Observation information
- date-obs: 2016-09-29
- time-obs: 13:50:15.804400000
- date-end: 2016-09-29
- time-end: 15:57:12.800000000
- obs_id: G05_204T01_9000000688
- exposure: 6364.21217235
- sourceid: Holmberg II X-1
- observer: jmurthy
- ra_pnt: 124.8742
- dec_pnt: 70.70506
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_204T01_9000000688_05440cztM0_level2.evt
| modeM0/AS1G05_204T01_9000000688_05440cztM0_level2_quad_clean.evt
|
| Size (bytes) | 472,763,520 | 108,423,360 |
| Size | 450.9 MB
| 103.4 MB
|
| Events in quadrant A | 3,080,200 | 720,307 |
| Events in quadrant B | 4,028,693 | 715,920 |
| Events in quadrant C | 2,937,758 | 718,655 |
| Events in quadrant D | 3,836,140 | 681,906 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13595 | 2 |
| B | 0 | 16342 | 1 |
| C | 0 | 13179 | 1 |
| D | 0 | 15696 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6407 | 66 | 1.030123% |
| B | 6407 | 73 | 1.139379% |
| C | 6407 | 37 | 0.577493% |
| D | 6407 | 87 | 1.357890% |
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 | 7617 | 6408 | 6 | 6 | 0.08% | 0.09% |  |
| B | 7617 | 6408 | 6 | 6 | 0.08% | 0.09% |  |
| C | 7617 | 6408 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7617 | 6408 | 44 | 44 | 0.58% | 0.69% |  |
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 | 50 | 88894 | 574.59 | 760 | 743 | 153.4 |
| A | 15 | 174 | 43414 | 278.14 | 760 | 743 | 153.4 |
| A | 13 | 6 | 18488 | 115.67 | 760 | 743 | 153.4 |
| B | 15 | 204 | 923539 | 6391.5 | 764 | 746 | 144.4 |
| B | 11 | 51 | 61402 | 420.12 | 764 | 746 | 144.4 |
| B | 4 | 48 | 23986 | 160.97 | 764 | 746 | 144.4 |
| C | 14 | 67 | 25349 | 144.2 | 745 | 748 | 170.6 |
| C | 13 | 61 | 6218 | 32.06 | 745 | 748 | 170.6 |
| C | 1 | 16 | 5294 | 26.65 | 745 | 748 | 170.6 |
| D | 2 | 33 | 330954 | 1813.68 | 743 | 718 | 182.1 |
| D | 8 | 195 | 190696 | 1043.38 | 743 | 718 | 182.1 |
| D | 2 | 63 | 173154 | 947.03 | 743 | 718 | 182.1 |
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 |  |