PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-03:57:40
G01     270.1          41.0                4.9 +/-    1.12       6.9 +/-    1.12  0.040 / 0.040
G03     315.7          27.9                2.4 +/-    2.51       4.4 +/-    2.51  0.040 / 0.060
G10     130.0          16.3                5.5 +/-    1.43      13.3 +/-    1.43  0.090 / 0.080
G11     248.7          19.8                6.1 +/-    1.66      13.6 +/-    1.66  0.060 / 0.080
G14     43.1           50.3                3.1 +/-    0.44       3.9 +/-    0.44  0.040 / 0.060
G18     233.1          38.7                5.8 +/-    1.07       8.7 +/-    1.07  0.050 / 0.070
G22     313.9          50.7                4.3 +/-    1.42       5.3 +/-    1.42  0.110 / 0.300
G25     51.1           16.0                2.7 +/-    1.48       6.5 +/-    1.48  0.120 / 0.320
G31     52.7           71.0                5.0 +/-    0.47       5.2 +/-    0.47  0.150 / 0.180
G32     65.6           30.6                3.3 +/-    0.61       5.8 +/-    0.61  0.120 / 0.240