Observation information
- date-obs: 2019-03-23
- time-obs: 23:33:18.650900000
- date-end: 2019-03-24
- time-end: 01:04:50.649400000
- obs_id: A05_173T01_9000002812
- exposure: 3562.16633299
- 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_18840cztM0_level2.evt
| modeM0/AS1A05_173T01_9000002812_18840cztM0_level2_quad_clean.evt
|
| Size (bytes) | 364,916,160 | 71,095,680 |
| Size | 348.0 MB
| 67.8 MB
|
| Events in quadrant A | 2,455,962 | 454,548 |
| Events in quadrant B | 2,940,412 | 459,615 |
| Events in quadrant C | 2,478,617 | 445,058 |
| Events in quadrant D | 2,822,138 | 428,887 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 106 | 0 |
| B | 0 | 106 | 0 |
| C | 0 | 106 | 0 |
| D | 0 | 106 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10707 | 0 |
| B | 0 | 12189 | 0 |
| C | 0 | 10767 | 0 |
| D | 0 | 11999 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5206 | 11 | 0.211295% |
| B | 5206 | 120 | 2.305033% |
| C | 5206 | 44 | 0.845179% |
| D | 5206 | 28 | 0.537841% |
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 | 5206 | 5206 | 2 | 2 | 0.04% | 0.04% |  |
| B | 5206 | 5206 | 23 | 23 | 0.44% | 0.44% |  |
| C | 5206 | 5206 | 2 | 2 | 0.04% | 0.04% |  |
| D | 5206 | 5206 | 9 | 9 | 0.17% | 0.17% |  |
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 | 144 | 21083 | 161.28 | 622 | 609 | 126.9 |
| A | 9 | 143 | 20759 | 158.73 | 622 | 609 | 126.9 |
| A | 15 | 174 | 9706 | 71.66 | 622 | 609 | 126.9 |
| B | 10 | 245 | 366862 | 3006.67 | 620 | 604 | 121.8 |
| B | 0 | 229 | 71248 | 579.93 | 620 | 604 | 121.8 |
| B | 6 | 36 | 15279 | 120.47 | 620 | 604 | 121.8 |
| C | 14 | 238 | 91630 | 646.71 | 596 | 601 | 140.8 |
| C | 0 | 207 | 35724 | 249.53 | 596 | 601 | 140.8 |
| C | 3 | 233 | 23026 | 159.32 | 596 | 601 | 140.8 |
| D | 9 | 68 | 196490 | 1326.31 | 600 | 582 | 147.7 |
| D | 1 | 52 | 159321 | 1074.68 | 600 | 582 | 147.7 |
| D | 1 | 20 | 52490 | 351.42 | 600 | 582 | 147.7 |
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 |  |