Observation information
- date-obs: 2021-02-19
- time-obs: 17:54:34.876400000
- date-end: 2021-02-19
- time-end: 20:20:18.877900000
- obs_id: A10_048T07_9000004188
- exposure: 4777.86888741
- 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_29184cztM0_level2.evt
| modeM0/AS1A10_048T07_9000004188_29184cztM0_level2_quad_clean.evt
|
| Size (bytes) | 611,700,480 | 101,041,920 |
| Size | 583.4 MB
| 96.4 MB
|
| Events in quadrant A | 3,432,747 | 657,659 |
| Events in quadrant B | 3,550,814 | 678,597 |
| Events in quadrant C | 5,802,057 | 639,377 |
| Events in quadrant D | 5,289,206 | 619,820 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14392 | 2 |
| B | 0 | 14737 | 2 |
| C | 0 | 22016 | 2 |
| D | 0 | 20316 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6666 | 80 | 1.200120% |
| B | 6666 | 143 | 2.145215% |
| C | 6666 | 438 | 6.570657% |
| D | 6665 | 330 | 4.951238% |
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 | 7591 | 6667 | 15 | 15 | 0.20% | 0.22% |  |
| B | 7591 | 6667 | 12 | 12 | 0.16% | 0.18% |  |
| C | 7591 | 6667 | 32 | 32 | 0.42% | 0.48% |  |
| D | 7590 | 6666 | 235 | 235 | 3.10% | 3.53% |  |
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 | 174 | 120388 | 687.52 | 858 | 840 | 173.9 |
| A | 13 | 254 | 12235 | 65.53 | 858 | 840 | 173.9 |
| A | 3 | 137 | 8386 | 43.4 | 858 | 840 | 173.9 |
| B | 0 | 183 | 108437 | 657.12 | 859 | 841 | 163.7 |
| B | 5 | 255 | 27087 | 160.29 | 859 | 841 | 163.7 |
| B | 12 | 111 | 20298 | 118.83 | 859 | 841 | 163.7 |
| C | 3 | 233 | 2447531 | 12737.02 | 823 | 830 | 192.1 |
| C | 14 | 238 | 130613 | 675.62 | 823 | 830 | 192.1 |
| C | 2 | 114 | 15505 | 76.4 | 823 | 830 | 192.1 |
| D | 1 | 52 | 834173 | 4218.48 | 826 | 805 | 197.6 |
| D | 13 | 153 | 589038 | 2977.61 | 826 | 805 | 197.6 |
| D | 8 | 195 | 586090 | 2962.69 | 826 | 805 | 197.6 |
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 |  |