant D | 6,200,945 | 829,211 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 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 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15332 | 2 |
| B | 0 | 15710 | 2 |
| C | 0 | 15652 | 2 |
| D | 0 | 23853 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7503 | 146 | 1.945888% |
| B | 7503 | 156 | 2.079168% |
| C | 7503 | 153 | 2.039184% |
| D | 7503 | 1048 | 13.967746% |
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 | 7663 | 7504 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7663 | 7504 | 16 | 16 | 0.21% | 0.21% |  |
| C | 7663 | 7504 | 13 | 13 | 0.17% | 0.17% |  |
| D | 7663 | 7504 | 882 | 882 | 11.51% | 11.75% |  |
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 | 0 | 226 | 7588 | 38.42 | 867 | 845 | 175.5 |
| A | 3 | 137 | 7088 | 35.57 | 867 | 845 | 175.5 |
| A | 12 | 194 | 6406 | 31.69 | 867 | 845 | 175.5 |
| B | 4 | 216 | 93549 | 555.43 | 866 | 841 | 166.9 |
| B | 7 | 220 | 34882 | 203.94 | 866 | 841 | 166.9 |
| B | 12 | 111 | 20312 | 116.65 | 866 | 841 | 166.9 |
| C | 3 | 233 | 147229 | 755.39 | 830 | 834 | 193.8 |
| C | 14 | 238 | 130833 | 670.78 | 830 | 834 | 193.8 |
| C | 13 | 61 | 5810 | 25.68 | 830 | 834 | 193.8 |
| D | 7 | 38 | 1743596 | 9062.53 | 795 | 770 | 192.3 |
| D | 12 | 218 | 482577 | 2505.35 | 795 | 770 | 192.3 |
| D | 7 | 238 | 351454 | 1823.52 | 795 | 770 | 192.3 |
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 |  |