Observation information
- date-obs: 2018-02-03
- time-obs: 16:09:14.957500000
- date-end: 2018-02-03
- time-end: 16:47:38.957000000
- obs_id: A04_174T01_9000001876
- exposure: 2164.09860687
- 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_12723cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12723cztM0_level2_quad_clean.evt
|
| Size (bytes) | 267,238,080 | 48,600,000 |
| Size | 254.9 MB
| 46.3 MB
|
| Events in quadrant A | 3,040,198 | 308,251 |
| Events in quadrant B | 2,092,153 | 316,885 |
| Events in quadrant C | 1,095,126 | 349,120 |
| Events in quadrant D | 1,707,816 | 330,674 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10641 | 0 |
| B | 0 | 7712 | 0 |
| C | 0 | 4673 | 0 |
| D | 0 | 6555 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 46 | 0 |
| B | 0 | 46 | 0 |
| C | 0 | 46 | 0 |
| D | 0 | 46 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2305 | 608 | 26.377440% |
| B | 2305 | 387 | 16.789588% |
| C | 2305 | 3 | 0.130152% |
| D | 2305 | 148 | 6.420824% |
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 | 2306 | 2306 | 610 | 610 | 26.45% | 26.45% |  |
| B | 2306 | 2306 | 270 | 270 | 11.71% | 11.71% |  |
| C | 2306 | 2306 | 1 | 1 | 0.04% | 0.04% |  |
| D | 2306 | 2306 | 179 | 179 | 7.76% | 7.76% |  |
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 | 2012101 | 37719.02 | 256 | 252 | 53.3 |
| A | 12 | 189 | 17178 | 317.34 | 256 | 252 | 53.3 |
| A | 15 | 174 | 11595 | 212.66 | 256 | 252 | 53.3 |
| B | 4 | 239 | 1027789 | 20447.0 | 255 | 251 | 50.3 |
| B | 3 | 209 | 22450 | 441.74 | 255 | 251 | 50.3 |
| B | 0 | 219 | 13376 | 261.17 | 255 | 251 | 50.3 |
| C | 9 | 221 | 13220 | 198.27 | 277 | 280 | 65.3 |
| C | 13 | 61 | 2072 | 27.46 | 277 | 280 | 65.3 |
| C | 8 | 222 | 1348 | 16.36 | 277 | 280 | 65.3 |
| D | 13 | 104 | 494296 | 7503.81 | 274 | 269 | 65.8 |
| D | 1 | 52 | 148746 | 2255.23 | 274 | 269 | 65.8 |
| D | 12 | 233 | 11053 | 163.8 | 274 | 269 | 65.8 |
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 |  |