Observation information
- date-obs: 2020-08-29
- time-obs: 21:12:56.969400000
- date-end: 2020-08-29
- time-end: 23:27:13.963700000
- obs_id: A09_145T01_9000003848
- exposure: 4696.78483322
- 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_26610cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003848_26610cztM0_level2_quad_clean.evt
|
| Size (bytes) | 656,277,120 | 105,194,880 |
| Size | 625.9 MB
| 100.3 MB
|
| Events in quadrant A | 3,839,776 | 685,729 |
| Events in quadrant B | 4,533,131 | 687,450 |
| Events in quadrant C | 4,275,828 | 658,024 |
| Events in quadrant D | 6,714,055 | 627,564 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16057 | 0 |
| B | 0 | 18406 | 0 |
| C | 0 | 17286 | 0 |
| D | 0 | 25149 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7574 | 86 | 1.135463% |
| B | 7574 | 180 | 2.376551% |
| C | 7574 | 235 | 3.102720% |
| D | 7574 | 692 | 9.136520% |
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 | 7929 | 7575 | 6 | 6 | 0.08% | 0.08% |  |
| B | 7929 | 7575 | 10 | 10 | 0.13% | 0.13% |  |
| C | 7929 | 7575 | 31 | 31 | 0.39% | 0.41% |  |
| D | 7929 | 7575 | 521 | 521 | 6.57% | 6.88% |  |
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 | 95226 | 483.08 | 970 | 952 | 195.2 |
| A | 13 | 254 | 13257 | 63.05 | 970 | 952 | 195.2 |
| A | 3 | 137 | 8653 | 39.46 | 970 | 952 | 195.2 |
| B | 0 | 189 | 569552 | 3089.26 | 962 | 938 | 184.1 |
| B | 3 | 64 | 106443 | 573.21 | 962 | 938 | 184.1 |
| B | 5 | 172 | 36079 | 190.92 | 962 | 938 | 184.1 |
| C | 15 | 208 | 275260 | 1262.12 | 923 | 930 | 217.4 |
| C | 3 | 233 | 251336 | 1152.05 | 923 | 930 | 217.4 |
| C | 14 | 238 | 148036 | 676.8 | 923 | 930 | 217.4 |
| D | 1 | 52 | 2401537 | 10760.24 | 911 | 887 | 223.1 |
| D | 2 | 250 | 374457 | 1674.42 | 911 | 887 | 223.1 |
| D | 7 | 80 | 331776 | 1483.12 | 911 | 887 | 223.1 |
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 |  |