Observation information
- date-obs: 2017-04-04
- time-obs: 02:34:55.347000000
- date-end: 2017-04-04
- time-end: 04:50:25.343200000
- obs_id: A03_103T01_9000001132
- exposure: 7179.73535653
- sourceid: NGC 2808
- observer: sarita
- ra_pnt: 138.0128
- dec_pnt: -64.83842
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_103T01_9000001132_08200cztM0_level2.evt
| modeM0/AS1A03_103T01_9000001132_08200cztM0_level2_quad_clean.evt
|
| Size (bytes) | 445,536,000 | 128,280,960 |
| Size | 424.9 MB
| 122.3 MB
|
| Events in quadrant A | 3,230,088 | 856,660 |
| Events in quadrant B | 3,364,483 | 871,539 |
| Events in quadrant C | 3,194,120 | 842,197 |
| Events in quadrant D | 3,211,897 | 811,061 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14742 | 3 |
| B | 0 | 14898 | 2 |
| C | 0 | 14723 | 2 |
| D | 0 | 14959 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7233 | 95 | 1.313425% |
| B | 7233 | 120 | 1.659063% |
| C | 7233 | 97 | 1.341076% |
| D | 7233 | 87 | 1.202820% |
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 | 7933 | 7233 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7933 | 7233 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7933 | 7233 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7933 | 7233 | 6 | 6 | 0.08% | 0.08% |  |
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 | 15 | 15428 | 86.36 | 832 | 810 | 169.3 |
| A | 0 | 128 | 8767 | 47.01 | 832 | 810 | 169.3 |
| A | 0 | 226 | 7777 | 41.16 | 832 | 810 | 169.3 |
| B | 4 | 81 | 61014 | 376.47 | 839 | 817 | 159.9 |
| B | 0 | 214 | 25576 | 154.84 | 839 | 817 | 159.9 |
| B | 12 | 111 | 16818 | 100.07 | 839 | 817 | 159.9 |
| C | 8 | 128 | 13881 | 69.33 | 812 | 814 | 188.5 |
| C | 8 | 112 | 6806 | 31.79 | 812 | 814 | 188.5 |
| C | 13 | 61 | 6393 | 29.6 | 812 | 814 | 188.5 |
| D | 1 | 52 | 89369 | 446.36 | 807 | 780 | 198.5 |
| D | 2 | 234 | 26388 | 129.03 | 807 | 780 | 198.5 |
| D | 12 | 233 | 22579 | 109.84 | 807 | 780 | 198.5 |
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 |  |