Observation information
- date-obs: 2019-03-11
- time-obs: 08:14:50.416600000
- date-end: 2019-03-11
- time-end: 10:35:22.417900000
- obs_id: A06_003T01_9000002786
- exposure: 3153.59090669
- sourceid: NGC 4449
- observer: hutchingsj
- ra_pnt: 187.0463
- dec_pnt: 44.09363
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A06_003T01_9000002786_18653cztM0_level2.evt
| modeM0/AS1A06_003T01_9000002786_18653cztM0_level2_quad_clean.evt
|
| Size (bytes) | 473,440,320 | 69,197,760 |
| Size | 451.5 MB
| 66.0 MB
|
| Events in quadrant A | 3,607,879 | 410,993 |
| Events in quadrant B | 3,364,297 | 417,762 |
| Events in quadrant C | 3,396,567 | 402,257 |
| Events in quadrant D | 3,513,617 | 396,311 |
Level1 data integrity
| 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 | 15016 | 2 |
| B | 0 | 14100 | 2 |
| C | 0 | 14253 | 2 |
| D | 0 | 14698 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6711 | 107 | 1.594397% |
| B | 6711 | 88 | 1.311280% |
| C | 6711 | 132 | 1.966920% |
| D | 6711 | 70 | 1.043064% |
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 | 7731 | 6711 | 14 | 14 | 0.18% | 0.21% |  |
| B | 7731 | 6711 | 1 | 1 | 0.01% | 0.01% |  |
| C | 7731 | 6711 | 7 | 7 | 0.09% | 0.10% |  |
| D | 7731 | 6711 | 3 | 3 | 0.04% | 0.04% |  |
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 | 0 | 13 | 223932 | 1291.23 | 853 | 837 | 172.8 |
| A | 6 | 16 | 78279 | 448.22 | 853 | 837 | 172.8 |
| A | 4 | 2 | 12367 | 66.73 | 853 | 837 | 172.8 |
| B | 3 | 64 | 30030 | 179.79 | 845 | 824 | 162.4 |
| B | 12 | 111 | 20045 | 118.32 | 845 | 824 | 162.4 |
| B | 11 | 111 | 17791 | 104.45 | 845 | 824 | 162.4 |
| C | 14 | 238 | 128338 | 679.56 | 809 | 812 | 187.7 |
| C | 9 | 221 | 62888 | 330.79 | 809 | 812 | 187.7 |
| C | 9 | 54 | 39269 | 204.93 | 809 | 812 | 187.7 |
| D | 7 | 238 | 131971 | 657.1 | 825 | 801 | 199.6 |
| D | 1 | 20 | 124348 | 618.91 | 825 | 801 | 199.6 |
| D | 1 | 52 | 87288 | 433.26 | 825 | 801 | 199.6 |
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 |  |