PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/29-09:42:30
G01     121.4          14.8                3.2 +/-    1.84       7.9 +/-    1.84  0.030 / 0.030
G07     73.8           66.7                5.4 +/-    0.65       5.8 +/-    0.65  0.030 / 0.030
G08     48.7           38.7                3.2 +/-    0.86       4.7 +/-    0.86  0.140 / 0.250
G09     177.1          30.7                4.9 +/-    1.97       8.5 +/-    1.97  0.230 / 0.330
G11     113.5          39.1                5.3 +/-    1.25       7.9 +/-    1.25  0.090 / 0.110
G13     319.0          17.1                4.6 +/-    2.95      10.8 +/-    2.95  0.090 / 0.130
G17     201.0          17.1                5.3 +/-    2.22      12.5 +/-    2.22  0.130 / 0.240
G18     97.9           19.1                3.5 +/-    2.36       7.8 +/-    2.36  0.110 / 0.220
G28     276.4          50.4                6.1 +/-    2.85       7.7 +/-    2.85  0.040 / 0.060
G30     337.9          64.5                4.3 +/-    0.69       4.7 +/-    0.69  0.040 / 0.060