Observation information
- date-obs: 2017-10-15
- time-obs: 10:07:01.421900000
- date-end: 2017-10-15
- time-end: 20:25:11.420900000
- obs_id: G08_028T01_9000001618
- exposure: 21173.6075497
- 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_9000001618cztM0_level2.evt
| modeM0/AS1G08_028T01_9000001618cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,671,021,440 | 419,345,280 |
Size | 2.5 GB
| 399.9 MB
|
Events in quadrant A | 18,536,622 | 2,631,090 |
Events in quadrant B | 21,585,632 | 2,623,911 |
Events in quadrant C | 15,706,727 | 2,613,160 |
Events in quadrant D | 22,724,390 | 2,449,995 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 706 | 0 |
B | 0 | 706 | 0 |
C | 0 | 706 | 0 |
D | 0 | 706 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23 | 0 |
B | 0 | 23 | 0 |
C | 0 | 23 | 0 |
D | 0 | 23 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 77635 | 0 |
B | 0 | 87037 | 0 |
C | 0 | 71249 | 0 |
D | 0 | 90712 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 34676 | 567 | 1.635137% |
B | 34676 | 1579 | 4.553582% |
C | 34676 | 156 | 0.449879% |
D | 34676 | 1617 | 4.663168% |
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 | 37091 | 34682 | 35 | 35 | 0.09% | 0.10% |  |
B | 37091 | 34682 | 617 | 617 | 1.66% | 1.78% |  |
C | 37091 | 34682 | 1 | 1 | 0.00% | 0.00% |  |
D | 37091 | 34682 | 1343 | 1343 | 3.62% | 3.87% |  |
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 | 15 | 2434680 | 2881.2 | 4146 | 4055 | 843.6 |
A | 11 | 29 | 81737 | 92.08 | 4146 | 4055 | 843.6 |
A | 0 | 226 | 37841 | 40.05 | 4146 | 4055 | 843.6 |
B | 4 | 239 | 4475509 | 5710.14 | 4112 | 4003 | 783.1 |
B | 15 | 204 | 362773 | 458.15 | 4112 | 4003 | 783.1 |
B | 0 | 219 | 191037 | 238.84 | 4112 | 4003 | 783.1 |
C | 13 | 61 | 29616 | 27.5 | 4012 | 4039 | 930.2 |
C | 8 | 128 | 24630 | 22.14 | 4012 | 4039 | 930.2 |
C | 14 | 234 | 17416 | 14.38 | 4012 | 4039 | 930.2 |
D | 10 | 253 | 3209874 | 3389.92 | 3931 | 3819 | 945.8 |
D | 1 | 52 | 2317622 | 2446.5 | 3931 | 3819 | 945.8 |
D | 8 | 195 | 875154 | 921.3 | 3931 | 3819 | 945.8 |
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 |  |