Observation information
- date-obs: 2016-04-27
- time-obs: 17:22:26.363200000
- date-end: 2016-04-27
- time-end: 21:50:28.339700000
- obs_id: G05_167T02_9000000432
- exposure: 9211.35183504
- sourceid: GRS1915+105
- observer: dipankar
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_167T02_9000000432_03149cztM0_level2.evt
| modeM0/AS1G05_167T02_9000000432_03149cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,085,198,400 | 172,584,000 |
| Size | 1.0 GB
| 164.6 MB
|
| Events in quadrant A | 6,599,698 | 1,082,885 |
| Events in quadrant B | 7,236,047 | 1,078,452 |
| Events in quadrant C | 9,101,659 | 1,059,655 |
| Events in quadrant D | 8,960,576 | 1,017,688 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29511 | 4 |
| B | 0 | 31055 | 3 |
| C | 0 | 36577 | 3 |
| D | 0 | 36548 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 292 | 0 |
| B | 0 | 292 | 0 |
| C | 0 | 292 | 0 |
| D | 0 | 292 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 14312 | 116 | 0.810509% |
| B | 14312 | 218 | 1.523197% |
| C | 14312 | 563 | 3.933762% |
| D | 14312 | 511 | 3.570430% |
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 | 16082 | 14314 | 7 | 7 | 0.04% | 0.05% |  |
| B | 16082 | 14315 | 56 | 56 | 0.35% | 0.39% |  |
| C | 16082 | 14314 | 366 | 366 | 2.28% | 2.56% |  |
| D | 16082 | 14315 | 354 | 354 | 2.20% | 2.47% |  |
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 | 14 | 249 | 81459 | 233.31 | 1662 | 1624 | 342.2 |
| A | 12 | 247 | 34236 | 95.3 | 1662 | 1624 | 342.2 |
| A | 13 | 164 | 30667 | 84.87 | 1662 | 1624 | 342.2 |
| B | 4 | 81 | 361249 | 1104.96 | 1682 | 1646 | 325.4 |
| B | 5 | 70 | 130849 | 397.0 | 1682 | 1646 | 325.4 |
| B | 3 | 0 | 78117 | 234.97 | 1682 | 1646 | 325.4 |
| C | 14 | 223 | 1969518 | 5304.97 | 1590 | 1601 | 371.0 |
| C | 1 | 192 | 605394 | 1627.66 | 1590 | 1601 | 371.0 |
| C | 6 | 80 | 100219 | 265.85 | 1590 | 1601 | 371.0 |
| D | 12 | 233 | 1292195 | 3365.11 | 1584 | 1532 | 383.5 |
| D | 2 | 136 | 417258 | 1083.91 | 1584 | 1532 | 383.5 |
| D | 5 | 233 | 364233 | 945.66 | 1584 | 1532 | 383.5 |
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 |  |