PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/30-01:42:50
G01     269.8          41.0                6.3 +/-    1.90       9.0 +/-    1.90  0.070 / 0.070
G03     315.8          28.9                2.3 +/-    2.06       4.2 +/-    2.06  0.050 / 0.070
G10     130.1          15.9                5.3 +/-    2.13      12.9 +/-    2.13  0.040 / 0.050
G11     248.6          19.6                5.0 +/-    2.71      11.2 +/-    2.71  0.040 / 0.040
G14     43.6           50.0                4.2 +/-    0.91       5.2 +/-    0.91  0.050 / 0.060
G18     231.7          38.3                6.9 +/-    1.80      10.3 +/-    1.80  0.040 / 0.060
G22     313.9          51.5                3.9 +/-    0.85       4.8 +/-    0.85  0.120 / 0.360
G25     49.7           15.0                3.4 +/-    2.41       8.5 +/-    2.41  0.110 / 0.320
G31     54.2           73.1                3.6 +/-    0.37       3.7 +/-    0.37  0.090 / 0.230
G32     65.2           31.3                2.6 +/-    1.08       4.4 +/-    1.08  0.130 / 0.190