PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-09:28:00
G01     72.8           32.3                4.8 +/-    1.05       8.1 +/-    1.05  0.060 / 0.070
G07     135.1          32.4                6.6 +/-    0.89      11.0 +/-    0.89  0.070 / 0.080
G11     56.6           34.9                5.1 +/-    1.97       8.1 +/-    1.97  0.040 / 0.040
G13     277.2          39.0                5.9 +/-    0.92       8.7 +/-    0.92  0.040 / 0.050
G15     305.3          14.4                1.1 +/-    1.98       2.8 +/-    1.98  0.080 / 0.080
G17     226.1          64.3                7.3 +/-    0.99       8.0 +/-    0.99  0.080 / 0.070
G18     50.9           19.5                3.8 +/-    1.95       8.4 +/-    1.95  0.100 / 0.250
G19     220.8          41.2                7.0 +/-    1.16      10.0 +/-    1.16  0.080 / 0.290
G28     358.3          61.5                4.5 +/-    0.48       5.0 +/-    0.48  0.040 / 0.030
G30     132.0          67.1                7.3 +/-    0.71       7.9 +/-    0.71  0.030 / 0.030