Observation information
- date-obs: 2017-09-11
- time-obs: 13:38:55.882700000
- date-end: 2017-09-11
- time-end: 14:29:22.876900000
- obs_id: G07_046T01_9000001534
- exposure: 1595.76849893
- 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_9000001534_10574cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001534_10574cztM0_level2_quad_clean.evt
|
| Size (bytes) | 193,328,640 | 31,979,520 |
| Size | 184.4 MB
| 30.5 MB
|
| Events in quadrant A | 1,163,340 | 211,100 |
| Events in quadrant B | 2,013,845 | 187,920 |
| Events in quadrant C | 1,124,765 | 208,945 |
| Events in quadrant D | 1,398,699 | 197,962 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 46 | 0 |
| B | 0 | 46 | 0 |
| C | 0 | 46 | 0 |
| D | 0 | 46 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4728 | 2 |
| B | 0 | 7409 | 1 |
| C | 0 | 4687 | 1 |
| D | 0 | 5810 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2242 | 39 | 1.739518% |
| B | 2242 | 400 | 17.841213% |
| C | 2242 | 24 | 1.070473% |
| D | 2242 | 36 | 1.605709% |
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 | 3027 | 2243 | 0 | 0 | 0.00% | 0.00% |  |
| B | 3027 | 2243 | 262 | 262 | 8.66% | 11.68% |  |
| C | 3027 | 2243 | 3 | 3 | 0.10% | 0.13% |  |
| D | 3027 | 2243 | 0 | 0 | 0.00% | 0.00% |  |
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 | 27546 | 436.63 | 292 | 286 | 62.4 |
| A | 1 | 162 | 5582 | 84.83 | 292 | 286 | 62.4 |
| A | 0 | 226 | 2633 | 37.59 | 292 | 286 | 62.4 |
| B | 4 | 239 | 897794 | 16354.05 | 269 | 262 | 54.9 |
| B | 0 | 168 | 19100 | 343.25 | 269 | 262 | 54.9 |
| B | 0 | 214 | 16817 | 301.65 | 269 | 262 | 54.9 |
| C | 14 | 234 | 14139 | 202.6 | 283 | 284 | 68.4 |
| C | 4 | 175 | 5682 | 78.93 | 283 | 284 | 68.4 |
| C | 13 | 61 | 2127 | 26.95 | 283 | 284 | 68.4 |
| D | 2 | 16 | 161863 | 2300.33 | 283 | 275 | 70.2 |
| D | 8 | 195 | 125594 | 1784.01 | 283 | 275 | 70.2 |
| D | 1 | 52 | 13513 | 188.45 | 283 | 275 | 70.2 |
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 |  |