PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/27-18:12:50
G01     93.3           31.1               14.3 +/-    1.03      24.4 +/-    1.03  0.140 / 0.350
G07     122.9          48.2               15.5 +/-    0.70      20.0 +/-    0.70  0.140 / 0.340
G08     42.2           11.3               10.4 +/-    3.82      28.3 +/-    3.82  0.040 / 0.060
G11     72.5           41.2               14.0 +/-    0.67      19.9 +/-    0.67  0.030 / 0.070
G13     297.6          35.0               15.3 +/-    0.95      24.3 +/-    0.95  0.030 / 0.030
G17     213.2          48.2               17.2 +/-    0.75      22.2 +/-    0.75  0.030 / 0.030
G18     66.8           24.4               12.2 +/-    1.13      24.1 +/-    1.13  0.040 / 0.060
G19     213.7          23.0               18.1 +/-    2.49      37.0 +/-    2.49  0.030 / 0.050
G28     344.2          61.9               12.4 +/-    0.68      13.8 +/-    0.68  0.040 / 0.070
G30     95.1           77.3               14.8 +/-    0.79      15.2 +/-    0.79  0.030 / 0.060