Observation information
- date-obs: 2020-08-21
- time-obs: 23:32:55.328700000
- date-end: 2020-08-22
- time-end: 00:25:00.328100000
- obs_id: A09_120T02_9000003834
- exposure: 3005.24757753
- 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_9000003834_26493cztM0_level2.evt
| modeM0/AS1A09_120T02_9000003834_26493cztM0_level2_quad_clean.evt
|
| Size (bytes) | 284,019,840 | 63,426,240 |
| Size | 270.9 MB
| 60.5 MB
|
| Events in quadrant A | 1,407,013 | 440,758 |
| Events in quadrant B | 1,455,243 | 446,806 |
| Events in quadrant C | 1,556,846 | 426,669 |
| Events in quadrant D | 3,968,538 | 383,599 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6287 | 0 |
| B | 0 | 6307 | 0 |
| C | 0 | 6501 | 0 |
| D | 0 | 13986 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3126 | 3 | 0.095969% |
| B | 3126 | 4 | 0.127959% |
| C | 3126 | 13 | 0.415867% |
| D | 3126 | 509 | 16.282790% |
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 | 3126 | 3126 | 0 | 0 | 0.00% | 0.00% |  |
| B | 3126 | 3126 | 0 | 0 | 0.00% | 0.00% |  |
| C | 3126 | 3126 | 1 | 1 | 0.03% | 0.03% |  |
| D | 3126 | 3126 | 538 | 538 | 17.21% | 17.21% |  |
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 | 13 | 254 | 4940 | 60.71 | 365 | 359 | 75.5 |
| A | 3 | 137 | 3167 | 37.22 | 365 | 359 | 75.5 |
| A | 0 | 226 | 2998 | 34.98 | 365 | 359 | 75.5 |
| B | 0 | 219 | 10301 | 137.49 | 368 | 361 | 72.3 |
| B | 12 | 111 | 8161 | 107.89 | 368 | 361 | 72.3 |
| B | 0 | 229 | 7605 | 100.2 | 368 | 361 | 72.3 |
| C | 3 | 233 | 113914 | 1324.25 | 354 | 358 | 85.8 |
| C | 14 | 238 | 57356 | 664.69 | 354 | 358 | 85.8 |
| C | 4 | 254 | 4882 | 52.76 | 354 | 358 | 85.8 |
| D | 1 | 52 | 1814773 | 22097.18 | 335 | 328 | 82.1 |
| D | 7 | 80 | 600770 | 7312.47 | 335 | 328 | 82.1 |
| D | 12 | 233 | 272582 | 3315.64 | 335 | 328 | 82.1 |
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 |  |