Observation information
- date-obs: 2017-04-15
- time-obs: 19:53:08.434400000
- date-end: 2017-04-16
- time-end: 01:19:24.422900000
- obs_id: G07_028T01_9000001166
- exposure: 12192.503433
- sourceid: GRS 1915+105
- observer: santoshv
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G07_028T01_9000001166cztM0_level2.evt
| modeM0/AS1G07_028T01_9000001166cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,172,482,560 | 236,520,000 |
Size | 1.1 GB
| 225.6 MB
|
Events in quadrant A | 7,790,151 | 1,522,940 |
Events in quadrant B | 10,126,194 | 1,479,245 |
Events in quadrant C | 7,723,648 | 1,525,805 |
Events in quadrant D | 8,707,011 | 1,452,047 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 34904 | 0 |
B | 0 | 41695 | 0 |
C | 0 | 34922 | 0 |
D | 0 | 37911 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24 | 0 |
B | 0 | 24 | 0 |
C | 0 | 24 | 0 |
D | 0 | 24 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 350 | 0 |
B | 0 | 350 | 0 |
C | 0 | 350 | 0 |
D | 0 | 350 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 17168 | 52 | 0.302889% |
B | 17167 | 722 | 4.205744% |
C | 17169 | 40 | 0.232978% |
D | 17168 | 216 | 1.258155% |
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 | 19577 | 17175 | 0 | 0 | 0.00% | 0.00% |  |
B | 19577 | 17175 | 538 | 538 | 2.75% | 3.13% |  |
C | 19577 | 17175 | 5 | 5 | 0.03% | 0.03% |  |
D | 19577 | 17175 | 143 | 143 | 0.73% | 0.83% |  |
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 | 0 | 226 | 18794 | 41.07 | 2017 | 1977 | 409.5 |
A | 12 | 194 | 17805 | 38.66 | 2017 | 1977 | 409.5 |
A | 15 | 236 | 11353 | 22.9 | 2017 | 1977 | 409.5 |
B | 10 | 16 | 1733243 | 4573.19 | 1983 | 1937 | 378.6 |
B | 0 | 214 | 253866 | 665.46 | 1983 | 1937 | 378.6 |
B | 4 | 81 | 241589 | 633.03 | 1983 | 1937 | 378.6 |
C | 1 | 16 | 82515 | 177.9 | 1958 | 1969 | 452.8 |
C | 13 | 61 | 14937 | 28.64 | 1958 | 1969 | 452.8 |
C | 8 | 208 | 7146 | 11.43 | 1958 | 1969 | 452.8 |
D | 11 | 144 | 459917 | 891.56 | 1931 | 1896 | 513.7 |
D | 8 | 195 | 206795 | 398.85 | 1931 | 1896 | 513.7 |
D | 13 | 169 | 147172 | 282.79 | 1931 | 1896 | 513.7 |
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 |  |