PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/01-23:58:00
G01     40.8           15.9                9.4 +/-    1.03      22.8 +/-    1.03  0.120 / 0.320
G02     198.8          10.2                1.1 +/-   19.75       3.0 +/-   19.75  0.110 / 0.370
G06     175.1          39.7               16.7 +/-    1.11      24.4 +/-    1.11  0.030 / 0.030
G13     237.5          21.5               14.9 +/-    2.41      31.5 +/-    2.41  0.030 / 0.040
G15     269.8          12.1               13.5 +/-    1.54      36.0 +/-    1.54  0.040 / 0.080
G17     352.1          71.9               10.8 +/-    0.39      11.3 +/-    0.39  0.050 / 0.080
G19     279.0          69.1               11.5 +/-    0.45      12.2 +/-    0.45  0.160 / 0.280
G24     316.4          19.6                9.8 +/-    2.43      21.7 +/-    2.43  0.140 / 0.360
G28     73.2           46.1               11.1 +/-    1.11      14.8 +/-    1.11  0.190 / 0.390
G30     154.1          24.6               15.5 +/-    0.90      30.6 +/-    0.90  0.060 / 0.080