PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-18:13:10
G03     188.9          20.3               10.8 +/-    0.88      23.6 +/-    0.88  0.050 / 0.080
G07     288.4          36.1               13.1 +/-    1.30      20.3 +/-    1.30  0.050 / 0.090
G08     146.9          25.0               14.4 +/-    1.22      28.1 +/-    1.22  0.030 / 0.050
G09     320.4          60.2               11.9 +/-    1.14      13.5 +/-    1.14  0.040 / 0.050
G16     43.1           39.7               11.4 +/-    0.92      16.7 +/-    0.92  0.030 / 0.040
G23     114.0          77.2               11.2 +/-    0.83      11.4 +/-    0.83  0.020 / 0.040
G26     43.3           11.6                9.7 +/-    3.47      26.1 +/-    3.47  0.160 / 0.270
G27     100.6          33.1               13.9 +/-    0.72      22.9 +/-    0.72  0.180 / 0.320
G30     273.4          13.7               13.0 +/-    2.28      33.3 +/-    2.28  0.070 / 0.170