PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-16:43:10
G01     45.0           21.2                9.1 +/-    1.22      19.4 +/-    1.22  0.050 / 0.110
G06     174.9          33.4               13.4 +/-    1.34      22.0 +/-    1.34  0.070 / 0.090
G13     243.5          26.4               13.6 +/-    1.69      25.7 +/-    1.69  0.100 / 0.150
G15     279.5          13.8                9.7 +/-    1.70      24.9 +/-    1.70  0.110 / 0.160
G17     342.5          75.4               11.1 +/-    0.79      11.4 +/-    0.79  0.040 / 0.060
G19     256.7          62.4               10.3 +/-    0.68      11.5 +/-    0.68  0.040 / 0.080
G24     318.0          14.7                8.6 +/-    2.01      21.5 +/-    2.01  0.130 / 0.380
G28     62.3           50.1               11.5 +/-    0.60      14.5 +/-    0.60  0.150 / 0.370
G30     152.8          35.1               11.6 +/-    1.00      18.4 +/-    1.00  0.080 / 0.180