Observation information
- date-obs: 2016-08-03
- time-obs: 18:37:49.656700000
- date-end: 2016-08-04
- time-end: 05:26:37.660700000
- obs_id: G05_167T02_9000000574
- exposure: 15078.2110396
- sourceid: GRS1915+105
- observer: dipankar
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G05_167T02_9000000574cztM0_level2_bc.evt
| modeM0/AS1G05_167T02_9000000574cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,150,560,000 | 302,613,120 |
Size | 1.1 GB
| 288.6 MB
|
Events in quadrant A | 6,454,562 | 1,761,447 |
Events in quadrant B | 7,080,902 | 1,797,288 |
Events in quadrant C | 11,003,914 | 1,776,057 |
Events in quadrant D | 8,151,525 | 1,661,243 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 65683 | 0 |
B | 0 | 66910 | 0 |
C | 0 | 78590 | 0 |
D | 0 | 72881 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 640 | 0 |
B | 0 | 640 | 0 |
C | 0 | 640 | 0 |
D | 0 | 640 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 75 | 0 |
B | 0 | 75 | 0 |
C | 0 | 75 | 0 |
D | 0 | 75 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 31569 | 203 | 0.643036% |
B | 31569 | 253 | 0.801419% |
C | 31569 | 163 | 0.516329% |
D | 31569 | 630 | 1.995629% |
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 | 38929 | 31570 | 0 | 0 | 0.00% | 0.00% |  |
B | 38929 | 31570 | 10 | 10 | 0.03% | 0.03% |  |
C | 38929 | 31569 | 2 | 2 | 0.01% | 0.01% |  |
D | 38929 | 31569 | 40 | 40 | 0.10% | 0.13% |  |
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 | 174 | 126225 | 354.94 | 1593 | 1558 | 351.2 |
A | 10 | 253 | 71577 | 199.35 | 1593 | 1558 | 351.2 |
A | 0 | 50 | 65074 | 180.84 | 1593 | 1558 | 351.2 |
B | 14 | 167 | 185197 | 597.52 | 1625 | 1580 | 307.3 |
B | 15 | 204 | 165967 | 534.94 | 1625 | 1580 | 307.3 |
B | 4 | 48 | 148432 | 477.88 | 1625 | 1580 | 307.3 |
C | 14 | 48 | 4725655 | 13204.49 | 1580 | 1550 | 357.8 |
C | 9 | 247 | 52062 | 141.19 | 1580 | 1550 | 357.8 |
C | 12 | 4 | 20741 | 53.64 | 1580 | 1550 | 357.8 |
D | 13 | 235 | 1241417 | 3416.54 | 1558 | 1497 | 362.9 |
D | 2 | 136 | 338657 | 929.03 | 1558 | 1497 | 362.9 |
D | 2 | 14 | 107291 | 291.51 | 1558 | 1497 | 362.9 |
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 |  |