PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/02-07:57:50
G01     107.2          24.0                4.6 +/-    0.84       9.2 +/-    0.84  0.030 / 0.030
G07     104.5          58.4                5.9 +/-    0.63       6.8 +/-    0.63  0.030 / 0.040
G08     42.3           23.7                2.0 +/-    1.16       3.9 +/-    1.16  0.030 / 0.050
G09     174.2          14.7                5.6 +/-    1.55      14.0 +/-    1.55  0.030 / 0.040
G11     93.8           44.4                6.3 +/-    0.62       8.5 +/-    0.62  0.060 / 0.190
G13     310.5          28.7                2.1 +/-    0.78       3.9 +/-    0.78  0.060 / 0.180
G17     204.5          34.1                5.9 +/-    1.66       9.5 +/-    1.66  0.090 / 0.150
G18     81.8           23.9                4.2 +/-    0.60       8.4 +/-    0.60  0.090 / 0.120
G28     300.2          56.9                3.8 +/-    1.05       4.4 +/-    1.05  0.090 / 0.200
G30     5.0            76.3                5.2 +/-    0.54       5.4 +/-    0.54  0.080 / 0.170