Observation information
- date-obs: 2018-03-13
- time-obs: 21:39:55.807600000
- date-end: 2018-03-14
- time-end: 00:01:20.804800000
- obs_id: T02_013T01_9000001976
- exposure: 3322.81230312
- sourceid: Crab
- observer: dipankar
- ra_pnt: 83.63308
- dec_pnt: 22.01449
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_013T01_9000001976_13289cztM0_level2.evt
| modeM0/AS1T02_013T01_9000001976_13289cztM0_level2_quad_clean.evt
|
| Size (bytes) | 666,743,040 | 79,649,280 |
| Size | 635.9 MB
| 76.0 MB
|
| Events in quadrant A | 3,176,179 | 567,553 |
| Events in quadrant B | 6,354,724 | 324,016 |
| Events in quadrant C | 3,325,696 | 567,172 |
| Events in quadrant D | 6,902,292 | 505,233 |
Level1 data integrity
| 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 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13543 | 3 |
| B | 0 | 22988 | 2 |
| C | 0 | 13928 | 2 |
| D | 0 | 24858 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6404 | 31 | 0.484072% |
| B | 6404 | 2090 | 32.635853% |
| C | 6404 | 42 | 0.655840% |
| D | 6404 | 600 | 9.369144% |
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 | 7505 | 6406 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7505 | 6405 | 1096 | 1096 | 14.60% | 17.11% |  |
| C | 7505 | 6406 | 17 | 17 | 0.23% | 0.27% |  |
| D | 7505 | 6406 | 516 | 516 | 6.88% | 8.05% |  |
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 | 15 | 60335 | 366.05 | 799 | 787 | 162.7 |
| A | 9 | 143 | 17374 | 101.96 | 799 | 787 | 162.7 |
| A | 1 | 162 | 14391 | 83.63 | 799 | 787 | 162.7 |
| B | 4 | 239 | 3944998 | 35370.81 | 581 | 570 | 111.5 |
| B | 10 | 245 | 64159 | 570.22 | 581 | 570 | 111.5 |
| B | 0 | 189 | 14049 | 120.87 | 581 | 570 | 111.5 |
| C | 15 | 208 | 276673 | 1524.48 | 781 | 789 | 181.0 |
| C | 13 | 61 | 5652 | 26.87 | 781 | 789 | 181.0 |
| C | 6 | 96 | 3427 | 14.58 | 781 | 789 | 181.0 |
| D | 1 | 52 | 2473699 | 13624.06 | 750 | 730 | 181.5 |
| D | 5 | 222 | 715278 | 3936.58 | 750 | 730 | 181.5 |
| D | 8 | 195 | 232957 | 1279.38 | 750 | 730 | 181.5 |
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 |  |