PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/26-03:57:50
G01     83.6           32.8                4.9 +/-    0.98       8.0 +/-    0.98  0.050 / 0.070
G07     130.3          38.2                7.1 +/-    0.58      10.7 +/-    0.58  0.040 / 0.080
G11     61.0           36.2                3.5 +/-    0.48       5.4 +/-    0.48  0.110 / 0.270
G13     287.7          37.8                3.9 +/-    1.56       5.9 +/-    1.56  0.090 / 0.270
G15     312.3          11.4                1.0 +/-    2.15       2.7 +/-    2.15  0.090 / 0.110
G17     218.3          61.9                6.8 +/-    0.99       7.6 +/-    0.99  0.080 / 0.110
G18     55.1           20.4                2.0 +/-    1.29       4.4 +/-    1.29  0.040 / 0.060
G19     217.0          30.2                6.9 +/-    1.54      11.9 +/-    1.54  0.040 / 0.070
G28     354.6          61.5                4.9 +/-    0.97       5.5 +/-    0.97  0.030 / 0.040
G30     118.3          73.2                6.3 +/-    0.69       6.6 +/-    0.69  0.030 / 0.040