PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/06-13:58:10
G01     45.2           21.3                5.6 +/-    2.67      11.9 +/-    2.67  0.040 / 0.050
G06     175.6          30.5                8.3 +/-    1.59      14.3 +/-    1.59  0.040 / 0.050
G11     43.7           11.4                5.2 +/-    2.81      14.1 +/-    2.81  0.460 / 0.430
G13     243.8          28.0                6.4 +/-    1.76      11.8 +/-    1.76  0.390 / 0.430
G15     278.8          14.5                3.9 +/-    2.71       9.7 +/-    2.71  0.040 / 0.030
G17     319.0          77.1                7.3 +/-    0.34       7.4 +/-    0.34  0.030 / 0.030
G19     257.0          65.6                8.1 +/-    0.51       8.9 +/-    0.51  0.040 / 0.050
G24     318.5          11.6               -8.7 +/-   27.60     -23.3 +/-   27.60  0.040 / 0.050
G28     51.8           54.9                5.9 +/-    0.96       7.1 +/-    0.96  0.090 / 0.170
G30     151.9          35.8                7.8 +/-    1.40      12.2 +/-    1.40  0.090 / 0.170