PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-05:12:50
G01     76.0           33.2                4.7 +/-    1.10       7.7 +/-    1.10  0.030 / 0.030
G07     134.6          32.8                7.7 +/-    0.71      12.7 +/-    0.71  0.030 / 0.030
G11     55.6           32.4                3.1 +/-    1.03       5.2 +/-    1.03  0.060 / 0.090
G13     279.6          38.3                5.7 +/-    2.10       8.6 +/-    2.10  0.060 / 0.090
G15     307.7          13.3                1.7 +/-    3.29       4.3 +/-    3.29  0.040 / 0.050
G17     226.3          68.1                6.2 +/-    0.80       6.6 +/-    0.80  0.040 / 0.040
G18     50.0           18.1                3.5 +/-    3.23       8.1 +/-    3.23  0.130 / 0.160
G19     220.8          35.7                5.7 +/-    1.49       9.0 +/-    1.49  0.110 / 0.180
G28     7.3            60.8                4.5 +/-    1.21       5.1 +/-    1.21  0.050 / 0.070
G30     130.1          67.7                6.7 +/-    0.64       7.2 +/-    0.64  0.050 / 0.080