Observation information
- date-obs: 2020-09-27
- time-obs: 08:21:24.725600000
- date-end: 2020-09-27
- time-end: 17:07:19.054300000
- obs_id: A09_120T02_9000003904
- exposure: 14654.8172565
- sourceid: Crab
- observer: avishek
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_120T02_9000003904_27036cztM0_level2.evt
| modeM0/AS1A09_120T02_9000003904_27036cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,528,251,200 | 342,429,120 |
| Size | 2.4 GB
| 326.6 MB
|
| Events in quadrant A | 27,814,836 | 1,879,886 |
| Events in quadrant B | 14,115,687 | 2,292,420 |
| Events in quadrant C | 13,805,007 | 2,190,153 |
| Events in quadrant D | 18,979,870 | 2,114,889 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 40 | 0 |
| B | 0 | 40 | 0 |
| C | 0 | 40 | 0 |
| D | 0 | 40 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 100581 | 0 |
| B | 0 | 58342 | 0 |
| C | 0 | 57502 | 0 |
| D | 0 | 74424 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 27515 | 5804 | 21.093949% |
| B | 27516 | 338 | 1.228376% |
| C | 27516 | 439 | 1.595435% |
| D | 27516 | 1126 | 4.092165% |
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 | 31555 | 27515 | 4540 | 4540 | 14.39% | 16.50% |  |
| B | 31556 | 27516 | 10 | 10 | 0.03% | 0.04% |  |
| C | 31556 | 27516 | 0 | 0 | 0.00% | 0.00% |  |
| D | 31556 | 27516 | 883 | 883 | 2.80% | 3.21% |  |
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 | 14 | 235 | 14929249 | 23535.1 | 3169 | 3117 | 634.2 |
| A | 0 | 13 | 339942 | 531.1 | 3169 | 3117 | 634.2 |
| A | 6 | 16 | 260370 | 405.63 | 3169 | 3117 | 634.2 |
| B | 0 | 189 | 133578 | 194.52 | 3501 | 3413 | 669.2 |
| B | 10 | 245 | 108281 | 156.72 | 3501 | 3413 | 669.2 |
| B | 0 | 219 | 99442 | 143.51 | 3501 | 3413 | 669.2 |
| C | 14 | 238 | 543557 | 679.1 | 3394 | 3424 | 795.4 |
| C | 15 | 208 | 43684 | 50.62 | 3394 | 3424 | 795.4 |
| C | 13 | 61 | 23248 | 24.92 | 3394 | 3424 | 795.4 |
| D | 1 | 52 | 3946478 | 4937.64 | 3378 | 3297 | 798.6 |
| D | 5 | 222 | 1100300 | 1373.66 | 3378 | 3297 | 798.6 |
| D | 2 | 250 | 595037 | 740.97 | 3378 | 3297 | 798.6 |
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 |  |