Observation information
- date-obs: 2018-05-22
- time-obs: 07:09:31.336700000
- date-end: 2018-05-22
- time-end: 09:16:33.331100000
- obs_id: G08_078T01_9000002110
- exposure: 3313.27185979
- sourceid: GRS 1915+105
- observer: ravibt
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_078T01_9000002110_14316cztM0_level2.evt
| modeM0/AS1G08_078T01_9000002110_14316cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,800,960 | 80,245,440 |
| Size | 468.1 MB
| 76.5 MB
|
| Events in quadrant A | 3,337,492 | 503,772 |
| Events in quadrant B | 3,484,620 | 506,129 |
| Events in quadrant C | 3,293,430 | 492,554 |
| Events in quadrant D | 4,311,604 | 478,490 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13590 | 2 |
| B | 0 | 14054 | 1 |
| C | 0 | 13401 | 1 |
| D | 0 | 16921 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6432 | 93 | 1.445896% |
| B | 6432 | 137 | 2.129975% |
| C | 6432 | 46 | 0.715174% |
| D | 6432 | 170 | 2.643035% |
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 | 7623 | 6434 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7623 | 6434 | 26 | 26 | 0.34% | 0.40% |  |
| C | 7623 | 6434 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7623 | 6434 | 102 | 102 | 1.34% | 1.59% |  |
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 | 46606 | 269.86 | 838 | 821 | 169.7 |
| A | 9 | 143 | 38260 | 220.67 | 838 | 821 | 169.7 |
| A | 8 | 15 | 26354 | 150.49 | 838 | 821 | 169.7 |
| B | 0 | 229 | 160167 | 1020.56 | 822 | 803 | 156.2 |
| B | 4 | 173 | 40374 | 253.41 | 822 | 803 | 156.2 |
| B | 0 | 189 | 28707 | 178.7 | 822 | 803 | 156.2 |
| C | 3 | 233 | 190343 | 1042.7 | 794 | 800 | 181.8 |
| C | 13 | 61 | 5531 | 26.03 | 794 | 800 | 181.8 |
| C | 10 | 22 | 3782 | 16.4 | 794 | 800 | 181.8 |
| D | 1 | 52 | 439202 | 2299.81 | 801 | 785 | 190.6 |
| D | 5 | 222 | 386308 | 2022.35 | 801 | 785 | 190.6 |
| D | 2 | 120 | 153370 | 800.42 | 801 | 785 | 190.6 |
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 |  |