PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-16:42:50
G01     72.7           33.1                8.9 +/-    0.91      14.6 +/-    0.91  0.080 / 0.200
G07     136.5          32.7               11.9 +/-    1.07      19.8 +/-    1.07  0.080 / 0.240
G11     54.8           31.8                8.8 +/-    1.70      14.8 +/-    1.70  0.030 / 0.030
G13     276.4          37.8                9.6 +/-    1.46      14.5 +/-    1.46  0.030 / 0.030
G15     305.5          14.0                7.9 +/-    1.19      20.2 +/-    1.19  0.070 / 0.100
G17     230.4          66.5               12.1 +/-    1.02      13.0 +/-    1.02  0.070 / 0.080
G18     50.3           18.9               10.2 +/-    2.56      23.1 +/-    2.56  0.040 / 0.050
G19     223.0          38.1               12.5 +/-    2.10      18.7 +/-    2.10  0.040 / 0.040
G28     16.7           59.7               10.7 +/-    0.91      12.2 +/-    0.91  0.110 / 0.090
G30     133.7          63.7               11.7 +/-    0.71      12.9 +/-    0.71  0.100 / 0.110