Observation information
- date-obs: 2020-10-30
- time-obs: 01:22:55.118500000
- date-end: 2020-10-30
- time-end: 03:41:49.113900000
- obs_id: T03_249T01_9000003934
- exposure: 4773.92453076
- sourceid: OJ 287
- observer: pk.asat
- ra_pnt: 133.7036
- dec_pnt: 20.10851
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_249T01_9000003934_27516cztM0_level2.evt
| modeM0/AS1T03_249T01_9000003934_27516cztM0_level2_quad_clean.evt
|
| Size (bytes) | 531,463,680 | 112,916,160 |
| Size | 506.8 MB
| 107.7 MB
|
| Events in quadrant A | 3,336,315 | 762,848 |
| Events in quadrant B | 3,448,727 | 786,657 |
| Events in quadrant C | 3,357,363 | 729,139 |
| Events in quadrant D | 5,515,053 | 690,714 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13772 | 0 |
| B | 0 | 14220 | 0 |
| C | 0 | 13858 | 0 |
| D | 0 | 20722 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6463 | 16 | 0.247563% |
| B | 6463 | 28 | 0.433235% |
| C | 6463 | 63 | 0.974780% |
| D | 6463 | 644 | 9.964413% |
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 | 7823 | 6464 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7823 | 6464 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7823 | 6464 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7823 | 6464 | 585 | 585 | 7.48% | 9.05% |  |
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 | 10501 | 55.98 | 864 | 849 | 172.4 |
| A | 3 | 137 | 7495 | 38.55 | 864 | 849 | 172.4 |
| A | 0 | 226 | 7312 | 37.49 | 864 | 849 | 172.4 |
| B | 12 | 111 | 19045 | 112.84 | 866 | 848 | 161.3 |
| B | 0 | 230 | 17495 | 103.22 | 866 | 848 | 161.3 |
| B | 11 | 111 | 17176 | 101.25 | 866 | 848 | 161.3 |
| C | 14 | 238 | 136166 | 708.52 | 825 | 831 | 191.0 |
| C | 2 | 16 | 6186 | 28.03 | 825 | 831 | 191.0 |
| C | 13 | 61 | 5766 | 25.83 | 825 | 831 | 191.0 |
| D | 7 | 80 | 1932913 | 10500.14 | 777 | 760 | 184.0 |
| D | 1 | 52 | 529717 | 2874.58 | 777 | 760 | 184.0 |
| D | 2 | 250 | 51223 | 274.24 | 777 | 760 | 184.0 |
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 |  |