PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/03-19:27:50
G01     105.0          26.7               13.1 +/-    0.74      24.7 +/-    0.74  0.070 / 0.140
G07     109.7          57.2               12.5 +/-    0.44      14.6 +/-    0.44  0.080 / 0.130
G08     42.1           21.4                9.0 +/-    1.04      19.1 +/-    1.04  0.090 / 0.140
G09     174.8          12.2               14.0 +/-    2.14      37.1 +/-    2.14  0.090 / 0.160
G11     87.8           43.2               11.8 +/-    0.55      16.3 +/-    0.55  0.030 / 0.050
G13     308.1          29.7               10.3 +/-    1.69      18.1 +/-    1.69  0.030 / 0.040
G17     207.8          36.2               14.0 +/-    2.34      21.8 +/-    2.34  0.040 / 0.060
G18     78.6           24.6               11.9 +/-    1.22      23.4 +/-    1.22  0.040 / 0.070
G28     322.7          61.4               11.5 +/-    1.07      12.9 +/-    1.07  0.040 / 0.060
G30     41.1           78.9               11.0 +/-    0.55      11.2 +/-    0.55  0.040 / 0.050