Observation information
- date-obs: 2020-09-29
- time-obs: 01:33:49.995700000
- date-end: 2020-09-29
- time-end: 04:02:47.991300000
- obs_id: A09_120T02_9000003904
- exposure: 5124.59948841
- sourceid: Crab
- observer: avishek
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_120T02_9000003904_27057cztM0_level2.evt
| modeM0/AS1A09_120T02_9000003904_27057cztM0_level2_quad_clean.evt
|
| Size (bytes) | 905,339,520 | 113,653,440 |
| Size | 863.4 MB
| 108.4 MB
|
| Events in quadrant A | 8,338,622 | 692,728 |
| Events in quadrant B | 9,694,475 | 727,173 |
| Events in quadrant C | 3,777,189 | 759,894 |
| Events in quadrant D | 5,095,952 | 733,502 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29817 | 0 |
| B | 0 | 33890 | 0 |
| C | 0 | 15926 | 0 |
| D | 0 | 20521 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7593 | 1454 | 19.149216% |
| B | 7594 | 2623 | 34.540427% |
| C | 7594 | 119 | 1.567027% |
| D | 7594 | 341 | 4.490387% |
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 | 8938 | 7593 | 1272 | 1272 | 14.23% | 16.75% |  |
| B | 8939 | 7594 | 2177 | 2177 | 24.35% | 28.67% |  |
| C | 8939 | 7594 | 1 | 1 | 0.01% | 0.01% |  |
| D | 8939 | 7595 | 223 | 223 | 2.49% | 2.94% |  |
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 | 235 | 4898794 | 27464.04 | 890 | 874 | 178.3 |
| A | 13 | 254 | 11851 | 61.55 | 890 | 874 | 178.3 |
| A | 6 | 16 | 8256 | 41.39 | 890 | 874 | 178.3 |
| B | 0 | 189 | 6146407 | 38215.23 | 837 | 817 | 160.8 |
| B | 10 | 246 | 180114 | 1114.93 | 837 | 817 | 160.8 |
| B | 10 | 245 | 61516 | 377.45 | 837 | 817 | 160.8 |
| C | 14 | 238 | 148901 | 671.31 | 924 | 932 | 220.4 |
| C | 15 | 208 | 21125 | 91.61 | 924 | 932 | 220.4 |
| C | 3 | 9 | 13603 | 57.49 | 924 | 932 | 220.4 |
| D | 1 | 52 | 1443191 | 6543.93 | 912 | 890 | 220.4 |
| D | 2 | 250 | 149417 | 673.89 | 912 | 890 | 220.4 |
| D | 2 | 234 | 30968 | 136.47 | 912 | 890 | 220.4 |
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 |  |