PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-02:27:50
G02     56.9           34.2                4.2 +/-    0.80       6.7 +/-    0.80  0.140 / 0.490
G05     62.6           62.9                4.5 +/-    0.45       5.0 +/-    0.45  0.150 / 0.400
G12     187.1          39.0                8.5 +/-    1.65      12.6 +/-    1.65  0.100 / 0.090
G13     130.0          12.5                8.9 +/-    2.38      23.4 +/-    2.38  0.090 / 0.090
G15     164.8          10.2               -7.2 +/-   20.31     -20.1 +/-   20.31  0.040 / 0.070
G21     269.1          16.1                7.9 +/-    1.72      19.1 +/-    1.72  0.040 / 0.070
G25     241.4          54.4                7.1 +/-    1.01       8.6 +/-    1.01  0.050 / 0.090
G29     329.6          54.7                6.4 +/-    0.70       7.6 +/-    0.70  0.050 / 0.100