Observation information
- date-obs: 2017-07-27
- time-obs: 10:09:26.918800000
- date-end: 2017-07-27
- time-end: 12:41:37.924700000
- obs_id: G07_028T01_9000001406
- exposure: 8372.69508508
- 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_9000001406cztM0_level2.evt
| modeM0/AS1G07_028T01_9000001406cztM0_level2_quad_clean.evt
|
Size (bytes) | 866,787,840 | 163,782,720 |
Size | 826.6 MB
| 156.2 MB
|
Events in quadrant A | 6,306,078 | 1,015,936 |
Events in quadrant B | 6,407,721 | 1,035,945 |
Events in quadrant C | 6,126,653 | 1,007,485 |
Events in quadrant D | 6,490,791 | 963,894 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27819 | 0 |
B | 0 | 27993 | 0 |
C | 0 | 27686 | 0 |
D | 0 | 28730 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 276 | 0 |
B | 0 | 276 | 0 |
C | 0 | 276 | 0 |
D | 0 | 276 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 10 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 13566 | 180 | 1.326847% |
B | 13566 | 180 | 1.326847% |
C | 13566 | 125 | 0.921421% |
D | 13566 | 136 | 1.002506% |
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 | 14626 | 13568 | 4 | 4 | 0.03% | 0.03% |  |
B | 14626 | 13568 | 10 | 10 | 0.07% | 0.07% |  |
C | 14626 | 13568 | 21 | 21 | 0.14% | 0.15% |  |
D | 14626 | 13568 | 19 | 19 | 0.13% | 0.14% |  |
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 | 13 | 251 | 77977 | 234.13 | 1595 | 1557 | 326.4 |
A | 15 | 239 | 53966 | 160.57 | 1595 | 1557 | 326.4 |
A | 14 | 111 | 40617 | 119.67 | 1595 | 1557 | 326.4 |
B | 4 | 81 | 132569 | 424.14 | 1596 | 1553 | 308.9 |
B | 0 | 229 | 48324 | 151.41 | 1596 | 1553 | 308.9 |
B | 12 | 111 | 37130 | 115.18 | 1596 | 1553 | 308.9 |
C | 10 | 22 | 54993 | 148.03 | 1553 | 1561 | 360.9 |
C | 9 | 221 | 13047 | 31.82 | 1553 | 1561 | 360.9 |
C | 13 | 61 | 11538 | 27.64 | 1553 | 1561 | 360.9 |
D | 1 | 52 | 226006 | 565.09 | 1530 | 1498 | 397.3 |
D | 10 | 253 | 151583 | 377.77 | 1530 | 1498 | 397.3 |
D | 8 | 195 | 100183 | 248.39 | 1530 | 1498 | 397.3 |
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 |  |