Observation information
- date-obs: 2017-12-29
- time-obs: 20:16:09.642500000
- date-end: 2017-12-29
- time-end: 21:40:09.649400000
- obs_id: G08_010T03_9000001800
- exposure: 2930.31013307
- sourceid: ngc 2841
- observer: jmurthy
- ra_pnt: 140.5111
- dec_pnt: 50.97648
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_010T03_9000001800_12192cztM0_level2.evt
| modeM0/AS1G08_010T03_9000001800_12192cztM0_level2_quad_clean.evt
|
| Size (bytes) | 440,674,560 | 58,360,320 |
| Size | 420.3 MB
| 55.7 MB
|
| Events in quadrant A | 2,769,178 | 365,378 |
| Events in quadrant B | 4,216,277 | 349,945 |
| Events in quadrant C | 2,367,173 | 365,257 |
| Events in quadrant D | 3,661,245 | 343,560 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 102 | 0 |
| B | 0 | 102 | 0 |
| C | 0 | 102 | 0 |
| D | 0 | 102 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11539 | 3 |
| B | 0 | 15889 | 2 |
| C | 0 | 10448 | 2 |
| D | 0 | 14268 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4875 | 135 | 2.769231% |
| B | 4875 | 896 | 18.379487% |
| C | 4875 | 45 | 0.923077% |
| D | 4875 | 259 | 5.312821% |
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 | 5041 | 4878 | 14 | 14 | 0.28% | 0.29% |  |
| B | 5041 | 4878 | 537 | 537 | 10.65% | 11.01% |  |
| C | 5041 | 4878 | 8 | 8 | 0.16% | 0.16% |  |
| D | 5041 | 4878 | 165 | 165 | 3.27% | 3.38% |  |
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 | 9 | 143 | 123616 | 1000.75 | 595 | 580 | 122.9 |
| A | 1 | 162 | 118024 | 955.26 | 595 | 580 | 122.9 |
| A | 1 | 178 | 63555 | 512.22 | 595 | 580 | 122.9 |
| B | 4 | 239 | 1868672 | 17885.04 | 531 | 518 | 104.5 |
| B | 11 | 51 | 95849 | 912.67 | 531 | 518 | 104.5 |
| B | 15 | 204 | 87694 | 834.59 | 531 | 518 | 104.5 |
| C | 15 | 208 | 96063 | 712.76 | 576 | 579 | 134.0 |
| C | 12 | 4 | 10914 | 77.15 | 576 | 579 | 134.0 |
| C | 4 | 175 | 5917 | 39.85 | 576 | 579 | 134.0 |
| D | 1 | 52 | 868153 | 6283.58 | 566 | 549 | 138.1 |
| D | 14 | 34 | 345843 | 2500.77 | 566 | 549 | 138.1 |
| D | 10 | 199 | 76869 | 552.74 | 566 | 549 | 138.1 |
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 |  |