Observation information
- date-obs: 2016-07-20
- time-obs: 05:11:39.977500000
- date-end: 2016-07-20
- time-end: 07:27:48.974400000
- obs_id: G05_167T02_9000000546
- exposure: 2846.26137902
- 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_04384cztM0_level2.evt
| modeM0/AS1G05_167T02_9000000546_04384cztM0_level2_quad_clean.evt
|
| Size (bytes) | 436,783,680 | 58,858,560 |
| Size | 416.5 MB
| 56.1 MB
|
| Events in quadrant A | 3,133,655 | 336,602 |
| Events in quadrant B | 3,120,626 | 345,579 |
| Events in quadrant C | 3,296,090 | 335,129 |
| Events in quadrant D | 3,243,747 | 319,157 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13341 | 3 |
| B | 0 | 13201 | 2 |
| C | 0 | 13963 | 2 |
| D | 0 | 13983 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6381 | 39 | 0.611189% |
| B | 6381 | 38 | 0.595518% |
| C | 6381 | 79 | 1.238050% |
| D | 6381 | 87 | 1.363423% |
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 | 7626 | 6382 | 8 | 8 | 0.10% | 0.13% |  |
| B | 7626 | 6382 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7626 | 6382 | 64 | 64 | 0.84% | 1.00% |  |
| D | 7626 | 6382 | 91 | 91 | 1.19% | 1.43% |  |
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 | 42978 | 265.03 | 787 | 772 | 159.3 |
| A | 7 | 16 | 39041 | 240.31 | 787 | 772 | 159.3 |
| A | 13 | 14 | 13560 | 80.3 | 787 | 772 | 159.3 |
| B | 14 | 167 | 28378 | 181.69 | 798 | 781 | 151.9 |
| B | 12 | 111 | 14566 | 90.76 | 798 | 781 | 151.9 |
| B | 5 | 200 | 13919 | 86.5 | 798 | 781 | 151.9 |
| C | 9 | 247 | 296299 | 1671.47 | 756 | 763 | 176.8 |
| C | 14 | 48 | 17597 | 95.21 | 756 | 763 | 176.8 |
| C | 7 | 206 | 17163 | 92.75 | 756 | 763 | 176.8 |
| D | 2 | 37 | 238546 | 1324.76 | 747 | 726 | 179.5 |
| D | 13 | 112 | 66707 | 367.54 | 747 | 726 | 179.5 |
| D | 13 | 239 | 62102 | 341.89 | 747 | 726 | 179.5 |
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 |  |