Observation information
- date-obs: 2016-09-29
- time-obs: 17:16:37.798200000
- date-end: 2016-09-29
- time-end: 19:21:35.795000000
- obs_id: G05_204T01_9000000688
- exposure: 6055.6363297
- 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_05442cztM0_level2.evt
| modeM0/AS1G05_204T01_9000000688_05442cztM0_level2_quad_clean.evt
|
| Size (bytes) | 496,177,920 | 107,187,840 |
| Size | 473.2 MB
| 102.2 MB
|
| Events in quadrant A | 2,921,431 | 713,817 |
| Events in quadrant B | 3,604,360 | 720,210 |
| Events in quadrant C | 3,014,458 | 728,707 |
| Events in quadrant D | 5,068,762 | 653,599 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12880 | 5 |
| B | 0 | 15061 | 7 |
| C | 0 | 13168 | 6 |
| D | 0 | 19306 | 2 |
| 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 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6152 | 43 | 0.698960% |
| B | 6151 | 117 | 1.902130% |
| C | 6151 | 30 | 0.487726% |
| D | 6153 | 765 | 12.432960% |
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 | 7497 | 6153 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7498 | 6154 | 45 | 45 | 0.60% | 0.73% |  |
| C | 7497 | 6153 | 6 | 6 | 0.08% | 0.10% |  |
| D | 7497 | 6153 | 566 | 566 | 7.55% | 9.20% |  |
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 | 51790 | 344.7 | 739 | 723 | 148.1 |
| A | 13 | 6 | 17464 | 113.0 | 739 | 723 | 148.1 |
| A | 0 | 226 | 7625 | 46.59 | 739 | 723 | 148.1 |
| B | 15 | 204 | 318297 | 2286.17 | 748 | 732 | 138.9 |
| B | 10 | 16 | 168034 | 1204.42 | 748 | 732 | 138.9 |
| B | 0 | 228 | 71557 | 509.87 | 748 | 732 | 138.9 |
| C | 9 | 247 | 78867 | 463.62 | 736 | 742 | 168.5 |
| C | 1 | 16 | 52539 | 307.38 | 736 | 742 | 168.5 |
| C | 14 | 67 | 8279 | 44.73 | 736 | 742 | 168.5 |
| D | 2 | 152 | 1515944 | 9013.25 | 695 | 674 | 168.1 |
| D | 2 | 33 | 604571 | 3592.15 | 695 | 674 | 168.1 |
| D | 8 | 195 | 105093 | 621.11 | 695 | 674 | 168.1 |
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 |  |