Observation information
- date-obs: 2017-06-06
- time-obs: 06:18:58.125300000
- date-end: 2017-06-06
- time-end: 08:17:39.123500000
- obs_id: G07_046T01_9000001274
- exposure: 3045.14530335
- 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/AS1G07_046T01_9000001274_09135cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001274_09135cztM0_level2_quad_clean.evt
|
| Size (bytes) | 421,309,440 | 67,743,360 |
| Size | 401.8 MB
| 64.6 MB
|
| Events in quadrant A | 3,547,682 | 407,437 |
| Events in quadrant B | 3,027,640 | 415,506 |
| Events in quadrant C | 2,809,768 | 403,419 |
| Events in quadrant D | 2,956,921 | 396,189 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14251 | 2 |
| B | 0 | 12711 | 1 |
| C | 0 | 12542 | 1 |
| D | 0 | 12908 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6141 | 108 | 1.758671% |
| B | 6141 | 88 | 1.432991% |
| C | 6141 | 42 | 0.683928% |
| D | 6141 | 54 | 0.879336% |
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 | 7121 | 6141 | 34 | 34 | 0.48% | 0.55% |  |
| B | 7121 | 6141 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7121 | 6142 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7121 | 6141 | 7 | 7 | 0.10% | 0.11% |  |
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 | 8 | 5 | 387363 | 2528.7 | 750 | 736 | 152.9 |
| A | 15 | 223 | 101227 | 657.25 | 750 | 736 | 152.9 |
| A | 1 | 162 | 71158 | 460.59 | 750 | 736 | 152.9 |
| B | 0 | 214 | 115081 | 789.12 | 749 | 731 | 144.9 |
| B | 12 | 111 | 16334 | 107.68 | 749 | 731 | 144.9 |
| B | 11 | 111 | 13223 | 86.21 | 749 | 731 | 144.9 |
| C | 14 | 234 | 7521 | 40.74 | 717 | 721 | 166.9 |
| C | 13 | 61 | 5468 | 28.44 | 717 | 721 | 166.9 |
| C | 14 | 67 | 4243 | 21.1 | 717 | 721 | 166.9 |
| D | 1 | 52 | 81043 | 449.92 | 723 | 703 | 178.6 |
| D | 2 | 14 | 43264 | 238.35 | 723 | 703 | 178.6 |
| D | 8 | 195 | 42087 | 231.76 | 723 | 703 | 178.6 |
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 |  |