PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-13:13:10
G01     79.8           33.2                3.8 +/-    1.26       6.2 +/-    1.26  0.030 / 0.020
G07     132.6          37.7                6.1 +/-    0.95       9.3 +/-    0.95  0.030 / 0.020
G11     58.8           34.6                4.4 +/-    0.69       7.0 +/-    0.69  0.060 / 0.060
G13     283.8          37.9                7.1 +/-    2.03      10.7 +/-    2.03  0.060 / 0.060
G15     311.7          11.2               -3.3 +/-   16.39      -9.1 +/-   16.39  0.080 / 0.080
G17     222.4          63.5                5.5 +/-    1.28       6.0 +/-    1.28  0.060 / 0.080
G18     54.9           21.1                5.4 +/-    3.41      11.6 +/-    3.41  0.050 / 0.100
G19     219.2          31.6                4.2 +/-    2.48       7.1 +/-    2.48  0.060 / 0.080
G28     5.3            60.8                4.2 +/-    1.10       4.8 +/-    1.10  0.190 / 0.180
G30     124.6          70.7                5.7 +/-    0.51       6.0 +/-    0.51  0.220 / 0.380