Observation information
- date-obs: 2017-06-05
- time-obs: 21:04:25.139200000
- date-end: 2017-06-05
- time-end: 23:31:20.135400000
- obs_id: G07_028T01_9000001272
- exposure: 4371.5342557
- 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_9000001272_09130cztM0_level2.evt
| modeM0/AS1G07_028T01_9000001272_09130cztM0_level2_quad_clean.evt
|
| Size (bytes) | 540,218,880 | 91,889,280 |
| Size | 515.2 MB
| 87.6 MB
|
| Events in quadrant A | 4,676,536 | 584,206 |
| Events in quadrant B | 3,260,069 | 599,972 |
| Events in quadrant C | 4,326,017 | 576,784 |
| Events in quadrant D | 3,647,495 | 558,241 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18481 | 22 |
| B | 0 | 14028 | 10 |
| C | 0 | 17159 | 19 |
| D | 0 | 15611 | 46 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6644 | 194 | 2.919928% |
| B | 6646 | 63 | 0.947939% |
| C | 6644 | 91 | 1.369657% |
| D | 6641 | 189 | 2.845957% |
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 | 8815 | 6648 | 72 | 72 | 0.82% | 1.08% |  |
| B | 8815 | 6650 | 0 | 0 | 0.00% | 0.00% |  |
| C | 8815 | 6651 | 106 | 106 | 1.20% | 1.59% |  |
| D | 8815 | 6648 | 146 | 146 | 1.66% | 2.20% |  |
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 | 1423750 | 8708.25 | 806 | 789 | 163.4 |
| A | 1 | 162 | 72131 | 436.6 | 806 | 789 | 163.4 |
| A | 15 | 223 | 26840 | 159.43 | 806 | 789 | 163.4 |
| B | 0 | 214 | 60468 | 381.22 | 821 | 801 | 156.5 |
| B | 12 | 111 | 17784 | 108.51 | 821 | 801 | 156.5 |
| B | 11 | 111 | 14183 | 85.5 | 821 | 801 | 156.5 |
| C | 9 | 68 | 1185026 | 6413.63 | 793 | 797 | 184.6 |
| C | 14 | 234 | 49441 | 263.45 | 793 | 797 | 184.6 |
| C | 13 | 61 | 5958 | 27.95 | 793 | 797 | 184.6 |
| D | 1 | 52 | 479863 | 2483.54 | 782 | 762 | 192.9 |
| D | 2 | 14 | 139890 | 721.2 | 782 | 762 | 192.9 |
| D | 5 | 97 | 33293 | 168.63 | 782 | 762 | 192.9 |
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 |  |