PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-10:43:00
G01     63.4           31.0                4.2 +/-    0.81       7.2 +/-    0.81  0.100 / 0.130
G07     139.7          24.5                4.2 +/-    1.50       8.2 +/-    1.50  0.100 / 0.150
G11     50.7           28.8                3.2 +/-    2.18       5.7 +/-    2.18  0.040 / 0.030
G13     266.5          37.6                6.0 +/-    2.97       9.1 +/-    2.97  0.040 / 0.030
G15     298.7          15.6                1.3 +/-    1.56       3.3 +/-    1.56  0.090 / 0.090
G17     240.2          71.0                6.5 +/-    0.41       6.9 +/-    0.41  0.130 / 0.130
G18     44.5           15.2                2.9 +/-    1.84       7.2 +/-    1.84  0.090 / 0.250
G19     227.5          48.7                6.5 +/-    2.61       8.3 +/-    2.61  0.080 / 0.220
G28     14.7           60.6                4.8 +/-    1.85       5.5 +/-    1.85  0.030 / 0.040
G30     140.8          58.3                5.7 +/-    0.78       6.5 +/-    0.78  0.030 / 0.030