Observation information
- date-obs: 2016-04-26
- time-obs: 03:57:56.412600000
- date-end: 2016-04-26
- time-end: 05:49:06.405700000
- obs_id: G05_214T01_9000000428
- exposure: 3149.46115134
- sourceid: GRS 1915+105
- observer: jsyadav
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_214T01_9000000428_03125cztM0_level2.evt
| modeM0/AS1G05_214T01_9000000428_03125cztM0_level2_quad_clean.evt
|
| Size (bytes) | 387,244,800 | 67,832,640 |
| Size | 369.3 MB
| 64.7 MB
|
| Events in quadrant A | 2,742,585 | 424,232 |
| Events in quadrant B | 2,754,423 | 431,202 |
| Events in quadrant C | 2,975,505 | 418,054 |
| Events in quadrant D | 2,884,785 | 399,401 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11674 | 0 |
| B | 0 | 11677 | 0 |
| C | 0 | 12438 | 0 |
| D | 0 | 12422 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 112 | 0 |
| B | 0 | 112 | 0 |
| C | 0 | 112 | 0 |
| D | 0 | 112 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5440 | 64 | 1.176471% |
| B | 5440 | 65 | 1.194853% |
| C | 5440 | 65 | 1.194853% |
| D | 5440 | 69 | 1.268382% |
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 | 6670 | 5441 | 12 | 12 | 0.18% | 0.22% |  |
| B | 6670 | 5441 | 3 | 3 | 0.04% | 0.06% |  |
| C | 6670 | 5440 | 26 | 26 | 0.39% | 0.48% |  |
| D | 6670 | 5441 | 43 | 43 | 0.64% | 0.79% |  |
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 | 13 | 146458 | 1083.77 | 655 | 642 | 134.5 |
| A | 12 | 247 | 49163 | 360.63 | 655 | 642 | 134.5 |
| A | 3 | 1 | 13049 | 92.21 | 655 | 642 | 134.5 |
| B | 14 | 167 | 54521 | 422.31 | 660 | 646 | 127.6 |
| B | 4 | 81 | 39605 | 305.39 | 660 | 646 | 127.6 |
| B | 2 | 249 | 16235 | 122.2 | 660 | 646 | 127.6 |
| C | 1 | 192 | 159524 | 1093.82 | 624 | 628 | 145.3 |
| C | 0 | 219 | 157924 | 1082.8 | 624 | 628 | 145.3 |
| C | 14 | 223 | 101704 | 695.79 | 624 | 628 | 145.3 |
| D | 13 | 120 | 388935 | 2366.68 | 623 | 610 | 164.1 |
| D | 13 | 223 | 57670 | 347.76 | 623 | 610 | 164.1 |
| D | 2 | 136 | 27183 | 161.95 | 623 | 610 | 164.1 |
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 |  |