PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-09:42:50
G01     43.0           19.0                2.7 +/-    1.29       6.0 +/-    1.29  0.050 / 0.090
G06     174.6          33.6                7.7 +/-    1.07      12.5 +/-    1.07  0.060 / 0.080
G11     43.7           10.6                2.4 +/-    1.83       6.5 +/-    1.83  0.040 / 0.040
G13     241.1          26.3                8.8 +/-    2.05      16.6 +/-    2.05  0.040 / 0.030
G15     275.4          13.9                5.3 +/-    1.60      13.5 +/-    1.60  0.120 / 0.260
G17     343.1          75.4                6.4 +/-    0.71       6.6 +/-    0.71  0.120 / 0.260
G19     264.1          68.0                5.7 +/-    0.67       6.1 +/-    0.67  0.090 / 0.210
G24     318.2          13.1                1.5 +/-    2.05       3.8 +/-    2.05  0.090 / 0.190
G28     54.4           54.7                3.9 +/-    0.46       4.7 +/-    0.46  0.030 / 0.060
G30     153.7          35.6                7.2 +/-    0.64      11.3 +/-    0.64  0.040 / 0.060