PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-10:12:50
G01     73.2           33.2                4.7 +/-    0.58       7.8 +/-    0.58  0.040 / 0.040
G07     136.2          32.0                7.0 +/-    0.47      11.8 +/-    0.47  0.030 / 0.030
G11     54.1           31.1                3.7 +/-    0.81       6.4 +/-    0.81  0.060 / 0.090
G13     276.6          38.0                5.6 +/-    1.22       8.5 +/-    1.22  0.040 / 0.080
G15     308.2          12.3                2.1 +/-    1.70       5.7 +/-    1.70  0.050 / 0.090
G17     230.3          69.3                6.8 +/-    0.98       7.2 +/-    0.98  0.050 / 0.110
G18     49.4           18.1                1.7 +/-    0.95       3.9 +/-    0.95  0.050 / 0.140
G19     222.5          35.9                7.0 +/-    1.99      10.9 +/-    1.99  0.050 / 0.110
G28     13.8           60.1                4.0 +/-    0.44       4.5 +/-    0.44  0.080 / 0.220
G30     133.3          65.6                6.0 +/-    0.63       6.5 +/-    0.63  0.080 / 0.220