Observation information
- date-obs: 2019-03-11
- time-obs: 11:43:10.418300000
- date-end: 2019-03-11
- time-end: 14:04:00.421000000
- obs_id: A06_003T01_9000002786
- exposure: 3622.19312146
- 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_18656cztM0_level2.evt
| modeM0/AS1A06_003T01_9000002786_18656cztM0_level2_quad_clean.evt
|
| Size (bytes) | 713,465,280 | 80,634,240 |
| Size | 680.4 MB
| 76.9 MB
|
| Events in quadrant A | 3,651,089 | 534,645 |
| Events in quadrant B | 3,537,312 | 542,648 |
| Events in quadrant C | 3,920,217 | 519,514 |
| Events in quadrant D | 10,062,046 | 393,620 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15128 | 2 |
| B | 0 | 14709 | 3 |
| C | 0 | 15955 | 2 |
| D | 0 | 34489 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6454 | 130 | 2.014255% |
| B | 6453 | 133 | 2.061057% |
| C | 6453 | 187 | 2.897877% |
| D | 6453 | 2551 | 39.532001% |
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 | 7694 | 6454 | 12 | 12 | 0.16% | 0.19% |  |
| B | 7693 | 6453 | 7 | 7 | 0.09% | 0.11% |  |
| C | 7693 | 6453 | 7 | 7 | 0.09% | 0.11% |  |
| D | 7692 | 6452 | 2435 | 2435 | 31.66% | 37.74% |  |
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 | 161550 | 902.96 | 895 | 880 | 177.9 |
| A | 6 | 16 | 30563 | 166.82 | 895 | 880 | 177.9 |
| A | 13 | 254 | 9035 | 45.83 | 895 | 880 | 177.9 |
| B | 4 | 216 | 31899 | 188.61 | 885 | 865 | 164.5 |
| B | 4 | 80 | 22068 | 128.86 | 885 | 865 | 164.5 |
| B | 12 | 111 | 19310 | 112.1 | 885 | 865 | 164.5 |
| C | 3 | 233 | 287778 | 1446.55 | 859 | 869 | 198.3 |
| C | 9 | 221 | 138756 | 695.2 | 859 | 869 | 198.3 |
| C | 14 | 238 | 134603 | 674.27 | 859 | 869 | 198.3 |
| D | 7 | 238 | 6972673 | 39410.57 | 735 | 716 | 176.9 |
| D | 1 | 52 | 226399 | 1275.72 | 735 | 716 | 176.9 |
| D | 13 | 168 | 40007 | 222.1 | 735 | 716 | 176.9 |
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 |  |