PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-17:12:50
G01     55.4           28.6                9.1 +/-    0.62      16.4 +/-    0.62  0.080 / 0.300
G06     178.0          20.5              -19.0 +/-   34.79     -41.2 +/-   34.79  0.090 / 0.290
G07     144.2          18.1               13.1 +/-    1.67      30.1 +/-    1.67  0.050 / 0.080
G11     46.3           19.9               10.4 +/-    0.89      22.9 +/-    0.89  0.060 / 0.070
G13     256.9          33.4               12.3 +/-    1.65      20.1 +/-    1.65  0.050 / 0.110
G15     291.2          15.7               10.1 +/-    3.27      24.7 +/-    3.27  0.040 / 0.100
G17     277.0          77.8               13.0 +/-    0.97      13.3 +/-    0.97  0.030 / 0.070
G19     237.3          52.3               14.5 +/-    1.62      17.8 +/-    1.62  0.030 / 0.060
G28     43.3           55.1               11.8 +/-    0.65      14.1 +/-    0.65  0.030 / 0.030
G30     146.8          47.9               13.4 +/-    0.76      17.4 +/-    0.76  0.030 / 0.040