Observation information
- date-obs: 2019-08-08
- time-obs: 11:54:47.984500000
- date-end: 2019-08-08
- time-end: 12:58:41.985400000
- obs_id: A05_160T01_9000003078
- exposure: 1346.19649394
- sourceid: CTA 102
- observer: raj
- ra_pnt: 338.1392
- dec_pnt: 11.72028
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_160T01_9000003078_20876cztM0_level2.evt
| modeM0/AS1A05_160T01_9000003078_20876cztM0_level2_quad_clean.evt
|
| Size (bytes) | 219,968,640 | 30,185,280 |
| Size | 209.8 MB
| 28.8 MB
|
| Events in quadrant A | 1,508,594 | 178,086 |
| Events in quadrant B | 1,608,831 | 181,238 |
| Events in quadrant C | 1,504,065 | 164,623 |
| Events in quadrant D | 1,824,075 | 165,201 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6433 | 1 |
| B | 0 | 6623 | 1 |
| C | 0 | 6413 | 1 |
| D | 0 | 7377 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 64 | 0 |
| B | 0 | 64 | 0 |
| C | 0 | 64 | 0 |
| D | 0 | 64 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3150 | 9 | 0.285714% |
| B | 3150 | 19 | 0.603175% |
| C | 3150 | 34 | 1.079365% |
| D | 3150 | 58 | 1.841270% |
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 | 3150 | 3150 | 0 | 0 | 0.00% | 0.00% |  |
| B | 3150 | 3150 | 1 | 1 | 0.03% | 0.03% |  |
| C | 3150 | 3150 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3150 | 3150 | 50 | 50 | 1.59% | 1.59% |  |
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 | 174 | 3334 | 36.74 | 391 | 382 | 80.4 |
| A | 3 | 137 | 3290 | 36.19 | 391 | 382 | 80.4 |
| A | 0 | 226 | 3280 | 36.07 | 391 | 382 | 80.4 |
| B | 0 | 189 | 58857 | 773.03 | 388 | 378 | 75.6 |
| B | 3 | 64 | 14787 | 190.47 | 388 | 378 | 75.6 |
| B | 12 | 111 | 9134 | 115.74 | 388 | 378 | 75.6 |
| C | 14 | 238 | 59064 | 671.97 | 368 | 370 | 87.3 |
| C | 9 | 54 | 10014 | 110.41 | 368 | 370 | 87.3 |
| C | 13 | 61 | 2358 | 22.76 | 368 | 370 | 87.3 |
| D | 1 | 239 | 183766 | 2024.61 | 373 | 363 | 90.6 |
| D | 1 | 20 | 143989 | 1585.51 | 373 | 363 | 90.6 |
| D | 1 | 52 | 40056 | 438.18 | 373 | 363 | 90.6 |
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 |  |