PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/01-22:58:00
G01     62.5           31.4               12.2 +/-    0.78      20.7 +/-    0.78  0.050 / 0.090
G07     141.3          24.8               15.7 +/-    0.82      30.8 +/-    0.82  0.050 / 0.090
G11     50.4           27.3               10.3 +/-    1.96      19.2 +/-    1.96  0.030 / 0.040
G13     265.9          35.8               15.5 +/-    1.48      24.3 +/-    1.48  0.030 / 0.090
G15     295.6          16.5               11.5 +/-    2.15      27.7 +/-    2.15  0.040 / 0.060
G17     246.3          71.1               15.2 +/-    0.66      15.9 +/-    0.66  0.030 / 0.060
G18     44.2           14.6               10.0 +/-    2.06      25.1 +/-    2.06  0.060 / 0.150
G19     230.5          48.3               15.2 +/-    1.05      19.6 +/-    1.05  0.070 / 0.130
G28     32.9           57.1               12.2 +/-    0.34      14.2 +/-    0.34  0.080 / 0.190
G30     141.6          52.0               15.0 +/-    0.95      18.5 +/-    0.95  0.070 / 0.170