PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/06-04:57:50
G01     95.7           30.2                5.2 +/-    0.67       9.2 +/-    0.67  0.030 / 0.030
G07     121.2          47.5                5.4 +/-    1.73       7.0 +/-    1.73  0.030 / 0.030
G11     72.4           40.7                4.9 +/-    0.68       7.1 +/-    0.68  0.060 / 0.120
G13     299.5          34.7                6.1 +/-    1.48       9.8 +/-    1.48  0.050 / 0.110
G17     210.1          51.5                7.8 +/-    1.07       9.7 +/-    1.07  0.120 / 0.140
G19     212.6          20.5                5.4 +/-    2.75      11.7 +/-    2.75  0.070 / 0.170
G28     335.0          61.7                4.4 +/-    0.70       4.9 +/-    0.70  0.050 / 0.070
G30     76.6           80.0                6.2 +/-    0.45       6.3 +/-    0.45  0.040 / 0.070