PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/08-22:58:10
G01     113.1          22.1               10.3 +/-    2.89      21.5 +/-    2.89  0.060 / 0.060
G07     95.4           63.0               11.7 +/-    0.42      12.9 +/-    0.42  0.040 / 0.060
G08     43.5           28.6                8.6 +/-    1.96      15.5 +/-    1.96  0.120 / 0.180
G09     176.7          20.3               11.3 +/-    0.80      24.7 +/-    0.80  0.100 / 0.150
G11     101.7          42.3               10.6 +/-    1.17      14.8 +/-    1.17  0.080 / 0.100
G13     314.4          23.9                7.0 +/-    1.22      14.0 +/-    1.22  0.090 / 0.120
G17     204.4          29.2               12.1 +/-    2.18      21.5 +/-    2.18  0.070 / 0.120
G28     306.8          59.9                9.1 +/-    0.71      10.3 +/-    0.71  0.110 / 0.190
G30     15.1           75.5               10.4 +/-    0.94      10.7 +/-    0.94  0.050 / 0.070