Observation information
- date-obs: 2018-03-01
- time-obs: 18:43:36.649200000
- date-end: 2018-03-01
- time-end: 21:07:58.652600000
- obs_id: C03_023T01_9000001930
- exposure: 4586.15637697
- sourceid: Crab_SSM1
- observer: ramadevi
- ra_pnt: 216.8708
- dec_pnt: -12.5862
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C03_023T01_9000001930_13109cztM0_level2.evt
| modeM0/AS1C03_023T01_9000001930_13109cztM0_level2_quad_clean.evt
|
| Size (bytes) | 539,740,800 | 90,100,800 |
| Size | 514.7 MB
| 85.9 MB
|
| Events in quadrant A | 3,260,494 | 572,044 |
| Events in quadrant B | 5,783,068 | 563,528 |
| Events in quadrant C | 3,101,173 | 579,624 |
| Events in quadrant D | 3,750,666 | 550,173 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14103 | 3 |
| B | 0 | 21730 | 2 |
| C | 0 | 13592 | 2 |
| D | 0 | 15785 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6642 | 56 | 0.843120% |
| B | 6642 | 1009 | 15.191207% |
| C | 6642 | 31 | 0.466727% |
| D | 6642 | 116 | 1.746462% |
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 | 8663 | 6645 | 2 | 2 | 0.02% | 0.03% |  |
| B | 8663 | 6644 | 539 | 539 | 6.22% | 8.11% |  |
| C | 8663 | 6645 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8663 | 6645 | 60 | 60 | 0.69% | 0.90% |  |
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 | 12 | 189 | 72229 | 434.29 | 808 | 790 | 164.5 |
| A | 8 | 15 | 29307 | 173.36 | 808 | 790 | 164.5 |
| A | 1 | 162 | 27587 | 162.9 | 808 | 790 | 164.5 |
| B | 0 | 85 | 2619944 | 17901.34 | 760 | 741 | 146.3 |
| B | 3 | 64 | 139747 | 950.06 | 760 | 741 | 146.3 |
| B | 0 | 230 | 18762 | 123.17 | 760 | 741 | 146.3 |
| C | 0 | 207 | 13998 | 71.4 | 792 | 798 | 184.9 |
| C | 13 | 61 | 5593 | 25.94 | 792 | 798 | 184.9 |
| C | 3 | 202 | 1900 | 5.96 | 792 | 798 | 184.9 |
| D | 13 | 122 | 591526 | 3115.15 | 780 | 756 | 189.6 |
| D | 1 | 52 | 101587 | 531.68 | 780 | 756 | 189.6 |
| D | 10 | 157 | 54559 | 283.7 | 780 | 756 | 189.6 |
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 |  |