Observation information
- date-obs: 2019-03-21
- time-obs: 19:14:36.668100000
- date-end: 2019-03-21
- time-end: 21:23:08.670100000
- obs_id: A05_173T01_9000002812
- exposure: 3964.8044512
- 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_18808cztM0_level2.evt
| modeM0/AS1A05_173T01_9000002812_18808cztM0_level2_quad_clean.evt
|
| Size (bytes) | 504,748,800 | 83,954,880 |
| Size | 481.4 MB
| 80.1 MB
|
| Events in quadrant A | 3,504,049 | 518,883 |
| Events in quadrant B | 3,857,859 | 519,210 |
| Events in quadrant C | 3,842,912 | 504,163 |
| Events in quadrant D | 3,587,397 | 493,431 |
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 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14983 | 1 |
| B | 0 | 15999 | 1 |
| C | 0 | 16030 | 1 |
| D | 0 | 15489 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7282 | 35 | 0.480637% |
| B | 7283 | 82 | 1.125910% |
| C | 7283 | 154 | 2.114513% |
| D | 7282 | 46 | 0.631695% |
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 | 7712 | 7283 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7713 | 7284 | 7 | 7 | 0.09% | 0.10% |  |
| C | 7713 | 7284 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7712 | 7283 | 15 | 15 | 0.19% | 0.21% |  |
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 | 11 | 29 | 14029 | 71.81 | 900 | 881 | 183.1 |
| A | 4 | 2 | 13147 | 66.99 | 900 | 881 | 183.1 |
| A | 13 | 254 | 12807 | 65.14 | 900 | 881 | 183.1 |
| B | 0 | 229 | 109619 | 630.39 | 896 | 874 | 172.5 |
| B | 12 | 18 | 52332 | 298.3 | 896 | 874 | 172.5 |
| B | 7 | 220 | 50270 | 286.35 | 896 | 874 | 172.5 |
| C | 3 | 233 | 320333 | 1569.75 | 860 | 865 | 203.5 |
| C | 14 | 238 | 132109 | 644.89 | 860 | 865 | 203.5 |
| C | 9 | 54 | 23918 | 113.27 | 860 | 865 | 203.5 |
| D | 7 | 38 | 103758 | 474.95 | 875 | 846 | 216.7 |
| D | 12 | 233 | 49332 | 223.77 | 875 | 846 | 216.7 |
| D | 7 | 238 | 48231 | 218.69 | 875 | 846 | 216.7 |
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 |  |