Observation information
- date-obs: 2017-07-24
- time-obs: 19:14:54.847800000
- date-end: 2017-07-24
- time-end: 21:32:47.846100000
- obs_id: G07_031T01_9000001402
- exposure: 4365.86394815
- sourceid: NGC 7293
- observer: nkrao
- ra_pnt: 337.4104
- dec_pnt: -20.83711
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_031T01_9000001402_09855cztM0_level2.evt
| modeM0/AS1G07_031T01_9000001402_09855cztM0_level2_quad_clean.evt
|
| Size (bytes) | 413,735,040 | 89,769,600 |
| Size | 394.6 MB
| 85.6 MB
|
| Events in quadrant A | 2,738,141 | 577,927 |
| Events in quadrant B | 3,031,013 | 591,815 |
| Events in quadrant C | 2,965,380 | 582,116 |
| Events in quadrant D | 3,401,178 | 562,001 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 16 |
| B | 0 | 126 | 8 |
| C | 0 | 126 | 8 |
| D | 0 | 126 | 8 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 21 | 2 |
| D | 0 | 21 | 3 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12813 | 789 |
| B | 0 | 13690 | 840 |
| C | 0 | 13478 | 812 |
| D | 0 | 15046 | 920 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5786 | 13 | 0.224680% |
| B | 5778 | 49 | 0.848044% |
| C | 5797 | 43 | 0.741763% |
| D | 5788 | 188 | 3.248100% |
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 | 7386 | 6107 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7386 | 6112 | 15 | 15 | 0.20% | 0.25% |  |
| C | 7386 | 6116 | 19 | 19 | 0.26% | 0.31% |  |
| D | 7386 | 6107 | 119 | 119 | 1.61% | 1.95% |  |
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 | 15 | 174 | 29548 | 203.54 | 698 | 684 | 141.8 |
| A | 13 | 251 | 10543 | 69.52 | 698 | 684 | 141.8 |
| A | 0 | 226 | 6286 | 39.5 | 698 | 684 | 141.8 |
| B | 4 | 81 | 194626 | 1452.25 | 706 | 688 | 133.5 |
| B | 0 | 214 | 44202 | 325.84 | 706 | 688 | 133.5 |
| B | 12 | 111 | 14668 | 104.69 | 706 | 688 | 133.5 |
| C | 4 | 254 | 250209 | 1551.99 | 691 | 696 | 160.8 |
| C | 0 | 207 | 13412 | 79.09 | 691 | 696 | 160.8 |
| C | 13 | 61 | 5211 | 28.08 | 691 | 696 | 160.8 |
| D | 10 | 253 | 262000 | 1557.56 | 672 | 656 | 167.8 |
| D | 8 | 195 | 151583 | 899.5 | 672 | 656 | 167.8 |
| D | 12 | 233 | 124919 | 740.58 | 672 | 656 | 167.8 |
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 |  |