Observation information
- date-obs: 2018-05-22
- time-obs: 14:06:21.323300000
- date-end: 2018-05-22
- time-end: 16:10:43.319700000
- obs_id: G08_078T01_9000002110
- exposure: 3587.68037342
- 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_14320cztM0_level2.evt
| modeM0/AS1G08_078T01_9000002110_14320cztM0_level2_quad_clean.evt
|
| Size (bytes) | 543,847,680 | 76,999,680 |
| Size | 518.7 MB
| 73.4 MB
|
| Events in quadrant A | 3,452,877 | 465,613 |
| Events in quadrant B | 3,735,351 | 465,796 |
| Events in quadrant C | 3,680,350 | 457,318 |
| Events in quadrant D | 5,115,763 | 443,707 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14767 | 2 |
| B | 0 | 15596 | 1 |
| C | 0 | 14958 | 1 |
| D | 0 | 19935 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7162 | 83 | 1.158894% |
| B | 7162 | 144 | 2.010612% |
| C | 7162 | 72 | 1.005306% |
| D | 7162 | 426 | 5.948059% |
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 | 7463 | 7166 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7463 | 7166 | 19 | 19 | 0.25% | 0.27% |  |
| C | 7463 | 7166 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7463 | 7165 | 304 | 304 | 4.07% | 4.24% |  |
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 | 76389 | 426.77 | 869 | 848 | 177.0 |
| A | 8 | 15 | 27386 | 149.93 | 869 | 848 | 177.0 |
| A | 3 | 1 | 8890 | 45.43 | 869 | 848 | 177.0 |
| B | 0 | 229 | 104645 | 621.5 | 863 | 842 | 167.0 |
| B | 4 | 142 | 80969 | 479.74 | 863 | 842 | 167.0 |
| B | 10 | 245 | 49787 | 293.05 | 863 | 842 | 167.0 |
| C | 3 | 233 | 413435 | 2116.5 | 835 | 840 | 194.9 |
| C | 10 | 22 | 10217 | 48.1 | 835 | 840 | 194.9 |
| C | 13 | 61 | 5965 | 26.29 | 835 | 840 | 194.9 |
| D | 5 | 222 | 1333819 | 6804.48 | 821 | 800 | 195.9 |
| D | 1 | 52 | 207732 | 1056.3 | 821 | 800 | 195.9 |
| D | 8 | 195 | 147901 | 750.89 | 821 | 800 | 195.9 |
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 |  |