Observation information
- date-obs: 2018-04-03
- time-obs: 22:58:15.963600000
- date-end: 2018-04-04
- time-end: 01:11:48.957900000
- obs_id: G08_028T01_9000002006
- exposure: 4888.74104173
- 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_9000002006_13600cztM0_level2.evt
| modeM0/AS1G08_028T01_9000002006_13600cztM0_level2_quad_clean.evt
|
Size (bytes) | 548,242,560 | 99,947,520 |
Size | 522.8 MB
| 95.3 MB
|
Events in quadrant A | 3,227,059 | 656,359 |
Events in quadrant B | 4,120,100 | 652,138 |
Events in quadrant C | 3,356,460 | 652,623 |
Events in quadrant D | 5,443,147 | 596,145 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 13 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 138 | 0 |
B | 0 | 138 | 0 |
C | 0 | 138 | 0 |
D | 0 | 138 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13990 | 3 |
B | 0 | 16761 | 2 |
C | 0 | 14197 | 2 |
D | 0 | 20733 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6732 | 38 | 0.564468% |
B | 6732 | 258 | 3.832442% |
C | 6732 | 44 | 0.653595% |
D | 6732 | 566 | 8.407605% |
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 | 7643 | 6734 | 6 | 6 | 0.08% | 0.09% |  |
B | 7643 | 6734 | 81 | 81 | 1.06% | 1.20% |  |
C | 7643 | 6734 | 7 | 7 | 0.09% | 0.10% |  |
D | 7643 | 6734 | 319 | 319 | 4.17% | 4.74% |  |
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 | 15 | 69 | 34664 | 200.9 | 820 | 806 | 168.5 |
A | 1 | 162 | 19618 | 111.62 | 820 | 806 | 168.5 |
A | 15 | 157 | 12158 | 67.36 | 820 | 806 | 168.5 |
B | 0 | 219 | 502337 | 3188.51 | 815 | 794 | 157.3 |
B | 0 | 182 | 291100 | 1845.59 | 815 | 794 | 157.3 |
B | 3 | 64 | 47235 | 295.24 | 815 | 794 | 157.3 |
C | 3 | 233 | 219644 | 1176.51 | 797 | 804 | 186.0 |
C | 0 | 207 | 16932 | 86.71 | 797 | 804 | 186.0 |
C | 7 | 238 | 7292 | 34.88 | 797 | 804 | 186.0 |
D | 13 | 122 | 1886132 | 10140.53 | 768 | 748 | 185.9 |
D | 8 | 195 | 335254 | 1799.14 | 768 | 748 | 185.9 |
D | 5 | 222 | 208368 | 1116.68 | 768 | 748 | 185.9 |
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 |  |