PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/03-16:57:40
G01     115.2          20.7               16.1 +/-    1.11      34.8 +/-    1.11  0.060 / 0.070
G07     90.7           64.4               15.0 +/-    0.60      16.4 +/-    0.60  0.060 / 0.090
G08     43.8           29.0               11.0 +/-    0.45      19.7 +/-    0.45  0.030 / 0.040
G09     176.1          21.3               15.7 +/-    1.39      33.4 +/-    1.39  0.030 / 0.040
G11     101.5          41.5               15.4 +/-    0.48      21.8 +/-    0.48  0.070 / 0.130
G13     315.4          22.8               11.4 +/-    1.54      23.4 +/-    1.54  0.050 / 0.120
G17     203.6          27.1               17.2 +/-    0.68      32.0 +/-    0.68  0.030 / 0.030
G18     89.8           22.4               12.5 +/-    0.82      25.9 +/-    0.82  0.040 / 0.040
G28     301.4          59.0               14.0 +/-    0.70      16.0 +/-    0.70  0.040 / 0.070
G30     356.7          72.5               15.6 +/-    1.29      16.3 +/-    1.29  0.040 / 0.090