Observation information
- date-obs: 2019-05-15
- time-obs: 02:04:50.331800000
- date-end: 2019-05-16
- time-end: 07:14:38.269900000
- obs_id: T03_116T01_9000002916
- exposure: 52843.4234906
- sourceid: GRS 1915+105
- observer: bari
- ra_pnt: 288.7981
- dec_pnt: 10.94577
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T03_116T01_9000002916cztM0_level2_bc.evt
| modeM0/AS1T03_116T01_9000002916cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,626,853,120 | 1,162,488,960 |
Size | 3.4 GB
| 1.1 GB
|
Events in quadrant A | 19,374,552 | 7,456,131 |
Events in quadrant B | 20,283,036 | 7,549,038 |
Events in quadrant C | 19,852,103 | 7,185,368 |
Events in quadrant D | 44,199,336 | 6,848,060 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1828 | 0 |
B | 0 | 1828 | 0 |
C | 0 | 1828 | 0 |
D | 0 | 1828 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 187359 | 0 |
B | 0 | 191013 | 0 |
C | 0 | 192256 | 0 |
D | 0 | 280828 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 151 | 0 |
B | 0 | 151 | 0 |
C | 0 | 151 | 0 |
D | 0 | 151 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 90048 | 1006 | 1.117182% |
B | 90048 | 1391 | 1.544732% |
C | 90048 | 1635 | 1.815698% |
D | 90048 | 7372 | 8.186745% |
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 | 104907 | 90041 | 2 | 2 | 0.00% | 0.00% |  |
B | 104907 | 90041 | 23 | 23 | 0.02% | 0.03% |  |
C | 104907 | 90042 | 3 | 3 | 0.00% | 0.00% |  |
D | 104907 | 90039 | 912 | 912 | 0.87% | 1.01% |  |
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 | 47 | 208906 | 191.87 | 4905 | 4816 | 1063.7 |
A | 9 | 143 | 126217 | 114.13 | 4905 | 4816 | 1063.7 |
A | 11 | 29 | 95365 | 85.13 | 4905 | 4816 | 1063.7 |
B | 7 | 220 | 422919 | 451.28 | 4930 | 4806 | 926.5 |
B | 3 | 64 | 194995 | 205.27 | 4930 | 4806 | 926.5 |
B | 4 | 216 | 179227 | 188.26 | 4930 | 4806 | 926.5 |
C | 3 | 233 | 1493849 | 1361.65 | 4677 | 4666 | 1093.7 |
C | 9 | 15 | 171970 | 152.98 | 4677 | 4666 | 1093.7 |
C | 10 | 223 | 116445 | 102.21 | 4677 | 4666 | 1093.7 |
D | 7 | 238 | 11625160 | 10786.53 | 4649 | 4490 | 1077.3 |
D | 1 | 52 | 9465080 | 8781.5 | 4649 | 4490 | 1077.3 |
D | 12 | 218 | 3880852 | 3598.11 | 4649 | 4490 | 1077.3 |
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 |  |