Observation information
- date-obs: 2017-11-14
- time-obs: 03:54:15.808700000
- date-end: 2017-11-14
- time-end: 06:05:14.811400000
- obs_id: A04_021T06_9000001688
- exposure: 3075.92182465
- sourceid: M31 Field No. 7
- observer: dleahy
- ra_pnt: 11.22142
- dec_pnt: 41.16111
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_021T06_9000001688_11516cztM0_level2.evt
| modeM0/AS1A04_021T06_9000001688_11516cztM0_level2_quad_clean.evt
|
| Size (bytes) | 648,521,280 | 66,890,880 |
| Size | 618.5 MB
| 63.8 MB
|
| Events in quadrant A | 8,136,786 | 322,956 |
| Events in quadrant B | 4,401,561 | 391,491 |
| Events in quadrant C | 3,155,374 | 425,120 |
| Events in quadrant D | 3,476,294 | 401,800 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28798 | 3 |
| B | 0 | 17692 | 2 |
| C | 0 | 14111 | 2 |
| D | 0 | 15009 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6933 | 2183 | 31.487091% |
| B | 6933 | 300 | 4.327131% |
| C | 6933 | 36 | 0.519256% |
| D | 6934 | 54 | 0.778771% |
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 | 7859 | 6932 | 1350 | 1350 | 17.18% | 19.47% |  |
| B | 7859 | 6935 | 140 | 140 | 1.78% | 2.02% |  |
| C | 7859 | 6935 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7860 | 6936 | 24 | 24 | 0.31% | 0.35% |  |
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 | 5 | 5551861 | 41556.91 | 648 | 633 | 133.6 |
| A | 9 | 143 | 38775 | 285.53 | 648 | 633 | 133.6 |
| A | 8 | 15 | 11061 | 78.06 | 648 | 633 | 133.6 |
| B | 4 | 239 | 667286 | 4262.7 | 813 | 792 | 156.4 |
| B | 3 | 64 | 303823 | 1938.1 | 813 | 792 | 156.4 |
| B | 15 | 204 | 76244 | 482.57 | 813 | 792 | 156.4 |
| C | 13 | 61 | 6045 | 27.77 | 809 | 815 | 188.4 |
| C | 3 | 202 | 1925 | 5.89 | 809 | 815 | 188.4 |
| C | 12 | 4 | 1792 | 5.19 | 809 | 815 | 188.4 |
| D | 2 | 120 | 107935 | 557.15 | 798 | 775 | 192.3 |
| D | 1 | 52 | 74658 | 384.14 | 798 | 775 | 192.3 |
| D | 13 | 122 | 56499 | 289.72 | 798 | 775 | 192.3 |
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 |  |