PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/29-03:58:10
G01     107.0          25.6                7.0 +/-    1.05      13.6 +/-    1.05  0.040 / 0.070
G07     107.0          57.9                6.2 +/-    0.80       7.2 +/-    0.80  0.050 / 0.060
G08     42.0           20.5                4.3 +/-    2.20       9.3 +/-    2.20  0.120 / 0.180
G09     175.3          14.2                6.0 +/-    0.95      15.3 +/-    0.95  0.090 / 0.180
G11     90.3           42.6                5.1 +/-    0.89       7.2 +/-    0.89  0.060 / 0.080
G13     310.4          27.6                3.5 +/-    1.79       6.4 +/-    1.79  0.070 / 0.080
G17     205.9          38.5                6.9 +/-    1.03      10.3 +/-    1.03  0.090 / 0.120
G19     209.0          14.0                4.9 +/-    2.81      12.4 +/-    2.81  0.090 / 0.110
G28     319.6          61.1                3.5 +/-    0.61       4.0 +/-    0.61  0.180 / 0.220
G30     35.9           78.1                4.8 +/-    0.69       4.9 +/-    0.69  0.160 / 0.200