Observation information
- date-obs: 2021-02-02
- time-obs: 06:37:45.977200000
- date-end: 2021-02-02
- time-end: 08:37:58.979200000
- obs_id: A10_048T07_9000004148
- exposure: 4241.31005497
- 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_9000004148_28925cztM0_level2.evt
| modeM0/AS1A10_048T07_9000004148_28925cztM0_level2_quad_clean.evt
|
| Size (bytes) | 696,461,760 | 87,733,440 |
| Size | 664.2 MB
| 83.7 MB
|
| Events in quadrant A | 3,462,276 | 552,767 |
| Events in quadrant B | 3,393,441 | 569,942 |
| Events in quadrant C | 7,384,157 | 524,905 |
| Events in quadrant D | 6,382,092 | 524,240 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14672 | 1 |
| B | 0 | 14395 | 1 |
| C | 0 | 26935 | 1 |
| D | 0 | 23814 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6948 | 128 | 1.842257% |
| B | 6949 | 143 | 2.057850% |
| C | 6949 | 1378 | 19.830191% |
| D | 6948 | 452 | 6.505469% |
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 | 7213 | 6949 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7214 | 6950 | 1 | 1 | 0.01% | 0.01% |  |
| C | 7214 | 6950 | 771 | 771 | 10.69% | 11.09% |  |
| D | 7213 | 6949 | 370 | 370 | 5.13% | 5.32% |  |
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 | 4 | 2 | 141383 | 804.35 | 854 | 834 | 174.7 |
| A | 13 | 254 | 12040 | 64.13 | 854 | 834 | 174.7 |
| A | 6 | 16 | 11887 | 63.26 | 854 | 834 | 174.7 |
| B | 15 | 33 | 27651 | 163.77 | 846 | 824 | 163.8 |
| B | 10 | 245 | 24247 | 142.99 | 846 | 824 | 163.8 |
| B | 12 | 111 | 20583 | 120.62 | 846 | 824 | 163.8 |
| C | 3 | 233 | 4186495 | 22691.51 | 781 | 785 | 184.5 |
| C | 14 | 238 | 127519 | 687.05 | 781 | 785 | 184.5 |
| C | 2 | 114 | 15658 | 80.63 | 781 | 785 | 184.5 |
| D | 8 | 195 | 2922736 | 14874.18 | 816 | 795 | 196.4 |
| D | 1 | 52 | 237878 | 1206.87 | 816 | 795 | 196.4 |
| D | 12 | 79 | 45571 | 227.93 | 816 | 795 | 196.4 |
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 |  |