Observation information
- date-obs: 2019-05-15
- time-obs: 05:44:08.303000000
- date-end: 2019-05-15
- time-end: 07:43:47.300300000
- obs_id: T03_116T01_9000002916
- exposure: 3385.28831682
- sourceid: GRS 1915+105
- observer: bari
- ra_pnt: 288.7981
- dec_pnt: 10.94577
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_116T01_9000002916_19614cztM0_level2.evt
| modeM0/AS1T03_116T01_9000002916_19614cztM0_level2_quad_clean.evt
|
| Size (bytes) | 486,662,400 | 80,470,080 |
| Size | 464.1 MB
| 76.7 MB
|
| Events in quadrant A | 3,070,009 | 519,353 |
| Events in quadrant B | 3,190,406 | 526,922 |
| Events in quadrant C | 3,222,741 | 494,958 |
| Events in quadrant D | 4,849,041 | 476,978 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12549 | 1 |
| B | 0 | 12936 | 2 |
| C | 0 | 13139 | 1 |
| D | 0 | 18373 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5990 | 93 | 1.552588% |
| B | 5989 | 130 | 2.170646% |
| C | 5989 | 159 | 2.654867% |
| D | 5989 | 275 | 4.591752% |
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 | 7180 | 5991 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7179 | 5990 | 19 | 19 | 0.26% | 0.32% |  |
| C | 7179 | 5990 | 26 | 26 | 0.36% | 0.43% |  |
| D | 7179 | 5989 | 111 | 111 | 1.55% | 1.85% |  |
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 | 9 | 143 | 25188 | 154.25 | 786 | 773 | 158.3 |
| A | 5 | 16 | 8596 | 49.42 | 786 | 773 | 158.3 |
| A | 11 | 29 | 7357 | 41.6 | 786 | 773 | 158.3 |
| B | 7 | 220 | 72141 | 484.24 | 773 | 754 | 147.4 |
| B | 0 | 197 | 33178 | 219.94 | 773 | 754 | 147.4 |
| B | 10 | 247 | 23439 | 153.88 | 773 | 754 | 147.4 |
| C | 9 | 15 | 168633 | 976.43 | 736 | 742 | 171.9 |
| C | 14 | 238 | 117813 | 680.87 | 736 | 742 | 171.9 |
| C | 3 | 233 | 55348 | 317.58 | 736 | 742 | 171.9 |
| D | 7 | 238 | 1968208 | 10753.63 | 747 | 728 | 183.0 |
| D | 7 | 96 | 54692 | 294.95 | 747 | 728 | 183.0 |
| D | 2 | 234 | 21913 | 115.79 | 747 | 728 | 183.0 |
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 |  |