Observation information
- date-obs: 2021-02-18
- time-obs: 09:06:14.900500000
- date-end: 2021-02-18
- time-end: 11:20:24.896500000
- obs_id: A10_099T01_9000004184
- exposure: 3006.59988803
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_099T01_9000004184_29164cztM0_level2.evt
| modeM0/AS1A10_099T01_9000004184_29164cztM0_level2_quad_clean.evt
|
| Size (bytes) | 530,231,040 | 71,550,720 |
| Size | 505.7 MB
| 68.2 MB
|
| Events in quadrant A | 3,492,891 | 430,711 |
| Events in quadrant B | 3,582,848 | 437,126 |
| Events in quadrant C | 3,581,265 | 419,699 |
| Events in quadrant D | 4,943,776 | 408,715 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 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 | 14618 | 2 |
| B | 0 | 14772 | 2 |
| C | 0 | 14903 | 3 |
| D | 0 | 19368 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6748 | 94 | 1.393005% |
| B | 6748 | 94 | 1.393005% |
| C | 6747 | 132 | 1.956425% |
| D | 6747 | 266 | 3.942493% |
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 | 7833 | 6749 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7833 | 6749 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7832 | 6748 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7832 | 6748 | 140 | 140 | 1.79% | 2.07% |  |
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 | 11747 | 59.9 | 903 | 885 | 181.3 |
| A | 3 | 137 | 8653 | 42.84 | 903 | 885 | 181.3 |
| A | 0 | 13 | 8445 | 41.69 | 903 | 885 | 181.3 |
| B | 0 | 183 | 62082 | 360.88 | 888 | 866 | 169.6 |
| B | 12 | 111 | 20520 | 115.87 | 888 | 866 | 169.6 |
| B | 11 | 111 | 19070 | 107.32 | 888 | 866 | 169.6 |
| C | 14 | 238 | 139793 | 686.12 | 867 | 875 | 202.5 |
| C | 3 | 233 | 35847 | 172.73 | 867 | 875 | 202.5 |
| C | 2 | 114 | 15846 | 73.94 | 867 | 875 | 202.5 |
| D | 1 | 52 | 1294743 | 6316.51 | 870 | 848 | 204.8 |
| D | 8 | 195 | 298470 | 1452.92 | 870 | 848 | 204.8 |
| D | 13 | 104 | 36195 | 172.56 | 870 | 848 | 204.8 |
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 |  |