Observation information
- date-obs: 2017-07-27
- time-obs: 09:21:40.844300000
- date-end: 2017-07-27
- time-end: 10:32:44.920200000
- obs_id: G07_028T01_9000001406
- exposure: 2117.8496988
- sourceid: GRS 1915+105
- observer: santoshv
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_028T01_9000001406_09891cztM0_level2.evt
| modeM0/AS1G07_028T01_9000001406_09891cztM0_level2_quad_clean.evt
|
| Size (bytes) | 270,694,080 | 44,239,680 |
| Size | 258.2 MB
| 42.2 MB
|
| Events in quadrant A | 2,010,494 | 262,166 |
| Events in quadrant B | 1,975,672 | 269,538 |
| Events in quadrant C | 1,947,238 | 264,639 |
| Events in quadrant D | 1,984,631 | 254,565 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8726 | 63 |
| B | 0 | 8617 | 50 |
| C | 0 | 8678 | 61 |
| D | 0 | 8864 | 61 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 84 | 2 |
| B | 0 | 84 | 0 |
| C | 0 | 84 | 0 |
| D | 0 | 84 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4089 | 212 | 5.184642% |
| B | 4095 | 213 | 5.201465% |
| C | 4090 | 175 | 4.278729% |
| D | 4091 | 167 | 4.082132% |
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 | 4264 | 4121 | 0 | 0 | 0.00% | 0.00% |  |
| B | 4264 | 4120 | 0 | 0 | 0.00% | 0.00% |  |
| C | 4264 | 4119 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4264 | 4121 | 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 | 15 | 239 | 55498 | 523.27 | 502 | 490 | 105.1 |
| A | 13 | 251 | 21698 | 201.74 | 502 | 490 | 105.1 |
| A | 0 | 226 | 4514 | 38.28 | 502 | 490 | 105.1 |
| B | 12 | 111 | 12350 | 117.77 | 505 | 493 | 100.7 |
| B | 11 | 111 | 10349 | 97.9 | 505 | 493 | 100.7 |
| B | 14 | 111 | 8455 | 79.08 | 505 | 493 | 100.7 |
| C | 9 | 221 | 11318 | 91.85 | 493 | 495 | 117.8 |
| C | 10 | 22 | 5513 | 42.58 | 493 | 495 | 117.8 |
| C | 13 | 61 | 3705 | 27.24 | 493 | 495 | 117.8 |
| D | 9 | 85 | 40539 | 313.83 | 486 | 475 | 127.7 |
| D | 10 | 172 | 29503 | 227.38 | 486 | 475 | 127.7 |
| D | 2 | 16 | 21227 | 162.56 | 486 | 475 | 127.7 |
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 |  |