PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/07-07:12:50
G01     117.4          17.5                4.3 +/-    1.72      10.1 +/-    1.72  0.040 / 0.040
G07     82.4           65.6                4.9 +/-    0.56       5.3 +/-    0.56  0.030 / 0.040
G08     45.5           33.0                2.4 +/-    0.62       4.0 +/-    0.62  0.030 / 0.040
G09     175.7          25.1                5.7 +/-    0.68      11.2 +/-    0.68  0.030 / 0.050
G11     109.4          41.2                7.0 +/-    1.22      10.0 +/-    1.22  0.080 / 0.220
G13     317.2          20.6                2.8 +/-    2.89       6.1 +/-    2.89  0.070 / 0.200
G17     201.3          23.0                3.7 +/-    0.60       7.5 +/-    0.60  0.120 / 0.360
G18     93.6           20.8                5.1 +/-    0.55      11.0 +/-    0.55  0.130 / 0.330
G28     282.0          52.1                6.4 +/-    1.13       7.9 +/-    1.13  0.140 / 0.340
G30     341.1          67.0                2.8 +/-    0.66       3.0 +/-    0.66  0.170 / 0.390