Observation information
- date-obs: 2017-07-31
- time-obs: 22:50:04.591300000
- date-end: 2017-08-02
- time-end: 01:22:53.103500000
- obs_id: G07_047T01_9000001424
- exposure: 47887.0512701
- sourceid: 4U 1820-30
- observer: jsyadav
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G07_047T01_9000001424cztM0_level2.evt
| modeM0/AS1G07_047T01_9000001424cztM0_level2_quad_clean.evt
|
Size (bytes) | 6,350,135,040 | 969,949,440 |
Size | 5.9 GB
| 925.0 MB
|
Events in quadrant A | 47,299,564 | 5,987,806 |
Events in quadrant B | 40,939,359 | 6,182,961 |
Events in quadrant C | 35,638,385 | 6,167,049 |
Events in quadrant D | 63,083,652 | 5,591,516 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 134 | 0 |
B | 0 | 132 | 0 |
C | 0 | 133 | 0 |
D | 0 | 135 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1619 | 0 |
B | 0 | 1628 | 0 |
C | 0 | 1627 | 0 |
D | 0 | 1624 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 195867 | 0 |
B | 0 | 174542 | 0 |
C | 0 | 162925 | 0 |
D | 0 | 241086 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 79590 | 3793 | 4.765674% |
B | 79546 | 1480 | 1.860559% |
C | 79593 | 559 | 0.702323% |
D | 78970 | 5294 | 6.703812% |
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 | 95570 | 80900 | 2785 | 2785 | 2.91% | 3.44% |  |
B | 95570 | 80840 | 455 | 455 | 0.48% | 0.56% |  |
C | 95570 | 80837 | 0 | 0 | 0.00% | 0.00% |  |
D | 95570 | 80336 | 4399 | 4399 | 4.60% | 5.48% |  |
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 | 10888508 | 5827.09 | 9247 | 9049 | 1867.0 |
A | 15 | 174 | 665886 | 351.8 | 9247 | 9049 | 1867.0 |
A | 8 | 15 | 89276 | 42.97 | 9247 | 9049 | 1867.0 |
B | 4 | 81 | 1831904 | 1021.03 | 9444 | 9224 | 1785.1 |
B | 4 | 239 | 514497 | 283.04 | 9444 | 9224 | 1785.1 |
B | 0 | 214 | 495491 | 272.4 | 9444 | 9224 | 1785.1 |
C | 13 | 61 | 68224 | 28.06 | 9117 | 9161 | 2105.1 |
C | 14 | 67 | 44526 | 16.8 | 9117 | 9161 | 2105.1 |
C | 8 | 222 | 40943 | 15.1 | 9117 | 9161 | 2105.1 |
D | 1 | 52 | 17574587 | 7970.6 | 8691 | 8470 | 2203.9 |
D | 2 | 16 | 3935708 | 1781.98 | 8691 | 8470 | 2203.9 |
D | 8 | 195 | 2242003 | 1013.46 | 8691 | 8470 | 2203.9 |
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 |  |