Observation information
- date-obs: 2018-06-26
- time-obs: 00:00:01.842100000
- date-end: 2018-06-26
- time-end: 07:35:22.784100000
- obs_id: G08_028T01_9000002190
- exposure: 12417.0584955
- sourceid: GRS 1915+105
- observer: jsyadav
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G08_028T01_9000002190cztM0_level2_bc.evt
| modeM0/AS1G08_028T01_9000002190cztM0_level2_quad_clean.evt
|
Size (bytes) | 746,798,400 | 277,372,800 |
Size | 712.2 MB
| 264.5 MB
|
Events in quadrant A | 5,181,568 | 1,725,585 |
Events in quadrant B | 5,221,640 | 1,725,903 |
Events in quadrant C | 5,548,171 | 1,669,289 |
Events in quadrant D | 5,034,144 | 1,639,624 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 36 | 0 |
B | 0 | 36 | 0 |
C | 0 | 36 | 0 |
D | 0 | 36 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 49372 | 0 |
B | 0 | 50156 | 0 |
C | 0 | 49661 | 0 |
D | 0 | 49240 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 482 | 0 |
B | 0 | 482 | 0 |
C | 0 | 482 | 0 |
D | 0 | 482 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 23852 | 160 | 0.670803% |
B | 23852 | 251 | 1.052323% |
C | 23852 | 107 | 0.448600% |
D | 23852 | 138 | 0.578568% |
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 | 27323 | 23853 | 0 | 0 | 0.00% | 0.00% |  |
B | 27323 | 23854 | 6 | 6 | 0.02% | 0.03% |  |
C | 27323 | 23853 | 0 | 0 | 0.00% | 0.00% |  |
D | 27323 | 23853 | 10 | 10 | 0.04% | 0.04% |  |
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 | 12 | 189 | 349101 | 1265.17 | 1244 | 1218 | 275.0 |
A | 9 | 143 | 24091 | 83.18 | 1244 | 1218 | 275.0 |
A | 4 | 2 | 23701 | 81.77 | 1244 | 1218 | 275.0 |
B | 3 | 64 | 221225 | 913.89 | 1245 | 1213 | 240.7 |
B | 0 | 219 | 89922 | 368.48 | 1245 | 1213 | 240.7 |
B | 0 | 189 | 46015 | 186.1 | 1245 | 1213 | 240.7 |
C | 3 | 233 | 833853 | 3136.66 | 1198 | 1179 | 265.5 |
C | 6 | 96 | 23813 | 85.26 | 1198 | 1179 | 265.5 |
C | 14 | 234 | 8023 | 25.78 | 1198 | 1179 | 265.5 |
D | 13 | 104 | 212711 | 754.57 | 1216 | 1173 | 280.3 |
D | 2 | 234 | 82860 | 291.38 | 1216 | 1173 | 280.3 |
D | 13 | 249 | 70380 | 246.87 | 1216 | 1173 | 280.3 |
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 |  |