Observation information
- date-obs: 2017-08-09
- time-obs: 17:46:02.214700000
- date-end: 2017-08-10
- time-end: 17:48:43.251900000
- obs_id: G07_072T01_9000001452
- exposure: 22001.3350762
- sourceid: 4U 1822-37
- observer: bpaul
- ra_pnt: 276.445
- dec_pnt: -37.10517
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G07_072T01_9000001452cztM0_level2.evt
| modeM0/AS1G07_072T01_9000001452cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,310,736,320 | 451,647,360 |
Size | 2.2 GB
| 430.7 MB
|
Events in quadrant A | 15,347,834 | 2,903,231 |
Events in quadrant B | 16,567,790 | 2,937,155 |
Events in quadrant C | 15,224,506 | 2,894,789 |
Events in quadrant D | 20,666,650 | 2,732,386 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 67141 | 0 |
B | 0 | 70018 | 0 |
C | 0 | 67446 | 0 |
D | 0 | 82549 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 81 | 0 |
B | 0 | 80 | 0 |
C | 0 | 80 | 0 |
D | 0 | 82 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 657 | 0 |
B | 0 | 658 | 0 |
C | 0 | 656 | 0 |
D | 0 | 660 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 32223 | 427 | 1.325140% |
B | 32227 | 504 | 1.563906% |
C | 32239 | 375 | 1.163187% |
D | 32101 | 770 | 2.398679% |
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 | 86562 | 32680 | 0 | 0 | 0.00% | 0.00% |  |
B | 86562 | 32685 | 42 | 42 | 0.05% | 0.13% |  |
C | 86562 | 32690 | 67 | 67 | 0.08% | 0.20% |  |
D | 86562 | 32635 | 385 | 385 | 0.44% | 1.18% |  |
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 | 0 | 226 | 36967 | 41.52 | 3970 | 3887 | 796.7 |
A | 8 | 15 | 33745 | 37.48 | 3970 | 3887 | 796.7 |
A | 12 | 194 | 33302 | 36.92 | 3970 | 3887 | 796.7 |
B | 0 | 214 | 303721 | 401.42 | 3976 | 3883 | 746.9 |
B | 4 | 239 | 196234 | 257.52 | 3976 | 3883 | 746.9 |
B | 0 | 219 | 195027 | 255.9 | 3976 | 3883 | 746.9 |
C | 10 | 22 | 231724 | 260.44 | 3815 | 3836 | 875.0 |
C | 14 | 234 | 49794 | 52.52 | 3815 | 3836 | 875.0 |
C | 14 | 67 | 32929 | 33.25 | 3815 | 3836 | 875.0 |
D | 1 | 52 | 2940187 | 2953.95 | 3755 | 3678 | 994.1 |
D | 2 | 16 | 693052 | 693.47 | 3755 | 3678 | 994.1 |
D | 0 | 11 | 684970 | 685.34 | 3755 | 3678 | 994.1 |
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 |  |