PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/04-15:28:00
G01     40.5           15.3                7.7 +/-    2.03      19.0 +/-    2.03  0.050 / 0.080
G06     172.6          42.4               13.0 +/-    1.30      18.2 +/-    1.30  0.050 / 0.070
G13     236.2          21.1               14.5 +/-    2.30      31.1 +/-    2.30  0.140 / 0.300
G15     272.7          11.4               10.1 +/-    1.76      27.4 +/-    1.76  0.130 / 0.330
G17     6.3            68.8               11.9 +/-    0.93      12.7 +/-    0.93  0.060 / 0.150
G19     274.6          67.1               10.1 +/-    0.66      10.8 +/-    0.66  0.060 / 0.150
G24     315.5          21.7                6.9 +/-    1.70      14.6 +/-    1.70  0.080 / 0.220
G28     73.2           46.3                8.9 +/-    1.49      11.7 +/-    1.49  0.080 / 0.170
G30     155.4          27.4               12.7 +/-    1.47      23.6 +/-    1.47  0.090 / 0.250