Observation information
- date-obs: 2018-10-24
- time-obs: 00:11:13.791400000
- date-end: 2018-10-24
- time-end: 02:47:07.787300000
- obs_id: C04_009T01_9000002448
- exposure: 8378.43523557
- 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_009T01_9000002448_16606cztM0_level2.evt
| modeM0/AS1C04_009T01_9000002448_16606cztM0_level2_quad_clean.evt
|
| Size (bytes) | 568,152,000 | 154,693,440 |
| Size | 541.8 MB
| 147.5 MB
|
| Events in quadrant A | 3,778,531 | 1,026,103 |
| Events in quadrant B | 4,599,855 | 1,049,342 |
| Events in quadrant C | 4,204,802 | 1,023,799 |
| Events in quadrant D | 4,051,474 | 1,001,034 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17281 | 3 |
| B | 0 | 19510 | 2 |
| C | 0 | 17903 | 2 |
| D | 0 | 18182 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 172 | 0 |
| B | 0 | 172 | 0 |
| C | 0 | 172 | 0 |
| D | 0 | 172 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8429 | 23 | 0.272867% |
| B | 8429 | 172 | 2.040574% |
| C | 8429 | 88 | 1.044015% |
| D | 8429 | 40 | 0.474552% |
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 | 9355 | 8432 | 1 | 1 | 0.01% | 0.01% |  |
| B | 9355 | 8432 | 8 | 8 | 0.09% | 0.09% |  |
| C | 9355 | 8432 | 0 | 0 | 0.00% | 0.00% |  |
| D | 9355 | 8432 | 18 | 18 | 0.19% | 0.21% |  |
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 | 9 | 143 | 20255 | 98.2 | 970 | 948 | 196.6 |
| A | 15 | 69 | 11287 | 52.59 | 970 | 948 | 196.6 |
| A | 15 | 174 | 8637 | 39.11 | 970 | 948 | 196.6 |
| B | 0 | 189 | 243513 | 1320.5 | 978 | 953 | 183.7 |
| B | 15 | 35 | 216789 | 1175.01 | 978 | 953 | 183.7 |
| B | 0 | 85 | 68966 | 370.26 | 978 | 953 | 183.7 |
| C | 3 | 233 | 205771 | 926.15 | 948 | 951 | 221.2 |
| C | 14 | 238 | 147200 | 661.3 | 948 | 951 | 221.2 |
| C | 7 | 247 | 138178 | 620.51 | 948 | 951 | 221.2 |
| D | 1 | 52 | 232126 | 1003.63 | 949 | 918 | 230.4 |
| D | 10 | 70 | 115230 | 496.21 | 949 | 918 | 230.4 |
| D | 7 | 38 | 76344 | 327.41 | 949 | 918 | 230.4 |
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 |  |