Observation information
- date-obs: 2015-11-24
- time-obs: 06-57-17.000001290
- date-end: 2015-11-24
- time-end: 09-07-42.000001239
- obs_id: P01_156T01_9000000118
- exposure: 3614.4660893
- 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_9000000118_00847cztM0_level2.evt
| modeM0/AS1P01_156T01_9000000118_00847cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,168,096,320 | 69,920,640 |
| Size | 1.1 GB
| 66.7 MB
|
| Events in quadrant A | 8,872,314 | 408,534 |
| Events in quadrant B | 9,408,172 | 408,382 |
| Events in quadrant C | 8,515,348 | 405,403 |
| Events in quadrant D | 8,104,165 | 394,127 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 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 | 31461 | 0 |
| B | 0 | 33061 | 0 |
| C | 0 | 30422 | 0 |
| D | 0 | 29126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7179 | 58 | 0.807912% |
| B | 7179 | 87 | 1.211868% |
| C | 7180 | 55 | 0.766017% |
| D | 7180 | 54 | 0.752089% |
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 | 7824 | 7179 | 243 | 243 | 3.11% | 3.38% |  |
| B | 7824 | 7179 | 335 | 335 | 4.28% | 4.67% |  |
| C | 7825 | 7180 | 184 | 184 | 2.35% | 2.56% |  |
| D | 7825 | 7180 | 147 | 147 | 1.88% | 2.05% |  |
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 | 15 | 171 | 46750 | 79.67 | 2296 | 2316 | 557.8 |
| A | 15 | 17 | 14529 | 21.9 | 2296 | 2316 | 557.8 |
| A | 3 | 111 | 7307 | 8.95 | 2296 | 2316 | 557.8 |
| B | 0 | 184 | 79251 | 138.02 | 2359 | 2376 | 557.0 |
| B | 0 | 220 | 61699 | 106.5 | 2359 | 2376 | 557.0 |
| B | 8 | 38 | 56253 | 96.73 | 2359 | 2376 | 557.0 |
| C | 15 | 241 | 41852 | 65.74 | 2153 | 2238 | 602.6 |
| C | 3 | 111 | 26709 | 40.61 | 2153 | 2238 | 602.6 |
| C | 3 | 79 | 14517 | 20.38 | 2153 | 2238 | 602.6 |
| D | 1 | 4 | 88994 | 131.14 | 2118 | 2193 | 661.9 |
| D | 13 | 200 | 39918 | 57.0 | 2118 | 2193 | 661.9 |
| D | 13 | 13 | 31332 | 44.02 | 2118 | 2193 | 661.9 |
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 |  |