Observation information
- date-obs: 2018-05-21
- time-obs: 22:13:14.359100000
- date-end: 2018-05-22
- time-end: 00:30:10.353800000
- obs_id: G08_078T01_9000002110
- exposure: 4451.15048855
- sourceid: GRS 1915+105
- observer: ravibt
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_078T01_9000002110_14310cztM0_level2.evt
| modeM0/AS1G08_078T01_9000002110_14310cztM0_level2_quad_clean.evt
|
| Size (bytes) | 451,779,840 | 92,712,960 |
| Size | 430.9 MB
| 88.4 MB
|
| Events in quadrant A | 3,405,775 | 592,051 |
| Events in quadrant B | 3,237,315 | 597,373 |
| Events in quadrant C | 3,396,961 | 590,304 |
| Events in quadrant D | 3,199,886 | 574,133 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14285 | 3 |
| B | 0 | 13863 | 2 |
| C | 0 | 14002 | 2 |
| D | 0 | 14102 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6503 | 27 | 0.415193% |
| B | 6503 | 56 | 0.861141% |
| C | 6503 | 18 | 0.276795% |
| D | 6503 | 26 | 0.399815% |
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 | 7534 | 6505 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7534 | 6505 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7534 | 6505 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7534 | 6505 | 17 | 17 | 0.23% | 0.26% |  |
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 | 12 | 189 | 300541 | 1895.95 | 784 | 770 | 158.1 |
| A | 8 | 15 | 64619 | 403.82 | 784 | 770 | 158.1 |
| A | 9 | 143 | 18849 | 114.34 | 784 | 770 | 158.1 |
| B | 0 | 229 | 107111 | 702.86 | 787 | 769 | 151.3 |
| B | 0 | 189 | 24993 | 160.11 | 787 | 769 | 151.3 |
| B | 12 | 111 | 17937 | 113.47 | 787 | 769 | 151.3 |
| C | 3 | 233 | 400018 | 2211.57 | 768 | 771 | 180.5 |
| C | 13 | 61 | 5415 | 25.72 | 768 | 771 | 180.5 |
| C | 14 | 220 | 2712 | 10.75 | 768 | 771 | 180.5 |
| D | 5 | 222 | 192748 | 1056.95 | 760 | 745 | 181.7 |
| D | 10 | 70 | 46046 | 249.38 | 760 | 745 | 181.7 |
| D | 12 | 110 | 42138 | 227.86 | 760 | 745 | 181.7 |
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 |  |