Observation information
- date-obs: 2016-11-15
- time-obs: 18:42:20.370400000
- date-end: 2016-11-15
- time-end: 20:10:04.380000000
- obs_id: C02_018T01_9000000798
- exposure: 2248.95552927
- 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_06138cztM0_level2.evt
| modeM0/AS1C02_018T01_9000000798_06138cztM0_level2_quad_clean.evt
|
| Size (bytes) | 303,459,840 | 49,023,360 |
| Size | 289.4 MB
| 46.8 MB
|
| Events in quadrant A | 2,518,423 | 289,887 |
| Events in quadrant B | 2,402,122 | 304,590 |
| Events in quadrant C | 2,010,249 | 310,075 |
| Events in quadrant D | 1,982,507 | 293,345 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 84 | 0 |
| B | 0 | 84 | 0 |
| C | 0 | 84 | 0 |
| D | 0 | 84 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10214 | 2 |
| B | 0 | 9822 | 1 |
| C | 0 | 8751 | 1 |
| D | 0 | 8742 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4054 | 162 | 3.996053% |
| B | 4054 | 143 | 3.527380% |
| C | 4054 | 31 | 0.764677% |
| D | 4054 | 51 | 1.258017% |
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 | 5264 | 4055 | 116 | 116 | 2.20% | 2.86% |  |
| B | 5264 | 4055 | 46 | 46 | 0.87% | 1.13% |  |
| C | 5264 | 4055 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5264 | 4055 | 10 | 10 | 0.19% | 0.25% |  |
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 | 570168 | 5536.33 | 498 | 487 | 102.9 |
| A | 8 | 15 | 26646 | 254.22 | 498 | 487 | 102.9 |
| A | 4 | 2 | 7552 | 68.66 | 498 | 487 | 102.9 |
| B | 3 | 64 | 297846 | 3007.65 | 505 | 494 | 98.9 |
| B | 0 | 214 | 30860 | 307.15 | 505 | 494 | 98.9 |
| B | 4 | 81 | 22066 | 218.2 | 505 | 494 | 98.9 |
| C | 1 | 16 | 70880 | 608.08 | 490 | 493 | 115.8 |
| C | 9 | 16 | 16701 | 140.02 | 490 | 493 | 115.8 |
| C | 9 | 54 | 6889 | 55.26 | 490 | 493 | 115.8 |
| D | 5 | 97 | 47241 | 389.19 | 486 | 470 | 120.2 |
| D | 2 | 33 | 33708 | 276.58 | 486 | 470 | 120.2 |
| D | 8 | 195 | 29092 | 238.17 | 486 | 470 | 120.2 |
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 |  |