Observation information
- date-obs: 2019-03-23
- time-obs: 12:58:10.648900000
- date-end: 2019-03-23
- time-end: 15:13:34.649900000
- obs_id: A05_173T01_9000002812
- exposure: 3516.49193656
- sourceid: GRS 1915+105
- observer: rawatdivya
- ra_pnt: 288.7991
- dec_pnt: 10.94602
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_173T01_9000002812_18834cztM0_level2.evt
| modeM0/AS1A05_173T01_9000002812_18834cztM0_level2_quad_clean.evt
|
| Size (bytes) | 550,134,720 | 80,971,200 |
| Size | 524.6 MB
| 77.2 MB
|
| Events in quadrant A | 3,576,795 | 503,055 |
| Events in quadrant B | 3,737,461 | 509,916 |
| Events in quadrant C | 3,587,652 | 485,690 |
| Events in quadrant D | 5,272,208 | 453,499 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14914 | 2 |
| B | 0 | 15292 | 2 |
| C | 0 | 14925 | 2 |
| D | 0 | 20305 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7171 | 110 | 1.533956% |
| B | 7171 | 116 | 1.617627% |
| C | 7171 | 125 | 1.743132% |
| D | 7171 | 466 | 6.498396% |
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 | 7881 | 7172 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7881 | 7172 | 5 | 5 | 0.06% | 0.07% |  |
| C | 7881 | 7172 | 5 | 5 | 0.06% | 0.07% |  |
| D | 7881 | 7172 | 324 | 324 | 4.11% | 4.52% |  |
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 | 174 | 17160 | 86.63 | 918 | 899 | 187.7 |
| A | 13 | 254 | 10913 | 53.35 | 918 | 899 | 187.7 |
| A | 14 | 4 | 10111 | 49.08 | 918 | 899 | 187.7 |
| B | 4 | 216 | 40903 | 227.43 | 910 | 888 | 175.9 |
| B | 0 | 229 | 38556 | 214.09 | 910 | 888 | 175.9 |
| B | 7 | 220 | 25729 | 141.19 | 910 | 888 | 175.9 |
| C | 14 | 238 | 134524 | 654.76 | 871 | 878 | 204.1 |
| C | 0 | 207 | 43915 | 210.85 | 871 | 878 | 204.1 |
| C | 5 | 112 | 7339 | 31.65 | 871 | 878 | 204.1 |
| D | 7 | 238 | 1709252 | 7983.84 | 872 | 845 | 214.0 |
| D | 1 | 52 | 130852 | 607.56 | 872 | 845 | 214.0 |
| D | 7 | 38 | 89983 | 416.57 | 872 | 845 | 214.0 |
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 |  |