PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/07-07:28:10
G01     77.9           33.2                5.0 +/-    0.76       8.2 +/-    0.76  0.030 / 0.040
G07     133.7          34.9                6.3 +/-    0.67      10.0 +/-    0.67  0.040 / 0.040
G11     56.9           33.4                3.5 +/-    0.39       5.7 +/-    0.39  0.030 / 0.080
G13     281.6          38.2                3.2 +/-    1.05       4.8 +/-    1.05  0.050 / 0.080
G15     309.9          12.1                1.1 +/-    2.46       3.0 +/-    2.46  0.060 / 0.120
G17     224.2          66.3                6.4 +/-    0.90       6.9 +/-    0.90  0.060 / 0.110
G18     51.9           19.4                3.4 +/-    1.18       7.7 +/-    1.18  0.080 / 0.200
G19     219.9          33.4                4.7 +/-    3.55       7.6 +/-    3.55  0.070 / 0.190
G28     5.5            60.9                3.7 +/-    0.66       4.1 +/-    0.66  0.060 / 0.110
G30     127.6          69.4                6.4 +/-    0.83       6.8 +/-    0.83  0.060 / 0.140