PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-03:27:50
G01     121.1          16.2                7.4 +/-    1.55      17.8 +/-    1.55  0.040 / 0.040
G07     78.6           65.9                5.7 +/-    0.42       6.2 +/-    0.42  0.040 / 0.030
G08     45.1           31.1                2.9 +/-    0.40       4.9 +/-    0.40  0.180 / 0.240
G09     175.7          26.7                6.8 +/-    1.14      12.9 +/-    1.14  0.130 / 0.200
G11     107.5          39.2                5.6 +/-    0.95       8.3 +/-    0.95  0.090 / 0.240
G13     318.6          18.0                3.4 +/-    1.33       7.9 +/-    1.33  0.090 / 0.220
G17     199.9          24.5                5.3 +/-    1.66      10.5 +/-    1.66  0.080 / 0.170
G18     93.2           19.6                6.0 +/-    1.41      13.3 +/-    1.41  0.080 / 0.160
G28     285.2          55.0                5.8 +/-    0.99       6.9 +/-    0.99  0.030 / 0.040
G30     339.8          65.6                3.0 +/-    0.66       3.3 +/-    0.66  0.030 / 0.040