PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-05:13:10
G07     344.2          61.5                3.4 +/-    0.36       3.8 +/-    0.36  0.080 / 0.100
G08     87.0           52.1                5.7 +/-    1.22       7.0 +/-    1.22  0.130 / 0.110
G09     184.8          67.2                5.5 +/-    0.21       5.9 +/-    0.21  0.030 / 0.040
G11     141.4          16.5                5.3 +/-    2.42      12.6 +/-    2.42  0.030 / 0.040
G23     157.7          36.9                6.7 +/-    0.96      10.3 +/-    0.96  0.040 / 0.030
G27     49.2           27.4                2.1 +/-    1.95       4.0 +/-    1.95  0.040 / 0.040
G28     242.7          34.8                6.0 +/-    2.01       9.5 +/-    2.01  0.060 / 0.100
G30     307.0          39.3                3.4 +/-    1.47       5.0 +/-    1.47  0.050 / 0.130