Observation information
- date-obs: 2018-07-14
- time-obs: 07:56:45.297600000
- date-end: 2018-07-14
- time-end: 10:27:12.299100000
- obs_id: G08_028T01_9000002220
- exposure: 4653.50069392
- 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/AS1G08_028T01_9000002220_15101cztM0_level2.evt
| modeM0/AS1G08_028T01_9000002220_15101cztM0_level2_quad_clean.evt
|
| Size (bytes) | 622,860,480 | 100,411,200 |
| Size | 594.0 MB
| 95.8 MB
|
| Events in quadrant A | 4,277,000 | 618,435 |
| Events in quadrant B | 4,926,214 | 627,816 |
| Events in quadrant C | 4,825,083 | 606,699 |
| Events in quadrant D | 4,249,373 | 588,283 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18361 | 4 |
| B | 0 | 19833 | 3 |
| C | 0 | 19198 | 3 |
| D | 0 | 18842 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 176 | 0 |
| B | 0 | 176 | 0 |
| C | 0 | 176 | 0 |
| D | 0 | 176 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8632 | 436 | 5.050973% |
| B | 8632 | 511 | 5.919833% |
| C | 8632 | 402 | 4.657090% |
| D | 8632 | 382 | 4.425394% |
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 | 9028 | 8633 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9028 | 8633 | 7 | 7 | 0.08% | 0.08% |  |
| C | 9028 | 8632 | 16 | 16 | 0.18% | 0.19% |  |
| D | 9028 | 8633 | 35 | 35 | 0.39% | 0.41% |  |
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 | 12 | 189 | 26075 | 110.68 | 1106 | 1081 | 225.8 |
| A | 0 | 226 | 9509 | 37.32 | 1106 | 1081 | 225.8 |
| A | 3 | 137 | 8247 | 31.73 | 1106 | 1081 | 225.8 |
| B | 10 | 245 | 399128 | 1835.74 | 1093 | 1064 | 216.8 |
| B | 3 | 64 | 239134 | 1097.9 | 1093 | 1064 | 216.8 |
| B | 12 | 111 | 27786 | 123.23 | 1093 | 1064 | 216.8 |
| C | 3 | 233 | 424738 | 1675.11 | 1069 | 1075 | 252.9 |
| C | 3 | 9 | 162208 | 637.1 | 1069 | 1075 | 252.9 |
| C | 4 | 254 | 51444 | 199.15 | 1069 | 1075 | 252.9 |
| D | 10 | 70 | 171743 | 649.66 | 1070 | 1037 | 262.8 |
| D | 13 | 104 | 41475 | 153.9 | 1070 | 1037 | 262.8 |
| D | 2 | 234 | 35070 | 129.52 | 1070 | 1037 | 262.8 |
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 |  |