PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/06-03:57:50
G01     122.1          15.4                7.1 +/-    1.71      17.5 +/-    1.71  0.030 / 0.030
G07     75.1           66.6                5.8 +/-    0.66       6.2 +/-    0.66  0.040 / 0.040
G08     45.6           32.1                4.0 +/-    0.43       6.7 +/-    0.43  0.090 / 0.250
G09     175.6          27.6                6.8 +/-    1.64      12.5 +/-    1.64  0.100 / 0.210
G11     109.1          38.7                5.8 +/-    0.56       8.6 +/-    0.56  0.040 / 0.060
G13     319.0          17.0                2.3 +/-    2.38       5.4 +/-    2.38  0.050 / 0.060
G17     199.7          23.2                4.6 +/-    2.08       9.4 +/-    2.08  0.030 / 0.030
G28     283.3          54.5                5.9 +/-    0.68       7.1 +/-    0.68  0.030 / 0.040
G30     338.0          64.5                4.1 +/-    0.50       4.5 +/-    0.50  0.060 / 0.130