Observation information
- date-obs: 2021-12-28
- time-obs: 15:32:05.901100000
- date-end: 2021-12-28
- time-end: 17:36:03.899500000
- obs_id: T04_091T01_9000004822
- exposure: 2693.52605425
- sourceid: ngc4509
- observer: jyoti
- ra_pnt: 188.2771
- dec_pnt: 32.0909
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T04_091T01_9000004822_33801cztM0_level2.evt
| modeM0/AS1T04_091T01_9000004822_33801cztM0_level2_quad_clean.evt
|
| Size (bytes) | 539,121,600 | 61,142,400 |
| Size | 514.1 MB
| 58.3 MB
|
| Events in quadrant A | 4,418,857 | 359,201 |
| Events in quadrant B | 3,067,980 | 389,847 |
| Events in quadrant C | 3,183,849 | 392,171 |
| Events in quadrant D | 5,325,503 | 366,300 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 100 | 0 |
| B | 0 | 100 | 0 |
| C | 0 | 100 | 0 |
| D | 0 | 100 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16405 | 3 |
| B | 0 | 12228 | 2 |
| C | 0 | 12767 | 2 |
| D | 0 | 19258 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25 | 0 |
| B | 0 | 25 | 0 |
| C | 0 | 25 | 0 |
| D | 0 | 26 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4896 | 769 | 15.706699% |
| B | 4896 | 98 | 2.001634% |
| C | 4896 | 87 | 1.776961% |
| D | 4896 | 396 | 8.088235% |
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 | 7018 | 4897 | 502 | 502 | 7.15% | 10.25% |  |
| B | 7018 | 4897 | 64 | 64 | 0.91% | 1.31% |  |
| C | 7018 | 4897 | 58 | 58 | 0.83% | 1.18% |  |
| D | 7018 | 4897 | 357 | 357 | 5.09% | 7.29% |  |
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 | 15 | 237 | 2174025 | 18938.58 | 575 | 566 | 114.8 |
| A | 13 | 6 | 10322 | 85.01 | 575 | 566 | 114.8 |
| A | 10 | 83 | 10227 | 84.18 | 575 | 566 | 114.8 |
| B | 5 | 172 | 392847 | 3412.89 | 616 | 601 | 114.9 |
| B | 0 | 219 | 64122 | 552.69 | 616 | 601 | 114.9 |
| B | 0 | 190 | 48803 | 419.4 | 616 | 601 | 114.9 |
| C | 15 | 214 | 215471 | 1553.66 | 611 | 617 | 138.3 |
| C | 3 | 233 | 179794 | 1295.67 | 611 | 617 | 138.3 |
| C | 0 | 10 | 136022 | 979.15 | 611 | 617 | 138.3 |
| D | 8 | 195 | 1150220 | 7800.09 | 599 | 585 | 147.4 |
| D | 12 | 235 | 838102 | 5682.42 | 599 | 585 | 147.4 |
| D | 2 | 250 | 524914 | 3557.49 | 599 | 585 | 147.4 |
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 |  |