PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/05-04:27:50
G01     111.9          22.6                9.5 +/-    1.17      19.7 +/-    1.17  0.030 / 0.040
G07     100.2          59.9                7.6 +/-    0.59       8.7 +/-    0.59  0.030 / 0.040
G08     42.1           22.1                3.1 +/-    1.09       6.5 +/-    1.09  0.030 / 0.030
G09     174.1          16.2                7.4 +/-    2.06      17.9 +/-    2.06  0.030 / 0.030
G11     93.6           42.1                7.1 +/-    0.51      10.0 +/-    0.51  0.070 / 0.080
G13     313.0          25.8                4.0 +/-    1.81       7.7 +/-    1.81  0.050 / 0.080
G17     202.8          35.3               10.0 +/-    0.75      15.8 +/-    0.75  0.060 / 0.220
G28     304.0          59.0                5.8 +/-    0.59       6.7 +/-    0.59  0.060 / 0.220
G30     359.1          74.2                6.4 +/-    0.81       6.6 +/-    0.81  0.040 / 0.060