PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-13:57:50
G01     125.9          12.6               10.1 +/-    3.02      26.7 +/-    3.02  0.030 / 0.030
G07     56.8           69.4                8.1 +/-    0.61       8.6 +/-    0.61  0.040 / 0.030
G08     49.3           38.3                6.9 +/-    0.91      10.3 +/-    0.91  0.100 / 0.170
G09     176.9          33.3                9.1 +/-    1.51      15.0 +/-    1.51  0.100 / 0.180
G11     116.3          36.1                9.3 +/-    0.76      14.5 +/-    0.76  0.030 / 0.030
G13     320.7          12.9                4.9 +/-    2.94      12.8 +/-    2.94  0.020 / 0.030
G17     200.2          15.9                9.5 +/-    2.60      23.1 +/-    2.60  0.140 / 0.360
G18     102.3          17.3                9.3 +/-    1.72      21.8 +/-    1.72  0.080 / 0.340
G28     278.4          53.6                8.3 +/-    2.71      10.0 +/-    2.71  0.210 / 0.320
G30     333.7          61.2                6.8 +/-    0.80       7.7 +/-    0.80  0.190 / 0.310