Observation information
- date-obs: 2016-12-09
- time-obs: 08:11:36.717600000
- date-end: 2016-12-09
- time-end: 09:25:45.718600000
- obs_id: A02_046T01_9000000864
- exposure: 4415.70757575
- sourceid: Holmberg-II X-I
- observer: rita
- ra_pnt: 124.5404
- dec_pnt: 70.69764
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_046T01_9000000864_06487cztM0_level2.evt
| modeM0/AS1A02_046T01_9000000864_06487cztM0_level2_quad_clean.evt
|
| Size (bytes) | 283,397,760 | 78,534,720 |
| Size | 270.3 MB
| 74.9 MB
|
| Events in quadrant A | 1,987,591 | 528,594 |
| Events in quadrant B | 2,193,392 | 528,965 |
| Events in quadrant C | 1,837,546 | 513,877 |
| Events in quadrant D | 2,260,577 | 494,293 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9133 | 1 |
| B | 0 | 9607 | 1 |
| C | 0 | 8949 | 1 |
| D | 0 | 9659 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 88 | 0 |
| B | 0 | 88 | 0 |
| C | 0 | 88 | 0 |
| D | 0 | 88 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 1 | 251318637792 | 0 |
| B | 1 | -1 | -1 |
| C | 1 | -1 | -1 |
| D | 1 | -1 | -1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4447 | 26 | 0.584664% |
| B | 4447 | 54 | 1.214302% |
| C | 4447 | 5 | 0.112435% |
| D | 4447 | 43 | 0.966944% |
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 | 4447 | 4447 | 3 | 3 | 0.07% | 0.07% |  |
| B | 4447 | 4447 | 25 | 25 | 0.56% | 0.56% |  |
| C | 4447 | 4447 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4447 | 4447 | 26 | 26 | 0.58% | 0.58% |  |
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 | 8 | 15 | 60036 | 589.66 | 492 | 482 | 101.0 |
| A | 15 | 234 | 11981 | 113.86 | 492 | 482 | 101.0 |
| A | 15 | 236 | 9352 | 87.82 | 492 | 482 | 101.0 |
| B | 0 | 228 | 85560 | 902.33 | 491 | 479 | 94.3 |
| B | 0 | 219 | 66179 | 696.78 | 491 | 479 | 94.3 |
| B | 0 | 214 | 54974 | 577.95 | 491 | 479 | 94.3 |
| C | 13 | 61 | 3886 | 31.54 | 469 | 470 | 108.3 |
| C | 12 | 4 | 2279 | 16.7 | 469 | 470 | 108.3 |
| C | 1 | 16 | 1605 | 10.48 | 469 | 470 | 108.3 |
| D | 8 | 195 | 242348 | 2108.07 | 471 | 456 | 114.7 |
| D | 2 | 152 | 81147 | 703.22 | 471 | 456 | 114.7 |
| D | 2 | 33 | 64578 | 558.82 | 471 | 456 | 114.7 |
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 |  |