PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/16-07:58:00
G01     109.7          24.0                5.1 +/-    2.05      10.3 +/-    2.05  0.040 / 0.030
G07     103.4          59.1                7.6 +/-    0.52       8.7 +/-    0.52  0.030 / 0.030
G08     41.8           20.4                2.7 +/-    0.56       5.9 +/-    0.56  0.030 / 0.040
G09     172.1          11.9                3.7 +/-    2.63      10.0 +/-    2.63  0.030 / 0.040
G11     90.7           42.4                7.0 +/-    0.41       9.9 +/-    0.41  0.080 / 0.210
G13     311.4          27.3                3.3 +/-    0.75       6.2 +/-    0.75  0.070 / 0.160
G17     203.9          37.2                5.4 +/-    1.73       8.3 +/-    1.73  0.080 / 0.170
G18     81.2           23.4                4.2 +/-    1.21       8.5 +/-    1.21  0.080 / 0.180
G28     309.9          60.0                5.8 +/-    0.68       6.6 +/-    0.68  0.060 / 0.180
G30     5.2            75.8                6.2 +/-    0.67       6.4 +/-    0.67  0.070 / 0.170