Observation information
- date-obs: 2021-02-20
- time-obs: 09:56:24.895600000
- date-end: 2021-02-20
- time-end: 12:03:31.898000000
- obs_id: A10_048T07_9000004188
- exposure: 2696.98400988
- sourceid: NGC 4394
- observer: chayan
- ra_pnt: 186.4817
- dec_pnt: 18.21389
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T07_9000004188_29194cztM0_level2.evt
| modeM0/AS1A10_048T07_9000004188_29194cztM0_level2_quad_clean.evt
|
| Size (bytes) | 660,003,840 | 65,194,560 |
| Size | 629.4 MB
| 62.2 MB
|
| Events in quadrant A | 3,481,338 | 398,410 |
| Events in quadrant B | 3,626,248 | 402,096 |
| Events in quadrant C | 7,001,972 | 368,822 |
| Events in quadrant D | 5,447,170 | 358,197 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14514 | 1 |
| B | 0 | 14935 | 1 |
| C | 0 | 25327 | 1 |
| D | 0 | 20847 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6392 | 60 | 0.938673% |
| B | 6392 | 66 | 1.032541% |
| C | 6393 | 732 | 11.450023% |
| D | 6393 | 450 | 7.038949% |
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 | 7627 | 6393 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7627 | 6393 | 6 | 6 | 0.08% | 0.09% |  |
| C | 7628 | 6394 | 328 | 328 | 4.30% | 5.13% |  |
| D | 7628 | 6394 | 252 | 252 | 3.30% | 3.94% |  |
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 | 12243 | 63.99 | 902 | 886 | 177.5 |
| A | 3 | 137 | 8151 | 40.94 | 902 | 886 | 177.5 |
| A | 0 | 226 | 7651 | 38.12 | 902 | 886 | 177.5 |
| B | 0 | 183 | 88408 | 524.88 | 887 | 869 | 166.8 |
| B | 0 | 229 | 36507 | 213.68 | 887 | 869 | 166.8 |
| B | 12 | 111 | 20002 | 114.72 | 887 | 869 | 166.8 |
| C | 3 | 233 | 3550165 | 18262.94 | 845 | 851 | 194.3 |
| C | 14 | 238 | 139358 | 712.69 | 845 | 851 | 194.3 |
| C | 2 | 114 | 14874 | 72.16 | 845 | 851 | 194.3 |
| D | 1 | 52 | 1355646 | 6714.84 | 849 | 829 | 201.8 |
| D | 8 | 195 | 609486 | 3016.67 | 849 | 829 | 201.8 |
| D | 13 | 153 | 133397 | 657.04 | 849 | 829 | 201.8 |
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 |  |