Observation information
- date-obs: 2021-02-04
- time-obs: 19:12:54.917800000
- date-end: 2021-02-04
- time-end: 21:35:55.915700000
- obs_id: A10_048T03_9000004154
- exposure: 4722.70012282
- sourceid: NGC 4981
- observer: chayan
- ra_pnt: 197.2029
- dec_pnt: -6.7775
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T03_9000004154_28963cztM0_level2.evt
| modeM0/AS1A10_048T03_9000004154_28963cztM0_level2_quad_clean.evt
|
| Size (bytes) | 560,473,920 | 105,883,200 |
| Size | 534.5 MB
| 101.0 MB
|
| Events in quadrant A | 4,031,143 | 696,839 |
| Events in quadrant B | 3,979,154 | 732,693 |
| Events in quadrant C | 3,361,754 | 689,515 |
| Events in quadrant D | 5,174,011 | 646,786 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16045 | 2 |
| B | 0 | 15811 | 2 |
| C | 0 | 13966 | 2 |
| D | 0 | 19639 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6318 | 267 | 4.226021% |
| B | 6318 | 265 | 4.194365% |
| C | 6318 | 131 | 2.073441% |
| D | 6318 | 319 | 5.049066% |
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 | 7598 | 6319 | 195 | 195 | 2.57% | 3.09% |  |
| B | 7598 | 6319 | 161 | 161 | 2.12% | 2.55% |  |
| C | 7598 | 6319 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7598 | 6319 | 226 | 226 | 2.97% | 3.58% |  |
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 | 12 | 96 | 744748 | 4457.14 | 837 | 823 | 166.9 |
| A | 1 | 113 | 27678 | 160.9 | 837 | 823 | 166.9 |
| A | 15 | 192 | 17613 | 100.6 | 837 | 823 | 166.9 |
| B | 10 | 245 | 547517 | 3444.79 | 841 | 822 | 158.7 |
| B | 0 | 229 | 113017 | 706.95 | 841 | 822 | 158.7 |
| B | 12 | 111 | 18816 | 113.38 | 841 | 822 | 158.7 |
| C | 14 | 238 | 145015 | 757.2 | 816 | 823 | 190.4 |
| C | 14 | 254 | 16073 | 80.08 | 816 | 823 | 190.4 |
| C | 2 | 114 | 14932 | 74.09 | 816 | 823 | 190.4 |
| D | 8 | 195 | 1043721 | 5512.5 | 795 | 776 | 189.2 |
| D | 1 | 52 | 922061 | 4869.46 | 795 | 776 | 189.2 |
| D | 5 | 233 | 177726 | 935.27 | 795 | 776 | 189.2 |
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 |  |