Observation information
- date-obs: 2018-10-14
- time-obs: 21:14:44.168200000
- date-end: 2018-10-14
- time-end: 23:05:49.165400000
- obs_id: C04_008T01_9000002434
- exposure: 4113.97442628
- sourceid: Crab Offset
- observer: arrao
- ra_pnt: 83.428
- dec_pnt: 22.015
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_008T01_9000002434_16471cztM0_level2.evt
| modeM0/AS1C04_008T01_9000002434_16471cztM0_level2_quad_clean.evt
|
| Size (bytes) | 424,837,440 | 97,176,960 |
| Size | 405.2 MB
| 92.7 MB
|
| Events in quadrant A | 3,297,580 | 642,035 |
| Events in quadrant B | 3,427,884 | 673,845 |
| Events in quadrant C | 3,103,757 | 637,446 |
| Events in quadrant D | 2,671,625 | 613,189 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13218 | 1 |
| B | 0 | 13731 | 1 |
| C | 0 | 12774 | 1 |
| D | 0 | 11457 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 110 | 0 |
| B | 0 | 110 | 0 |
| C | 0 | 110 | 0 |
| D | 0 | 110 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5376 | 172 | 3.199405% |
| B | 5376 | 131 | 2.436756% |
| C | 5376 | 110 | 2.046131% |
| D | 5376 | 24 | 0.446429% |
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 | 6667 | 5377 | 99 | 99 | 1.48% | 1.84% |  |
| B | 6667 | 5377 | 33 | 33 | 0.49% | 0.61% |  |
| C | 6667 | 5377 | 6 | 6 | 0.09% | 0.11% |  |
| D | 6667 | 5377 | 6 | 6 | 0.09% | 0.11% |  |
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 | 15 | 174 | 628527 | 4455.72 | 695 | 686 | 140.9 |
| A | 0 | 226 | 6094 | 38.38 | 695 | 686 | 140.9 |
| A | 12 | 194 | 5019 | 30.75 | 695 | 686 | 140.9 |
| B | 4 | 173 | 317187 | 2344.64 | 709 | 696 | 135.0 |
| B | 3 | 209 | 95678 | 703.65 | 709 | 696 | 135.0 |
| B | 15 | 35 | 87208 | 640.9 | 709 | 696 | 135.0 |
| C | 3 | 233 | 308105 | 1944.66 | 678 | 686 | 158.1 |
| C | 14 | 238 | 105660 | 664.04 | 678 | 686 | 158.1 |
| C | 7 | 247 | 43280 | 269.44 | 678 | 686 | 158.1 |
| D | 2 | 120 | 30119 | 178.46 | 678 | 660 | 165.1 |
| D | 2 | 234 | 22655 | 133.24 | 678 | 660 | 165.1 |
| D | 13 | 248 | 21870 | 128.48 | 678 | 660 | 165.1 |
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 |  |