PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-03:27:40
G07     350.3          63.2                4.7 +/-    0.42       5.2 +/-    0.42  0.100 / 0.090
G08     81.2           52.1                4.1 +/-    1.34       5.0 +/-    1.34  0.090 / 0.080
G09     183.8          63.4                7.1 +/-    0.95       7.9 +/-    0.95  0.040 / 0.040
G11     139.5          18.9                5.3 +/-    1.88      11.9 +/-    1.88  0.030 / 0.030
G23     158.5          32.4                5.8 +/-    1.18       9.7 +/-    1.18  0.150 / 0.070
G27     46.5           25.0                4.0 +/-    2.06       7.9 +/-    2.06  0.120 / 0.070
G28     246.4          37.8                8.6 +/-    1.72      12.9 +/-    1.72  0.040 / 0.030
G30     311.0          43.0                4.9 +/-    1.30       6.9 +/-    1.30  0.040 / 0.030