Observation information
- date-obs: 2018-02-03
- time-obs: 02:09:57.970400000
- date-end: 2018-02-03
- time-end: 04:11:37.969400000
- obs_id: A04_174T01_9000001876
- exposure: 3477.64606303
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001876_12714cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12714cztM0_level2_quad_clean.evt
|
| Size (bytes) | 497,030,400 | 79,776,000 |
| Size | 474.0 MB
| 76.1 MB
|
| Events in quadrant A | 3,305,233 | 496,493 |
| Events in quadrant B | 4,447,644 | 470,419 |
| Events in quadrant C | 3,135,133 | 497,657 |
| Events in quadrant D | 3,699,188 | 473,459 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14542 | 2 |
| B | 0 | 17757 | 1 |
| C | 0 | 13979 | 1 |
| D | 0 | 15788 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6855 | 58 | 0.846098% |
| B | 6855 | 480 | 7.002188% |
| C | 6855 | 22 | 0.320934% |
| D | 6855 | 66 | 0.962801% |
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 | 7301 | 6856 | 12 | 12 | 0.16% | 0.18% |  |
| B | 7301 | 6856 | 336 | 336 | 4.60% | 4.90% |  |
| C | 7301 | 6856 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7301 | 6856 | 53 | 53 | 0.73% | 0.77% |  |
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 | 239 | 110395 | 659.52 | 811 | 794 | 166.2 |
| A | 12 | 189 | 34422 | 202.35 | 811 | 794 | 166.2 |
| A | 15 | 222 | 29754 | 174.26 | 811 | 794 | 166.2 |
| B | 4 | 239 | 1277853 | 8440.16 | 791 | 773 | 151.3 |
| B | 0 | 214 | 32676 | 210.84 | 791 | 773 | 151.3 |
| B | 0 | 197 | 17442 | 110.16 | 791 | 773 | 151.3 |
| C | 15 | 208 | 15495 | 79.62 | 792 | 800 | 184.6 |
| C | 14 | 234 | 12265 | 62.12 | 792 | 800 | 184.6 |
| C | 8 | 128 | 10216 | 51.02 | 792 | 800 | 184.6 |
| D | 1 | 52 | 546246 | 2826.82 | 782 | 764 | 193.0 |
| D | 10 | 199 | 107345 | 552.33 | 782 | 764 | 193.0 |
| D | 13 | 104 | 30184 | 152.46 | 782 | 764 | 193.0 |
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 |  |