Observation information
- date-obs: 2020-03-22
- time-obs: 22:33:03.189700000
- date-end: 2020-03-23
- time-end: 00:46:29.185200000
- obs_id: A07_118T01_9000003586
- exposure: 4681.05818959
- 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_24243cztM0_level2.evt
| modeM0/AS1A07_118T01_9000003586_24243cztM0_level2_quad_clean.evt
|
| Size (bytes) | 518,584,320 | 104,523,840 |
| Size | 494.6 MB
| 99.7 MB
|
| Events in quadrant A | 3,261,362 | 690,775 |
| Events in quadrant B | 3,395,734 | 715,792 |
| Events in quadrant C | 3,565,529 | 681,542 |
| Events in quadrant D | 5,056,468 | 638,447 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13751 | 2 |
| B | 0 | 14123 | 2 |
| C | 0 | 14772 | 2 |
| D | 0 | 19336 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 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 | 6289 | 47 | 0.747337% |
| B | 6289 | 76 | 1.208459% |
| C | 6289 | 99 | 1.574177% |
| D | 6289 | 229 | 3.641278% |
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 | 7554 | 6290 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7554 | 6290 | 6 | 6 | 0.08% | 0.10% |  |
| C | 7554 | 6290 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7554 | 6290 | 268 | 268 | 3.55% | 4.26% |  |
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 | 24605 | 142.46 | 835 | 820 | 167.0 |
| A | 3 | 1 | 15342 | 86.98 | 835 | 820 | 167.0 |
| A | 13 | 254 | 11534 | 64.17 | 835 | 820 | 167.0 |
| B | 15 | 33 | 78428 | 492.89 | 842 | 822 | 157.4 |
| B | 12 | 111 | 18488 | 112.2 | 842 | 822 | 157.4 |
| B | 11 | 111 | 16026 | 96.56 | 842 | 822 | 157.4 |
| C | 7 | 247 | 219035 | 1149.41 | 814 | 823 | 189.8 |
| C | 14 | 238 | 129269 | 676.58 | 814 | 823 | 189.8 |
| C | 2 | 16 | 38266 | 197.23 | 814 | 823 | 189.8 |
| D | 8 | 195 | 1474578 | 7552.91 | 806 | 785 | 195.1 |
| D | 1 | 52 | 425012 | 2174.08 | 806 | 785 | 195.1 |
| D | 7 | 38 | 66916 | 338.91 | 806 | 785 | 195.1 |
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 |  |