PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-00:12:40
G01     79.6           33.3                8.0 +/-    0.85      13.2 +/-    0.85  0.030 / 0.040
G07     132.7          38.0               11.5 +/-    0.83      17.3 +/-    0.83  0.040 / 0.040
G11     62.1           37.6                7.1 +/-    0.78      10.7 +/-    0.78  0.050 / 0.090
G13     284.6          37.3                7.4 +/-    0.72      11.3 +/-    0.72  0.060 / 0.080
G15     308.2          13.8                5.6 +/-    2.10      14.2 +/-    2.10  0.070 / 0.050
G17     222.9          59.7                9.3 +/-    1.86      10.6 +/-    1.86  0.060 / 0.050
G19     219.3          35.3               11.7 +/-    1.46      18.5 +/-    1.46  0.060 / 0.100
G28     7.4            60.6                8.0 +/-    1.23       9.0 +/-    1.23  0.060 / 0.100
G30     126.5          64.9               10.4 +/-    0.39      11.4 +/-    0.39  0.040 / 0.060