Observation information
- date-obs: 2020-09-28
- time-obs: 03:17:05.359200000
- date-end: 2020-09-28
- time-end: 05:23:41.035100000
- obs_id: A09_120T02_9000003904
- exposure: 4900.24141149
- 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_27043cztM0_level2.evt
| modeM0/AS1A09_120T02_9000003904_27043cztM0_level2_quad_clean.evt
|
| Size (bytes) | 726,566,400 | 108,610,560 |
| Size | 692.9 MB
| 103.6 MB
|
| Events in quadrant A | 8,720,136 | 639,539 |
| Events in quadrant B | 3,693,930 | 740,974 |
| Events in quadrant C | 3,601,280 | 715,814 |
| Events in quadrant D | 5,493,540 | 682,922 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30876 | 0 |
| B | 0 | 15521 | 0 |
| C | 0 | 15241 | 0 |
| D | 0 | 21290 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7317 | 2063 | 28.194615% |
| B | 7317 | 166 | 2.268689% |
| C | 7317 | 124 | 1.694684% |
| D | 7317 | 562 | 7.680743% |
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 | 7597 | 7317 | 1545 | 1545 | 20.34% | 21.12% |  |
| B | 7597 | 7317 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7597 | 7317 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7597 | 7317 | 496 | 496 | 6.53% | 6.78% |  |
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 | 5509702 | 33243.44 | 813 | 798 | 165.7 |
| A | 6 | 16 | 64165 | 382.38 | 813 | 798 | 165.7 |
| A | 8 | 192 | 12945 | 73.3 | 813 | 798 | 165.7 |
| B | 10 | 245 | 49686 | 275.74 | 910 | 889 | 177.0 |
| B | 12 | 111 | 21292 | 115.29 | 910 | 889 | 177.0 |
| B | 0 | 219 | 20523 | 110.95 | 910 | 889 | 177.0 |
| C | 14 | 238 | 141431 | 671.39 | 881 | 889 | 209.3 |
| C | 15 | 208 | 28988 | 134.23 | 881 | 889 | 209.3 |
| C | 13 | 61 | 5926 | 24.06 | 881 | 889 | 209.3 |
| D | 1 | 52 | 2087345 | 9892.98 | 867 | 845 | 210.9 |
| D | 2 | 250 | 90871 | 426.85 | 867 | 845 | 210.9 |
| D | 2 | 234 | 33642 | 155.5 | 867 | 845 | 210.9 |
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 |  |