PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/28-04:58:00
G01     49.4           25.0                6.1 +/-    0.76      12.0 +/-    0.76  0.170 / 0.410
G06     178.8          24.0                8.1 +/-    1.08      16.2 +/-    1.08  0.030 / 0.050
G11     44.0           13.1                3.6 +/-    2.19       9.4 +/-    2.19  0.030 / 0.060
G13     249.2          30.3                5.8 +/-    2.38      10.1 +/-    2.38  0.110 / 0.160
G15     284.1          15.2                2.5 +/-    2.13       6.1 +/-    2.13  0.110 / 0.190
G17     332.7          78.3                7.8 +/-    0.38       7.9 +/-    0.38  0.070 / 0.140
G19     246.1          58.6                7.1 +/-    0.85       8.2 +/-    0.85  0.060 / 0.170
G24     318.2          12.1              -16.1 +/-   17.72     -42.8 +/-   17.72  0.040 / 0.060
G28     50.2           54.1                6.8 +/-    0.29       8.1 +/-    0.29  0.040 / 0.060
G30     150.4          42.0               11.5 +/-    0.81      16.3 +/-    0.81  0.040 / 0.050