PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/15-01:43:10
G07     330.6          57.4                2.8 +/-    0.44       3.3 +/-    0.44  0.040 / 0.050
G08     101.1          50.1                5.1 +/-    0.56       6.5 +/-    0.56  0.040 / 0.050
G09     189.6          76.1                2.7 +/-    0.58       2.8 +/-    0.58  0.030 / 0.050
G11     146.7          11.6                4.9 +/-    6.60      13.1 +/-    6.60  0.030 / 0.070
G16     45.6           11.0               -3.0 +/-    1.82      -8.1 +/-    1.82  0.140 / 0.460
G23     155.1          48.2                5.9 +/-    0.89       7.6 +/-    0.89  0.170 / 0.390
G27     61.5           35.3                2.8 +/-    0.57       4.4 +/-    0.57  0.050 / 0.080
G28     233.7          24.3                5.9 +/-    2.16      11.6 +/-    2.16  0.040 / 0.080
G30     298.0          31.3                3.1 +/-    1.38       5.2 +/-    1.38  0.130 / 0.330