PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/22-02:42:40
G01     125.5          12.6                2.2 +/-   21.80       5.8 +/-   21.80  0.030 / 0.050
G07     64.5           67.9                5.3 +/-    0.59       5.6 +/-    0.59  0.030 / 0.040
G08     47.9           35.6                2.3 +/-    0.64       3.6 +/-    0.64  0.060 / 0.070
G09     176.4          32.6                6.3 +/-    1.60      10.4 +/-    1.60  0.050 / 0.070
G11     114.1          36.7                6.1 +/-    1.14       9.3 +/-    1.14  0.150 / 0.420
G13     320.4          13.6                0.0 +/-    2.25       0.0 +/-    2.25  0.110 / 0.350
G17     199.0          19.0                5.6 +/-    1.37      12.6 +/-    1.37  0.090 / 0.300
G18     98.4           17.4                6.2 +/-    1.52      14.6 +/-    1.52  0.080 / 0.320
G28     276.3          52.1                4.7 +/-    1.37       5.8 +/-    1.37  0.030 / 0.050
G30     333.0          61.0                2.3 +/-    1.05       2.6 +/-    1.05  0.030 / 0.060