Observation information
- date-obs: 2020-09-03
- time-obs: 21:24:36.735000000
- date-end: 2020-09-04
- time-end: 00:14:23.730800000
- obs_id: A09_145T01_9000003848
- exposure: 6421.37517835
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_145T01_9000003848_26685cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003848_26685cztM0_level2_quad_clean.evt
|
| Size (bytes) | 768,772,800 | 136,244,160 |
| Size | 733.2 MB
| 129.9 MB
|
| Events in quadrant A | 4,069,488 | 920,923 |
| Events in quadrant B | 8,158,188 | 864,213 |
| Events in quadrant C | 4,287,190 | 890,141 |
| Events in quadrant D | 6,183,240 | 851,589 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17621 | 0 |
| B | 0 | 29870 | 0 |
| C | 0 | 18000 | 0 |
| D | 0 | 24226 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 9 | 1 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8605 | 38 | 0.441604% |
| B | 8570 | 1176 | 13.722287% |
| C | 8585 | 98 | 1.141526% |
| D | 8541 | 586 | 6.861023% |
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 | 10004 | 9012 | 2 | 2 | 0.02% | 0.02% |  |
| B | 10004 | 8990 | 928 | 928 | 9.28% | 10.32% |  |
| C | 10004 | 8970 | 5 | 5 | 0.05% | 0.06% |  |
| D | 10004 | 8965 | 419 | 419 | 4.19% | 4.67% |  |
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 | 13 | 27424 | 124.0 | 1045 | 1028 | 212.9 |
| A | 13 | 254 | 15186 | 66.51 | 1045 | 1028 | 212.9 |
| A | 3 | 137 | 9424 | 39.44 | 1045 | 1028 | 212.9 |
| B | 0 | 189 | 4163143 | 21725.05 | 1002 | 981 | 191.6 |
| B | 5 | 172 | 28730 | 144.84 | 1002 | 981 | 191.6 |
| B | 12 | 111 | 22509 | 112.37 | 1002 | 981 | 191.6 |
| C | 14 | 238 | 161481 | 676.93 | 1002 | 1012 | 237.1 |
| C | 15 | 208 | 82054 | 341.87 | 1002 | 1012 | 237.1 |
| C | 3 | 233 | 65810 | 273.35 | 1002 | 1012 | 237.1 |
| D | 7 | 80 | 1043572 | 4288.41 | 981 | 953 | 243.1 |
| D | 1 | 52 | 732121 | 3007.38 | 981 | 953 | 243.1 |
| D | 2 | 250 | 461935 | 1896.07 | 981 | 953 | 243.1 |
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 |  |