Observation information
- date-obs: 2016-07-20
- time-obs: 00:09:45.988700000
- date-end: 2016-07-20
- time-end: 00:32:18.987500000
- obs_id: G05_167T02_9000000546
- exposure: 1341.96000395
- sourceid: GRS1915+105
- observer: dipankar
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_167T02_9000000546_04379cztM0_level2.evt
| modeM0/AS1G05_167T02_9000000546_04379cztM0_level2_quad_clean.evt
|
| Size (bytes) | 87,698,880 | 21,686,400 |
| Size | 83.6 MB
| 20.7 MB
|
| Events in quadrant A | 615,788 | 139,023 |
| Events in quadrant B | 747,361 | 140,005 |
| Events in quadrant C | 584,901 | 141,645 |
| Events in quadrant D | 612,729 | 134,152 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28 | 0 |
| B | 0 | 28 | 0 |
| C | 0 | 28 | 0 |
| D | 0 | 28 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2840 | 1 |
| B | 0 | 3127 | 0 |
| C | 0 | 2731 | 2 |
| D | 0 | 2843 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1353 | 4 | 0.295639% |
| B | 1353 | 18 | 1.330377% |
| C | 1352 | 1 | 0.073964% |
| D | 1353 | 1 | 0.073910% |
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 | 1353 | 1353 | 4 | 4 | 0.30% | 0.30% |  |
| B | 1353 | 1353 | 17 | 17 | 1.26% | 1.26% |  |
| C | 1353 | 1353 | 0 | 0 | 0.00% | 0.00% |  |
| D | 1353 | 1353 | 2 | 2 | 0.15% | 0.15% |  |
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 | 13 | 251 | 32330 | 1011.0 | 146 | 143 | 31.8 |
| A | 0 | 50 | 14985 | 466.19 | 146 | 143 | 31.8 |
| A | 15 | 234 | 1831 | 53.02 | 146 | 143 | 31.8 |
| B | 14 | 167 | 114006 | 3673.03 | 149 | 146 | 31.0 |
| B | 5 | 200 | 22325 | 715.48 | 149 | 146 | 31.0 |
| B | 4 | 48 | 22166 | 710.35 | 149 | 146 | 31.0 |
| C | 9 | 247 | 9255 | 253.81 | 146 | 147 | 35.9 |
| C | 14 | 48 | 2956 | 78.28 | 146 | 147 | 35.9 |
| C | 13 | 61 | 1184 | 28.9 | 146 | 147 | 35.9 |
| D | 9 | 35 | 26149 | 711.83 | 142 | 138 | 36.5 |
| D | 2 | 37 | 16677 | 452.61 | 142 | 138 | 36.5 |
| D | 4 | 95 | 8603 | 231.66 | 142 | 138 | 36.5 |
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 |  |