Observation information
- date-obs: 2020-05-01
- time-obs: 12:04:39.921900000
- date-end: 2020-05-01
- time-end: 13:59:37.923000000
- obs_id: A07_045T01_9000003628
- exposure: 4475.51013555
- sourceid: NGC 4438
- observer: Rahnapt
- ra_pnt: 186.94
- dec_pnt: 13.00883
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A07_045T01_9000003628_24828cztM0_level2.evt
| modeM0/AS1A07_045T01_9000003628_24828cztM0_level2_quad_clean.evt
|
| Size (bytes) | 458,709,120 | 90,679,680 |
| Size | 437.5 MB
| 86.5 MB
|
| Events in quadrant A | 3,182,024 | 586,079 |
| Events in quadrant B | 3,584,613 | 590,042 |
| Events in quadrant C | 3,249,501 | 557,864 |
| Events in quadrant D | 3,427,374 | 552,020 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13567 | 2 |
| B | 0 | 14815 | 1 |
| C | 0 | 13662 | 1 |
| D | 0 | 14354 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6597 | 129 | 1.955434% |
| B | 6598 | 190 | 2.879661% |
| C | 6598 | 170 | 2.576538% |
| D | 6598 | 92 | 1.394362% |
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 | 6897 | 6598 | 0 | 0 | 0.00% | 0.00% |  |
| B | 6898 | 6599 | 31 | 31 | 0.45% | 0.47% |  |
| C | 6898 | 6599 | 0 | 0 | 0.00% | 0.00% |  |
| D | 6898 | 6599 | 3 | 3 | 0.04% | 0.05% |  |
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 | 9616 | 52.51 | 825 | 807 | 167.7 |
| A | 3 | 137 | 7834 | 41.89 | 825 | 807 | 167.7 |
| A | 0 | 226 | 6950 | 36.62 | 825 | 807 | 167.7 |
| B | 3 | 64 | 359605 | 2263.05 | 813 | 789 | 158.6 |
| B | 12 | 111 | 19681 | 119.15 | 813 | 789 | 158.6 |
| B | 11 | 111 | 18134 | 109.39 | 813 | 789 | 158.6 |
| C | 14 | 238 | 125343 | 671.24 | 786 | 790 | 185.6 |
| C | 7 | 247 | 32681 | 171.87 | 786 | 790 | 185.6 |
| C | 5 | 112 | 22709 | 118.12 | 786 | 790 | 185.6 |
| D | 8 | 195 | 340687 | 1735.99 | 801 | 778 | 195.8 |
| D | 1 | 52 | 49076 | 246.67 | 801 | 778 | 195.8 |
| D | 2 | 234 | 25967 | 128.65 | 801 | 778 | 195.8 |
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 |  |