Observation information
- date-obs: 2018-02-18
- time-obs: 04:24:51.764900000
- date-end: 2018-02-18
- time-end: 06:28:46.767400000
- obs_id: A04_115T02_9000001900
- exposure: 3745.5965718
- sourceid: M 87
- observer: varsha
- ra_pnt: 187.7059
- dec_pnt: 12.39112
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_115T02_9000001900_12938cztM0_level2.evt
| modeM0/AS1A04_115T02_9000001900_12938cztM0_level2_quad_clean.evt
|
| Size (bytes) | 481,020,480 | 88,283,520 |
| Size | 458.7 MB
| 84.2 MB
|
| Events in quadrant A | 3,555,290 | 569,204 |
| Events in quadrant B | 4,130,997 | 553,706 |
| Events in quadrant C | 3,044,190 | 568,949 |
| Events in quadrant D | 3,416,275 | 548,741 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14387 | 2 |
| B | 0 | 15954 | 1 |
| C | 0 | 12760 | 1 |
| D | 0 | 13920 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6200 | 124 | 2.000000% |
| B | 6200 | 450 | 7.258065% |
| C | 6200 | 44 | 0.709677% |
| D | 6200 | 114 | 1.838710% |
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 | 7436 | 6202 | 36 | 36 | 0.48% | 0.58% |  |
| B | 7435 | 6201 | 260 | 260 | 3.50% | 4.19% |  |
| C | 7436 | 6202 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7436 | 6202 | 61 | 61 | 0.82% | 0.98% |  |
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 | 15 | 223 | 144633 | 886.88 | 809 | 793 | 162.2 |
| A | 1 | 162 | 89113 | 544.56 | 809 | 793 | 162.2 |
| A | 15 | 239 | 85252 | 520.75 | 809 | 793 | 162.2 |
| B | 4 | 239 | 893966 | 6103.72 | 771 | 754 | 146.3 |
| B | 3 | 64 | 188644 | 1283.94 | 771 | 754 | 146.3 |
| B | 12 | 111 | 16097 | 104.85 | 771 | 754 | 146.3 |
| C | 13 | 61 | 5499 | 26.34 | 779 | 784 | 179.0 |
| C | 12 | 4 | 3064 | 12.74 | 779 | 784 | 179.0 |
| C | 8 | 222 | 2260 | 8.24 | 779 | 784 | 179.0 |
| D | 1 | 52 | 334005 | 1786.07 | 781 | 762 | 186.6 |
| D | 2 | 14 | 81572 | 433.12 | 781 | 762 | 186.6 |
| D | 8 | 195 | 42646 | 224.48 | 781 | 762 | 186.6 |
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 |  |