Observation information
- date-obs: 2017-11-20
- time-obs: 04:16:34.812600000
- date-end: 2017-11-20
- time-end: 06:33:23.806800000
- obs_id: C03_020T01_9000001706
- exposure: 3122.60185828
- sourceid: Crab
- observer: ramadevi
- ra_pnt: 335.4276
- dec_pnt: -7.9853
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C03_020T01_9000001706_11606cztM0_level2.evt
| modeM0/AS1C03_020T01_9000001706_11606cztM0_level2_quad_clean.evt
|
| Size (bytes) | 651,049,920 | 66,139,200 |
| Size | 620.9 MB
| 63.1 MB
|
| Events in quadrant A | 7,837,481 | 362,919 |
| Events in quadrant B | 4,323,830 | 405,065 |
| Events in quadrant C | 3,019,496 | 412,569 |
| Events in quadrant D | 4,118,105 | 389,805 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27579 | 3 |
| B | 0 | 16910 | 2 |
| C | 0 | 12976 | 2 |
| D | 0 | 16295 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 21 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6182 | 1717 | 27.774183% |
| B | 6182 | 267 | 4.318991% |
| C | 6182 | 46 | 0.744096% |
| D | 6182 | 123 | 1.989647% |
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 | 7388 | 6184 | 1119 | 1119 | 15.15% | 18.10% |  |
| B | 7388 | 6184 | 127 | 127 | 1.72% | 2.05% |  |
| C | 7388 | 6184 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7388 | 6184 | 61 | 61 | 0.83% | 0.99% |  |
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 | 8 | 5 | 4858981 | 33666.91 | 713 | 700 | 144.3 |
| A | 1 | 162 | 78270 | 537.54 | 713 | 700 | 144.3 |
| A | 1 | 178 | 43726 | 298.16 | 713 | 700 | 144.3 |
| B | 4 | 239 | 723688 | 4796.68 | 795 | 778 | 150.7 |
| B | 10 | 16 | 207140 | 1369.26 | 795 | 778 | 150.7 |
| B | 0 | 197 | 135725 | 895.4 | 795 | 778 | 150.7 |
| C | 13 | 61 | 5732 | 27.83 | 774 | 780 | 178.0 |
| C | 3 | 202 | 1862 | 6.08 | 774 | 780 | 178.0 |
| C | 12 | 4 | 1820 | 5.84 | 774 | 780 | 178.0 |
| D | 1 | 52 | 988126 | 5370.23 | 766 | 747 | 183.9 |
| D | 8 | 195 | 111445 | 602.07 | 766 | 747 | 183.9 |
| D | 13 | 104 | 49914 | 267.41 | 766 | 747 | 183.9 |
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 |  |