PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-09:27:50
G01     109.8          24.0                7.2 +/-    1.56      14.4 +/-    1.56  0.030 / 0.030
G07     103.1          59.5                6.7 +/-    0.61       7.7 +/-    0.61  0.040 / 0.030
G08     41.9           20.8                3.7 +/-    3.27       8.0 +/-    3.27  0.030 / 0.020
G09     172.1          11.8                6.1 +/-    2.92      16.5 +/-    2.92  0.030 / 0.030
G11     91.0           42.4                6.6 +/-    0.97       9.3 +/-    0.97  0.060 / 0.140
G13     311.5          27.2                3.5 +/-    2.00       6.6 +/-    2.00  0.080 / 0.160
G17     204.1          36.7                6.8 +/-    0.83      10.5 +/-    0.83  0.060 / 0.060
G18     81.8           23.5                6.5 +/-    1.99      13.1 +/-    1.99  0.040 / 0.040
G28     310.4          60.1                4.4 +/-    1.36       5.0 +/-    1.36  0.080 / 0.150
G30     5.4            75.8                5.7 +/-    1.01       5.9 +/-    1.01  0.080 / 0.120