PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-15:42:40
G01     46.2           22.3                7.4 +/-    2.03      15.5 +/-    2.03  0.060 / 0.070
G06     175.1          31.8               11.1 +/-    1.50      18.7 +/-    1.50  0.050 / 0.080
G11     43.6           10.1                5.9 +/-    4.50      16.4 +/-    4.50  0.220 / 0.420
G13     245.0          27.4                9.1 +/-    1.88      16.9 +/-    1.88  0.270 / 0.290
G15     281.5          14.0                6.9 +/-    1.14      17.6 +/-    1.14  0.310 / 0.280
G17     339.5          76.2                8.8 +/-    0.38       9.0 +/-    0.38  0.150 / 0.230
G19     253.2          60.9                8.5 +/-    0.57       9.5 +/-    0.57  0.060 / 0.180
G24     318.2          13.5                2.0 +/-   21.12       5.2 +/-   21.12  0.090 / 0.190
G28     59.9           50.8                8.3 +/-    1.01      10.3 +/-    1.01  0.080 / 0.100
G30     152.3          37.1                9.7 +/-    0.80      14.9 +/-    0.80  0.080 / 0.080