PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-03:28:10
G01     123.7          14.1                9.7 +/-    1.94      24.6 +/-    1.94  0.030 / 0.040
G07     70.2           67.3                5.9 +/-    0.32       6.3 +/-    0.32  0.030 / 0.040
G08     46.6           33.8                3.3 +/-    0.53       5.3 +/-    0.53  0.130 / 0.400
G09     175.9          29.9                7.6 +/-    1.46      13.4 +/-    1.46  0.170 / 0.380
G11     111.5          37.8                7.1 +/-    1.02      10.8 +/-    1.02  0.130 / 0.480
G13     319.7          15.4                2.2 +/-    2.40       5.5 +/-    2.40  0.120 / 0.590
G17     199.3          21.3                8.4 +/-    1.89      17.8 +/-    1.89  0.110 / 0.370
G18     96.5           18.4                7.1 +/-    3.17      16.2 +/-    3.17  0.100 / 0.250
G28     280.0          53.4                8.2 +/-    1.04      10.0 +/-    1.04  0.040 / 0.030
G30     335.6          62.8                4.7 +/-    0.70       5.2 +/-    0.70  0.040 / 0.040