Observation information
- date-obs: 2015-11-23
- time-obs: 06-43-44.000001459
- date-end: 2015-11-23
- time-end: 08-45-00.000001421
- obs_id: P01_156T01_9000000114
- exposure: 2585.56694228
- sourceid: Crab
- observer: parag
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_156T01_9000000114_00832cztM0_level2.evt
| modeM0/AS1P01_156T01_9000000114_00832cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,131,272,640 | 53,775,360 |
| Size | 1.1 GB
| 51.3 MB
|
| Events in quadrant A | 8,211,132 | 293,944 |
| Events in quadrant B | 8,554,038 | 296,614 |
| Events in quadrant C | 7,947,075 | 290,232 |
| Events in quadrant D | 9,103,028 | 278,187 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29181 | 1 |
| B | 0 | 30197 | 1 |
| C | 0 | 28399 | 1 |
| D | 0 | 31946 | 11 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6727 | 49 | 0.728408% |
| B | 6727 | 56 | 0.832466% |
| C | 6727 | 42 | 0.624350% |
| D | 6726 | 607 | 9.024680% |
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 | 7277 | 6727 | 236 | 236 | 3.24% | 3.51% |  |
| B | 7277 | 6727 | 270 | 270 | 3.71% | 4.01% |  |
| C | 7277 | 6727 | 172 | 172 | 2.36% | 2.56% |  |
| D | 7276 | 6726 | 906 | 906 | 12.45% | 13.47% |  |
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 | 17 | 40987 | 75.24 | 2125 | 2144 | 516.2 |
| A | 3 | 80 | 12082 | 19.25 | 2125 | 2144 | 516.2 |
| A | 0 | 214 | 8745 | 12.79 | 2125 | 2144 | 516.2 |
| B | 2 | 2 | 87121 | 163.79 | 2190 | 2204 | 518.5 |
| B | 5 | 249 | 48926 | 90.12 | 2190 | 2204 | 518.5 |
| B | 8 | 219 | 31399 | 56.31 | 2190 | 2204 | 518.5 |
| C | 15 | 241 | 44364 | 75.17 | 2001 | 2073 | 562.6 |
| C | 3 | 111 | 30447 | 50.43 | 2001 | 2073 | 562.6 |
| C | 3 | 79 | 20515 | 32.78 | 2001 | 2073 | 562.6 |
| D | 7 | 70 | 1779668 | 3023.73 | 1877 | 1948 | 587.9 |
| D | 2 | 16 | 63406 | 104.53 | 1877 | 1948 | 587.9 |
| D | 13 | 200 | 53029 | 86.88 | 1877 | 1948 | 587.9 |
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 |  |