Observation information
- date-obs: 2015-11-25
- time-obs: 09-05-49.000008939
- date-end: 2015-11-25
- time-end: 09-58-47.000000873
- obs_id: P01_156T01_9000000122
- exposure: 899.604662053
- 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_9000000122_00863cztM0_level2.evt
| modeM0/AS1P01_156T01_9000000122_00863cztM0_level2_quad_clean.evt
|
| Size (bytes) | 537,419,520 | 20,427,840 |
| Size | 512.5 MB
| 19.5 MB
|
| Events in quadrant A | 3,925,187 | 99,522 |
| Events in quadrant B | 4,180,558 | 100,098 |
| Events in quadrant C | 3,830,303 | 98,028 |
| Events in quadrant D | 4,127,363 | 93,910 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 64 | 0 |
| B | 0 | 64 | 0 |
| C | 0 | 64 | 0 |
| D | 0 | 64 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13904 | 0 |
| B | 0 | 14674 | 0 |
| C | 0 | 13637 | 0 |
| D | 0 | 14508 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3178 | 1 | 0.031466% |
| B | 3178 | 52 | 1.636249% |
| C | 3179 | 0 | 0.000000% |
| D | 3179 | 85 | 2.673797% |
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 | 3178 | 3178 | 65 | 65 | 2.05% | 2.05% |  |
| B | 3178 | 3178 | 150 | 150 | 4.72% | 4.72% |  |
| C | 3179 | 3179 | 62 | 62 | 1.95% | 1.95% |  |
| D | 3179 | 3179 | 231 | 231 | 7.27% | 7.27% |  |
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 | 0 | 253 | 4578 | 14.2 | 1021 | 1028 | 249.9 |
| A | 11 | 79 | 4228 | 12.8 | 1021 | 1028 | 249.9 |
| A | 3 | 111 | 3093 | 8.26 | 1021 | 1028 | 249.9 |
| B | 0 | 184 | 110166 | 442.04 | 1035 | 1041 | 246.9 |
| B | 0 | 220 | 39641 | 156.36 | 1035 | 1041 | 246.9 |
| B | 5 | 249 | 38982 | 153.69 | 1035 | 1041 | 246.9 |
| C | 8 | 208 | 17338 | 59.87 | 965 | 995 | 273.0 |
| C | 3 | 111 | 12697 | 42.87 | 965 | 995 | 273.0 |
| C | 10 | 19 | 10162 | 33.58 | 965 | 995 | 273.0 |
| D | 2 | 16 | 161952 | 527.25 | 990 | 1001 | 305.3 |
| D | 12 | 22 | 157474 | 512.58 | 990 | 1001 | 305.3 |
| D | 7 | 207 | 13796 | 41.91 | 990 | 1001 | 305.3 |
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 |  |