PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/30-18:43:10
G01     43.6           19.7                8.0 +/-    0.85      17.8 +/-    0.85  0.070 / 0.060
G06     176.5          32.2               12.8 +/-    1.42      21.3 +/-    1.42  0.040 / 0.070
G13     241.3          26.0               12.7 +/-    1.28      24.2 +/-    1.28  0.130 / 0.340
G15     275.0          13.9               10.3 +/-    1.49      26.3 +/-    1.49  0.120 / 0.370
G17     345.6          74.9               10.2 +/-    0.67      10.5 +/-    0.67  0.050 / 0.050
G19     263.1          66.9                9.6 +/-    0.55      10.4 +/-    0.55  0.050 / 0.040
G24     317.7          15.0                7.9 +/-    1.64      19.7 +/-    1.64  0.110 / 0.160
G28     58.2           52.9               10.0 +/-    0.55      12.2 +/-    0.55  0.100 / 0.160
G30     152.1          29.9               11.7 +/-    1.39      20.5 +/-    1.39  0.090 / 0.130