PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/04-11:57:40
G01     108.5          23.7                3.6 +/-    2.34       7.4 +/-    2.34  0.040 / 0.060
G07     104.8          57.1                4.5 +/-    0.39       5.2 +/-    0.39  0.040 / 0.070
G08     42.8           26.1                3.2 +/-    1.16       6.2 +/-    1.16  0.040 / 0.070
G09     175.5          16.8                5.6 +/-    2.18      13.2 +/-    2.18  0.040 / 0.090
G11     93.0           43.7                4.5 +/-    0.88       6.2 +/-    0.88  0.060 / 0.130
G13     311.1          28.1                4.2 +/-    1.62       7.6 +/-    1.62  0.060 / 0.140
G17     205.0          31.0                4.6 +/-    2.18       7.8 +/-    2.18  0.030 / 0.050
G18     82.3           23.7                2.2 +/-    0.60       4.4 +/-    0.60  0.040 / 0.040
G28     300.8          57.3                4.5 +/-    0.64       5.3 +/-    0.64  0.080 / 0.200
G30     13.4           76.9                5.7 +/-    0.72       5.9 +/-    0.72  0.080 / 0.200