Observation information
- date-obs: 2017-11-29
- time-obs: 09:39:23.837200000
- date-end: 2017-11-29
- time-end: 11:49:39.837400000
- obs_id: A04_167T04_9000001734
- exposure: 4565.60478615
- sourceid: NGC 266
- observer: joydeep
- ra_pnt: 12.44917
- dec_pnt: 32.27778
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_167T04_9000001734_11742cztM0_level2.evt
| modeM0/AS1A04_167T04_9000001734_11742cztM0_level2_quad_clean.evt
|
| Size (bytes) | 644,158,080 | 90,311,040 |
| Size | 614.3 MB
| 86.1 MB
|
| Events in quadrant A | 4,339,759 | 551,628 |
| Events in quadrant B | 5,634,717 | 534,147 |
| Events in quadrant C | 3,560,964 | 574,696 |
| Events in quadrant D | 5,455,339 | 542,630 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17779 | 3 |
| B | 0 | 21638 | 2 |
| C | 0 | 15810 | 2 |
| D | 0 | 21874 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7651 | 325 | 4.247811% |
| B | 7651 | 725 | 9.475886% |
| C | 7651 | 144 | 1.882107% |
| D | 7651 | 265 | 3.463600% |
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 | 7817 | 7655 | 11 | 11 | 0.14% | 0.14% |  |
| B | 7817 | 7655 | 329 | 329 | 4.21% | 4.30% |  |
| C | 7817 | 7655 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7817 | 7655 | 32 | 32 | 0.41% | 0.42% |  |
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 | 317100 | 1661.98 | 921 | 901 | 190.3 |
| A | 1 | 162 | 148663 | 776.66 | 921 | 901 | 190.3 |
| A | 1 | 178 | 79874 | 415.09 | 921 | 901 | 190.3 |
| B | 3 | 64 | 1010350 | 5879.44 | 894 | 870 | 171.7 |
| B | 4 | 239 | 810530 | 4715.64 | 894 | 870 | 171.7 |
| B | 15 | 204 | 194155 | 1125.73 | 894 | 870 | 171.7 |
| C | 13 | 61 | 6755 | 27.78 | 911 | 915 | 210.2 |
| C | 8 | 128 | 4289 | 16.05 | 911 | 915 | 210.2 |
| C | 14 | 234 | 3072 | 10.26 | 911 | 915 | 210.2 |
| D | 8 | 195 | 1117939 | 5142.45 | 902 | 874 | 217.2 |
| D | 1 | 52 | 586547 | 2696.17 | 902 | 874 | 217.2 |
| D | 9 | 85 | 86479 | 394.09 | 902 | 874 | 217.2 |
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 |  |