Observation information
- date-obs: 2021-12-28
- time-obs: 09:58:45.987800000
- date-end: 2021-12-28
- time-end: 10:39:46.908900000
- obs_id: T04_091T01_9000004822
- exposure: 539.554555982
- 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_33797cztM0_level2.evt
| modeM0/AS1T04_091T01_9000004822_33797cztM0_level2_quad_clean.evt
|
| Size (bytes) | 98,729,280 | 13,559,040 |
| Size | 94.2 MB
| 12.9 MB
|
| Events in quadrant A | 992,557 | 82,317 |
| Events in quadrant B | 494,651 | 90,737 |
| Events in quadrant C | 568,436 | 87,433 |
| Events in quadrant D | 873,999 | 83,034 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3549 | 2 |
| B | 0 | 1945 | 1 |
| C | 0 | 2295 | 1 |
| D | 0 | 3238 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 850 | 203 | 23.882353% |
| B | 850 | 6 | 0.705882% |
| C | 850 | 11 | 1.294118% |
| D | 850 | 9 | 1.058824% |
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 | 850 | 850 | 138 | 138 | 16.24% | 16.24% |  |
| B | 850 | 850 | 2 | 2 | 0.24% | 0.24% |  |
| C | 850 | 850 | 11 | 11 | 1.29% | 1.29% |  |
| D | 850 | 850 | 6 | 6 | 0.71% | 0.71% |  |
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 | 572196 | 24919.61 | 107 | 105 | 23.0 |
| A | 10 | 83 | 4378 | 186.13 | 107 | 105 | 23.0 |
| A | 13 | 6 | 1807 | 74.14 | 107 | 105 | 23.0 |
| B | 5 | 172 | 29161 | 1229.93 | 114 | 112 | 23.6 |
| B | 15 | 222 | 5234 | 216.86 | 114 | 112 | 23.6 |
| B | 0 | 197 | 2801 | 113.85 | 114 | 112 | 23.6 |
| C | 0 | 10 | 51654 | 1872.58 | 112 | 113 | 27.5 |
| C | 15 | 214 | 42509 | 1540.32 | 112 | 113 | 27.5 |
| C | 4 | 254 | 21189 | 765.73 | 112 | 113 | 27.5 |
| D | 8 | 195 | 290566 | 10035.25 | 114 | 111 | 28.9 |
| D | 12 | 235 | 73007 | 2518.56 | 114 | 111 | 28.9 |
| D | 2 | 250 | 35431 | 1220.31 | 114 | 111 | 28.9 |
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 |  |