Observation information
- date-obs: 2020-10-21
- time-obs: 13:39:35.340300000
- date-end: 2020-10-21
- time-end: 15:51:46.340200000
- obs_id: T03_249T01_9000003934
- exposure: 3662.65523502
- 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_27390cztM0_level2.evt
| modeM0/AS1T03_249T01_9000003934_27390cztM0_level2_quad_clean.evt
|
| Size (bytes) | 542,381,760 | 81,979,200 |
| Size | 517.3 MB
| 78.2 MB
|
| Events in quadrant A | 3,618,266 | 506,893 |
| Events in quadrant B | 3,675,952 | 505,510 |
| Events in quadrant C | 4,031,305 | 481,807 |
| Events in quadrant D | 4,605,965 | 480,702 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15189 | 0 |
| B | 0 | 15317 | 0 |
| C | 0 | 16454 | 0 |
| D | 0 | 18344 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7284 | 134 | 1.839649% |
| B | 7284 | 168 | 2.306425% |
| C | 7283 | 279 | 3.830839% |
| D | 7283 | 311 | 4.270218% |
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 | 7754 | 7284 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7754 | 7285 | 4 | 4 | 0.05% | 0.05% |  |
| C | 7753 | 7284 | 65 | 65 | 0.84% | 0.89% |  |
| D | 7753 | 7283 | 168 | 168 | 2.17% | 2.31% |  |
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 | 11815 | 57.6 | 936 | 916 | 189.2 |
| A | 3 | 137 | 8976 | 42.59 | 936 | 916 | 189.2 |
| A | 0 | 226 | 7922 | 37.02 | 936 | 916 | 189.2 |
| B | 12 | 111 | 22108 | 119.39 | 920 | 897 | 177.7 |
| B | 11 | 111 | 19910 | 107.01 | 920 | 897 | 177.7 |
| B | 4 | 52 | 19091 | 102.41 | 920 | 897 | 177.7 |
| C | 2 | 16 | 425871 | 2030.28 | 885 | 891 | 209.3 |
| C | 14 | 238 | 139746 | 663.36 | 885 | 891 | 209.3 |
| C | 15 | 208 | 9185 | 39.62 | 885 | 891 | 209.3 |
| D | 1 | 52 | 868352 | 3993.95 | 902 | 879 | 217.2 |
| D | 2 | 250 | 180850 | 828.61 | 902 | 879 | 217.2 |
| D | 11 | 176 | 49879 | 225.6 | 902 | 879 | 217.2 |
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 |  |