PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/18-22:42:50
G01     101.7          28.2               17.0 +/-    0.98      30.9 +/-    0.98  0.100 / 0.100
G07     114.1          54.6               18.0 +/-    0.61      21.5 +/-    0.61  0.080 / 0.110
G08     42.1           19.3               13.0 +/-    1.11      29.1 +/-    1.11  0.080 / 0.110
G11     85.1           43.6               17.7 +/-    1.05      24.4 +/-    1.05  0.160 / 0.120
G13     305.7          31.2               16.2 +/-    1.44      27.8 +/-    1.44  0.050 / 0.050
G17     209.1          40.2               20.6 +/-    1.57      29.9 +/-    1.57  0.040 / 0.050
G19     210.7          17.5               26.7 +/-    2.30      62.4 +/-    2.30  0.060 / 0.070
G28     329.7          61.7               15.2 +/-    0.42      17.1 +/-    0.42  0.060 / 0.060
G30     67.8           78.3               18.0 +/-    1.16      18.3 +/-    1.16  0.040 / 0.070