PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/15-01:43:00
G07     330.0          57.2                3.8 +/-    0.55       4.4 +/-    0.55  0.030 / 0.040
G08     101.9          50.0                5.3 +/-    0.47       6.7 +/-    0.47  0.040 / 0.040
G09     190.5          76.6                4.5 +/-    0.33       4.6 +/-    0.33  0.040 / 0.040
G11     146.9          11.3                5.0 +/-    2.61      13.5 +/-    2.61  0.040 / 0.050
G16     45.5           11.4               -1.8 +/-    2.08      -4.9 +/-    2.08  0.060 / 0.060
G23     154.9          48.7                5.4 +/-    0.51       6.9 +/-    0.51  0.080 / 0.070
G27     62.0           35.5                4.0 +/-    1.14       6.4 +/-    1.14  0.230 / 0.360
G28     233.3          24.0                5.9 +/-    2.42      11.9 +/-    2.42  0.120 / 0.270
G30     297.7          31.0                4.3 +/-    1.28       7.4 +/-    1.28  0.270 / 0.270