Observation information
- date-obs: 2018-03-13
- time-obs: 16:46:24.810100000
- date-end: 2018-03-13
- time-end: 18:48:25.808700000
- obs_id: T02_013T01_9000001976
- exposure: 3322.46036597
- 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_13286cztM0_level2.evt
| modeM0/AS1T02_013T01_9000001976_13286cztM0_level2_quad_clean.evt
|
| Size (bytes) | 653,241,600 | 83,594,880 |
| Size | 623.0 MB
| 79.7 MB
|
| Events in quadrant A | 3,423,043 | 621,800 |
| Events in quadrant B | 7,659,795 | 314,073 |
| Events in quadrant C | 3,000,818 | 617,422 |
| Events in quadrant D | 5,292,880 | 557,359 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14074 | 2 |
| B | 0 | 26684 | 1 |
| C | 0 | 12626 | 1 |
| D | 0 | 19777 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6001 | 87 | 1.449758% |
| B | 6001 | 2690 | 44.825862% |
| C | 6001 | 39 | 0.649892% |
| D | 6001 | 288 | 4.799200% |
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 | 7322 | 6003 | 16 | 16 | 0.22% | 0.27% |  |
| B | 7321 | 6000 | 1477 | 1477 | 20.17% | 24.62% |  |
| C | 7322 | 6003 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7322 | 6003 | 296 | 296 | 4.04% | 4.93% |  |
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 | 69 | 191470 | 1215.96 | 780 | 767 | 156.8 |
| A | 8 | 15 | 148962 | 944.92 | 780 | 767 | 156.8 |
| A | 1 | 162 | 28623 | 177.62 | 780 | 767 | 156.8 |
| B | 4 | 239 | 5481055 | 55177.44 | 527 | 515 | 99.3 |
| B | 3 | 64 | 23741 | 233.84 | 527 | 515 | 99.3 |
| B | 4 | 216 | 19423 | 190.36 | 527 | 515 | 99.3 |
| C | 15 | 208 | 27330 | 151.39 | 761 | 769 | 175.4 |
| C | 6 | 96 | 6335 | 31.73 | 761 | 769 | 175.4 |
| C | 13 | 61 | 5614 | 27.62 | 761 | 769 | 175.4 |
| D | 13 | 104 | 1717028 | 9606.32 | 743 | 724 | 178.7 |
| D | 13 | 249 | 302444 | 1688.76 | 743 | 724 | 178.7 |
| D | 1 | 52 | 180347 | 1005.37 | 743 | 724 | 178.7 |
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 |  |