Observation information
- date-obs: 2019-05-17
- time-obs: 21:48:10.243400000
- date-end: 2019-05-18
- time-end: 00:07:56.242200000
- obs_id: A06_003T02_9000002926
- exposure: 4154.49253424
- sourceid: NGC 4395
- observer: hutchingsj
- ra_pnt: 186.4536
- dec_pnt: 33.54693
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A06_003T02_9000002926_19654cztM0_level2.evt
| modeM0/AS1A06_003T02_9000002926_19654cztM0_level2_quad_clean.evt
|
| Size (bytes) | 452,609,280 | 93,392,640 |
| Size | 431.6 MB
| 89.1 MB
|
| Events in quadrant A | 2,988,241 | 613,406 |
| Events in quadrant B | 3,177,082 | 626,432 |
| Events in quadrant C | 3,042,243 | 589,815 |
| Events in quadrant D | 4,073,055 | 560,536 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12958 | 2 |
| B | 0 | 13452 | 2 |
| C | 0 | 13054 | 2 |
| D | 0 | 16429 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6283 | 18 | 0.286487% |
| B | 6283 | 50 | 0.795798% |
| C | 6283 | 43 | 0.684386% |
| D | 6282 | 295 | 4.695957% |
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 | 7543 | 6284 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7543 | 6284 | 17 | 17 | 0.23% | 0.27% |  |
| C | 7543 | 6284 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7542 | 6283 | 286 | 286 | 3.79% | 4.55% |  |
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 | 11 | 29 | 7584 | 44.14 | 774 | 759 | 154.6 |
| A | 0 | 226 | 6682 | 38.31 | 774 | 759 | 154.6 |
| A | 3 | 137 | 5976 | 33.74 | 774 | 759 | 154.6 |
| B | 7 | 220 | 52053 | 349.72 | 778 | 760 | 146.7 |
| B | 4 | 80 | 26803 | 177.56 | 778 | 760 | 146.7 |
| B | 3 | 112 | 21371 | 140.53 | 778 | 760 | 146.7 |
| C | 14 | 238 | 118031 | 678.0 | 745 | 752 | 173.0 |
| C | 3 | 233 | 18078 | 100.16 | 745 | 752 | 173.0 |
| C | 13 | 61 | 5303 | 26.31 | 745 | 752 | 173.0 |
| D | 1 | 52 | 368225 | 2071.5 | 731 | 709 | 177.4 |
| D | 12 | 218 | 359213 | 2020.7 | 731 | 709 | 177.4 |
| D | 12 | 225 | 326053 | 1833.8 | 731 | 709 | 177.4 |
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 |  |