PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-03:27:50
G07     336.8          59.5                4.4 +/-    0.70       5.0 +/-    0.70  0.060 / 0.080
G08     93.6           51.1                6.0 +/-    1.02       7.5 +/-    1.02  0.080 / 0.090
G09     181.6          70.2                5.9 +/-    0.23       6.2 +/-    0.23  0.030 / 0.040
G11     143.8          14.4                5.3 +/-    2.78      13.3 +/-    2.78  0.050 / 0.040
G23     156.7          43.3                6.7 +/-    1.10       9.3 +/-    1.10  0.090 / 0.090
G27     56.3           33.0                3.2 +/-    1.03       5.3 +/-    1.03  0.060 / 0.090
G28     237.1          28.3                5.0 +/-    0.97       9.0 +/-    0.97  0.070 / 0.140
G30     301.5          34.1                2.9 +/-    0.95       4.7 +/-    0.95  0.070 / 0.170