PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/28-03:57:50
G01     46.7           22.7                3.8 +/-    0.71       7.8 +/-    0.71  0.090 / 0.240
G06     179.2          27.2                6.6 +/-    1.34      12.3 +/-    1.34  0.100 / 0.200
G11     44.3           12.9                2.7 +/-    1.42       7.1 +/-    1.42  0.070 / 0.140
G13     247.0          27.8                3.7 +/-    1.49       6.7 +/-    1.49  0.080 / 0.120
G15     278.5          15.2                4.3 +/-    1.56      10.7 +/-    1.56  0.100 / 0.290
G17     332.5          76.7                5.4 +/-    0.93       5.5 +/-    0.93  0.100 / 0.250
G19     256.1          64.2                5.2 +/-    0.79       5.7 +/-    0.79  0.030 / 0.030
G24     318.9          10.9              -11.2 +/-   24.57     -30.6 +/-   24.57  0.030 / 0.030
G28     60.0           50.5                4.3 +/-    0.73       5.4 +/-    0.73  0.110 / 0.370
G30     150.6          33.2                8.3 +/-    1.61      13.6 +/-    1.61  0.160 / 0.380