PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/16-03:42:40
G01     76.5           33.3                4.3 +/-    1.18       7.1 +/-    1.18  0.030 / 0.050
G07     134.5          35.3                6.2 +/-    1.19       9.9 +/-    1.19  0.030 / 0.040
G11     58.7           34.9                2.2 +/-    1.03       3.5 +/-    1.03  0.050 / 0.070
G13     281.8          37.3                4.3 +/-    0.79       6.5 +/-    0.79  0.050 / 0.080
G15     306.0          14.7                1.5 +/-    3.13       3.8 +/-    3.13  0.110 / 0.300
G17     226.2          64.6                7.7 +/-    0.86       8.5 +/-    0.86  0.090 / 0.310
G19     220.9          38.5                7.4 +/-    1.30      11.0 +/-    1.30  0.040 / 0.030
G28     12.4           60.1                3.7 +/-    0.55       4.2 +/-    0.55  0.040 / 0.040
G30     129.7          63.1                4.3 +/-    0.56       4.7 +/-    0.56  0.070 / 0.090