PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-17:12:30
G01     37.5           10.2                7.5 +/-    4.80      20.8 +/-    4.80  0.040 / 0.070
G02     199.9          13.7               13.5 +/-    3.66      34.7 +/-    3.66  0.050 / 0.070
G06     172.7          46.4               13.9 +/-    0.83      18.3 +/-    0.83  0.200 / 0.380
G13     230.7          17.7               11.8 +/-    1.83      27.5 +/-    1.83  0.140 / 0.300
G17     9.9            66.4               10.4 +/-    1.43      11.2 +/-    1.43  0.090 / 0.130
G19     303.4          72.0               11.0 +/-    0.43      11.5 +/-    0.43  0.100 / 0.170
G24     313.5          24.6                9.2 +/-    0.59      18.1 +/-    0.59  0.130 / 0.260
G28     75.5           47.6               10.4 +/-    0.88      13.6 +/-    0.88  0.080 / 0.340
G30     155.5          18.6               12.1 +/-    2.58      27.6 +/-    2.58  0.040 / 0.040