PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-05:58:00
G01     104.6          26.6                6.1 +/-    0.75      11.5 +/-    0.75  0.040 / 0.050
G07     111.4          54.7                7.7 +/-    0.68       9.1 +/-    0.68  0.050 / 0.040
G08     41.4           15.9                2.3 +/-    1.59       5.6 +/-    1.59  0.070 / 0.120
G11     83.3           42.3                5.8 +/-    0.90       8.1 +/-    0.90  0.070 / 0.130
G13     307.4          30.5                5.5 +/-    1.81       9.6 +/-    1.81  0.060 / 0.150
G17     205.8          42.9                6.9 +/-    0.64       9.6 +/-    0.64  0.100 / 0.140
G18     74.9           23.7                6.1 +/-    1.21      12.3 +/-    1.21  0.090 / 0.150
G19     210.0          12.6               -0.0 +/-    6.17      -0.1 +/-    6.17  0.080 / 0.130
G28     319.0          60.8                3.9 +/-    0.64       4.4 +/-    0.64  0.230 / 0.320
G30     25.6           79.1                5.4 +/-    0.53       5.5 +/-    0.53  0.100 / 0.320