Observation information
- date-obs: 2020-03-22
- time-obs: 20:44:43.193400000
- date-end: 2020-03-22
- time-end: 23:01:07.188700000
- obs_id: A07_118T01_9000003586
- exposure: 4228.63015015
- sourceid: NGC6822
- observer: dthilker
- ra_pnt: 296.2542
- dec_pnt: -14.81528
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A07_118T01_9000003586_24242cztM0_level2.evt
| modeM0/AS1A07_118T01_9000003586_24242cztM0_level2_quad_clean.evt
|
| Size (bytes) | 480,767,040 | 89,127,360 |
| Size | 458.5 MB
| 85.0 MB
|
| Events in quadrant A | 3,311,745 | 568,081 |
| Events in quadrant B | 3,597,029 | 584,402 |
| Events in quadrant C | 3,655,936 | 553,890 |
| Events in quadrant D | 3,561,961 | 547,300 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14010 | 2 |
| B | 0 | 14886 | 2 |
| C | 0 | 14908 | 2 |
| D | 0 | 14910 | 2 |
| 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 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6382 | 53 | 0.830461% |
| B | 6382 | 186 | 2.914447% |
| C | 6382 | 123 | 1.927296% |
| D | 6382 | 90 | 1.410216% |
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 | 7522 | 6382 | 9 | 9 | 0.12% | 0.14% |  |
| B | 7522 | 6382 | 71 | 71 | 0.94% | 1.11% |  |
| C | 7522 | 6382 | 15 | 15 | 0.20% | 0.24% |  |
| D | 7522 | 6382 | 55 | 55 | 0.73% | 0.86% |  |
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 | 6 | 16 | 105776 | 631.06 | 825 | 808 | 166.3 |
| A | 3 | 1 | 22037 | 127.63 | 825 | 808 | 166.3 |
| A | 13 | 254 | 12223 | 68.63 | 825 | 808 | 166.3 |
| B | 0 | 245 | 235448 | 1507.77 | 824 | 806 | 155.6 |
| B | 15 | 33 | 81203 | 516.62 | 824 | 806 | 155.6 |
| B | 4 | 52 | 22192 | 137.42 | 824 | 806 | 155.6 |
| C | 7 | 247 | 253760 | 1366.74 | 797 | 803 | 185.1 |
| C | 2 | 16 | 150448 | 808.54 | 797 | 803 | 185.1 |
| C | 14 | 238 | 126586 | 679.61 | 797 | 803 | 185.1 |
| D | 7 | 38 | 262211 | 1338.55 | 807 | 786 | 195.3 |
| D | 8 | 195 | 109441 | 556.34 | 807 | 786 | 195.3 |
| D | 1 | 52 | 81637 | 413.97 | 807 | 786 | 195.3 |
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 |  |