PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-12:58:00
G01     65.9           31.6                3.7 +/-    0.92       6.4 +/-    0.92  0.040 / 0.050
G07     138.7          25.3                4.3 +/-    1.47       8.3 +/-    1.47  0.040 / 0.050
G11     51.5           29.5                5.3 +/-    1.18       9.4 +/-    1.18  0.070 / 0.130
G13     269.1          38.0                5.4 +/-    3.46       8.1 +/-    3.46  0.100 / 0.130
G15     300.0          15.5                3.0 +/-    1.12       7.3 +/-    1.12  0.040 / 0.030
G17     235.2          67.4                5.0 +/-    0.60       5.4 +/-    0.60  0.040 / 0.040
G18     45.8           16.2                5.3 +/-    1.87      12.9 +/-    1.87  0.200 / 0.410
G19     225.8          46.6                5.7 +/-    1.95       7.5 +/-    1.95  0.260 / 0.360
G28     12.4           60.7                5.3 +/-    1.66       5.9 +/-    1.66  0.150 / 0.120
G30     138.8          58.7                5.9 +/-    0.61       6.8 +/-    0.61  0.100 / 0.130