Observation information
- date-obs: 2015-11-24
- time-obs: 10-08-28.000001227
- date-end: 2015-11-24
- time-end: 12-35-31.000001197
- obs_id: P01_156T01_9000000118
- exposure: 3453.21259973
- 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_00849cztM0_level2.evt
| modeM0/AS1P01_156T01_9000000118_00849cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,163,246,400 | 66,700,800 |
| Size | 1.1 GB
| 63.6 MB
|
| Events in quadrant A | 8,685,309 | 390,081 |
| Events in quadrant B | 9,136,931 | 387,233 |
| Events in quadrant C | 8,544,562 | 384,127 |
| Events in quadrant D | 8,402,803 | 374,388 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30717 | 0 |
| B | 0 | 32057 | 0 |
| C | 0 | 30335 | 0 |
| D | 0 | 29898 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6938 | 57 | 0.821562% |
| B | 6937 | 59 | 0.850512% |
| C | 6937 | 69 | 0.994666% |
| D | 6938 | 121 | 1.744018% |
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 | 8823 | 6938 | 303 | 303 | 3.43% | 4.37% |  |
| B | 8822 | 6937 | 375 | 375 | 4.25% | 5.41% |  |
| C | 8822 | 6937 | 249 | 249 | 2.82% | 3.59% |  |
| D | 8823 | 6938 | 403 | 403 | 4.57% | 5.81% |  |
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 | 12499 | 18.71 | 2259 | 2281 | 546.2 |
| A | 15 | 17 | 8783 | 11.9 | 2259 | 2281 | 546.2 |
| A | 11 | 79 | 8277 | 10.98 | 2259 | 2281 | 546.2 |
| B | 2 | 2 | 55103 | 95.81 | 2345 | 2362 | 550.5 |
| B | 0 | 23 | 24224 | 39.72 | 2345 | 2362 | 550.5 |
| B | 5 | 249 | 23665 | 38.7 | 2345 | 2362 | 550.5 |
| C | 15 | 241 | 61566 | 99.24 | 2146 | 2226 | 597.9 |
| C | 10 | 19 | 29171 | 45.06 | 2146 | 2226 | 597.9 |
| C | 3 | 111 | 28007 | 43.12 | 2146 | 2226 | 597.9 |
| D | 10 | 85 | 342135 | 523.7 | 2101 | 2185 | 649.1 |
| D | 1 | 4 | 71626 | 106.97 | 2101 | 2185 | 649.1 |
| D | 13 | 169 | 63940 | 95.13 | 2101 | 2185 | 649.1 |
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 |  |