Observation information
- date-obs: 2016-06-12
- time-obs: 12:52:50.132900000
- date-end: 2016-06-12
- time-end: 15:21:26.131200000
- obs_id: G05_189T01_9000000492
- exposure: 4283.3446085
- sourceid: GRS 1915+105
- observer: anuj
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_189T01_9000000492_03826cztM0_level2.evt
| modeM0/AS1G05_189T01_9000000492_03826cztM0_level2_quad_clean.evt
|
| Size (bytes) | 869,132,160 | 78,071,040 |
| Size | 828.9 MB
| 74.5 MB
|
| Events in quadrant A | 9,033,862 | 413,048 |
| Events in quadrant B | 6,562,164 | 456,741 |
| Events in quadrant C | 5,890,991 | 445,038 |
| Events in quadrant D | 4,240,288 | 438,475 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 32835 | 5 |
| B | 0 | 25333 | 4 |
| C | 0 | 23585 | 4 |
| D | 0 | 18950 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 178 | 0 |
| B | 0 | 178 | 0 |
| C | 0 | 178 | 0 |
| D | 0 | 178 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8781 | 2002 | 22.799226% |
| B | 8781 | 976 | 11.114907% |
| C | 8781 | 806 | 9.178909% |
| D | 8781 | 349 | 3.974490% |
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 | 8916 | 8782 | 1398 | 1398 | 15.68% | 15.92% |  |
| B | 8916 | 8782 | 352 | 352 | 3.95% | 4.01% |  |
| C | 8916 | 8783 | 350 | 350 | 3.93% | 3.98% |  |
| D | 8916 | 8784 | 31 | 31 | 0.35% | 0.35% |  |
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 | 234 | 4820728 | 23324.64 | 1000 | 976 | 206.6 |
| A | 0 | 199 | 285738 | 1378.07 | 1000 | 976 | 206.6 |
| A | 0 | 226 | 36784 | 173.29 | 1000 | 976 | 206.6 |
| B | 10 | 16 | 1710569 | 8226.91 | 1053 | 1027 | 207.8 |
| B | 15 | 204 | 620165 | 2979.51 | 1053 | 1027 | 207.8 |
| B | 14 | 167 | 86654 | 412.07 | 1053 | 1027 | 207.8 |
| C | 2 | 53 | 1841734 | 7609.96 | 1024 | 1026 | 241.9 |
| C | 10 | 65 | 20436 | 80.25 | 1024 | 1026 | 241.9 |
| C | 1 | 16 | 18071 | 70.47 | 1024 | 1026 | 241.9 |
| D | 2 | 32 | 86704 | 335.44 | 1049 | 1017 | 255.5 |
| D | 1 | 84 | 74143 | 286.26 | 1049 | 1017 | 255.5 |
| D | 14 | 34 | 50611 | 194.14 | 1049 | 1017 | 255.5 |
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 |  |