PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-02:58:00
G01     106.8          25.7                6.7 +/-    1.51      12.9 +/-    1.51  0.040 / 0.040
G07     107.2          58.0                5.8 +/-    0.61       6.7 +/-    0.61  0.040 / 0.050
G08     42.0           20.8                3.2 +/-    2.21       6.9 +/-    2.21  0.200 / 0.160
G09     175.4          14.2                5.6 +/-    0.98      14.1 +/-    0.98  0.090 / 0.130
G11     90.7           42.8                7.6 +/-    0.71      10.5 +/-    0.71  0.070 / 0.080
G13     310.2          27.8                2.3 +/-    1.31       4.2 +/-    1.31  0.070 / 0.060
G17     206.1          38.1                5.3 +/-    0.75       7.9 +/-    0.75  0.030 / 0.040
G19     209.1          14.0                3.6 +/-    2.17       9.1 +/-    2.17  0.030 / 0.030
G28     319.9          61.2                2.1 +/-    0.52       2.3 +/-    0.52  0.090 / 0.100
G30     40.4           78.1                3.6 +/-    0.63       3.7 +/-    0.63  0.080 / 0.120