Observation information
- date-obs: 2016-11-15
- time-obs: 19:27:15.379300000
- date-end: 2016-11-15
- time-end: 21:54:50.379500000
- obs_id: C02_018T01_9000000798
- exposure: 3954.50580703
- sourceid: Crab
- observer: ravibt
- ra_pnt: 310.9978
- dec_pnt: -16.051
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C02_018T01_9000000798_06139cztM0_level2.evt
| modeM0/AS1C02_018T01_9000000798_06139cztM0_level2_quad_clean.evt
|
| Size (bytes) | 483,684,480 | 81,855,360 |
| Size | 461.3 MB
| 78.1 MB
|
| Events in quadrant A | 3,844,852 | 496,065 |
| Events in quadrant B | 3,976,492 | 510,231 |
| Events in quadrant C | 3,071,081 | 520,474 |
| Events in quadrant D | 3,308,564 | 492,411 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 2 |
| D | 0 | 136 | 6 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16052 | 219 |
| B | 0 | 16447 | 221 |
| C | 0 | 13902 | 158 |
| D | 0 | 14774 | 130 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6590 | 195 | 2.959029% |
| B | 6582 | 244 | 3.707080% |
| C | 6587 | 41 | 0.622438% |
| D | 6602 | 129 | 1.953953% |
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 | 8855 | 6652 | 138 | 138 | 1.56% | 2.07% |  |
| B | 8855 | 6652 | 113 | 113 | 1.28% | 1.70% |  |
| C | 8855 | 6654 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8855 | 6655 | 78 | 78 | 0.88% | 1.17% |  |
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 | 13 | 170 | 728973 | 4594.23 | 770 | 754 | 158.5 |
| A | 8 | 15 | 68160 | 425.26 | 770 | 754 | 158.5 |
| A | 0 | 50 | 49236 | 305.87 | 770 | 754 | 158.5 |
| B | 3 | 64 | 562701 | 3759.95 | 777 | 759 | 149.5 |
| B | 0 | 219 | 169624 | 1129.87 | 777 | 759 | 149.5 |
| B | 0 | 214 | 54958 | 362.64 | 777 | 759 | 149.5 |
| C | 1 | 16 | 89742 | 501.91 | 758 | 763 | 177.3 |
| C | 9 | 16 | 22441 | 122.28 | 758 | 763 | 177.3 |
| C | 13 | 61 | 5935 | 29.17 | 758 | 763 | 177.3 |
| D | 1 | 239 | 205012 | 1097.02 | 751 | 730 | 186.2 |
| D | 2 | 33 | 93187 | 496.51 | 751 | 730 | 186.2 |
| D | 5 | 97 | 62689 | 332.73 | 751 | 730 | 186.2 |
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 |  |