Observation information
- date-obs: 2016-06-12
- time-obs: 04:42:31.142400000
- date-end: 2016-06-12
- time-end: 06:40:24.138600000
- obs_id: G05_189T01_9000000492
- exposure: 2943.41667423
- 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_03821cztM0_level2.evt
| modeM0/AS1G05_189T01_9000000492_03821cztM0_level2_quad_clean.evt
|
| Size (bytes) | 438,477,120 | 61,050,240 |
| Size | 418.2 MB
| 58.2 MB
|
| Events in quadrant A | 2,862,429 | 368,116 |
| Events in quadrant B | 3,989,024 | 368,613 |
| Events in quadrant C | 2,824,759 | 356,125 |
| Events in quadrant D | 3,206,090 | 347,190 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12142 | 2 |
| B | 0 | 15491 | 1 |
| C | 0 | 12217 | 1 |
| D | 0 | 13535 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5838 | 99 | 1.695786% |
| B | 5838 | 304 | 5.207263% |
| C | 5838 | 82 | 1.404591% |
| D | 5838 | 116 | 1.986982% |
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 | 7073 | 5838 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7073 | 5838 | 163 | 163 | 2.30% | 2.79% |  |
| C | 7073 | 5838 | 10 | 10 | 0.14% | 0.17% |  |
| D | 7073 | 5838 | 56 | 56 | 0.79% | 0.96% |  |
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 | 0 | 199 | 12178 | 76.96 | 731 | 717 | 148.9 |
| A | 13 | 251 | 10903 | 68.39 | 731 | 717 | 148.9 |
| A | 0 | 226 | 9445 | 58.6 | 731 | 717 | 148.9 |
| B | 14 | 167 | 1029868 | 7329.35 | 729 | 712 | 140.4 |
| B | 15 | 204 | 94321 | 666.66 | 729 | 712 | 140.4 |
| B | 0 | 173 | 23487 | 162.2 | 729 | 712 | 140.4 |
| C | 10 | 65 | 43214 | 260.85 | 696 | 701 | 163.0 |
| C | 8 | 128 | 19488 | 115.27 | 696 | 701 | 163.0 |
| C | 1 | 16 | 12800 | 74.24 | 696 | 701 | 163.0 |
| D | 5 | 239 | 151431 | 894.01 | 698 | 677 | 168.6 |
| D | 12 | 227 | 110105 | 648.93 | 698 | 677 | 168.6 |
| D | 13 | 223 | 89521 | 526.86 | 698 | 677 | 168.6 |
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 |  |