PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-14:42:50
G01     108.1          25.0                9.1 +/-    0.87      17.7 +/-    0.87  0.030 / 0.040
G07     105.1          59.2               10.0 +/-    0.31      11.5 +/-    0.31  0.020 / 0.030
G08     42.0           21.0                6.7 +/-    0.57      14.4 +/-    0.57  0.060 / 0.120
G09     174.2          13.5               11.3 +/-    2.40      29.3 +/-    2.40  0.090 / 0.150
G11     90.0           42.6               10.0 +/-    0.46      13.9 +/-    0.46  0.040 / 0.060
G13     310.4          28.1                7.0 +/-    2.46      12.8 +/-    2.46  0.050 / 0.060
G17     205.5          36.3               10.2 +/-    1.16      15.7 +/-    1.16  0.030 / 0.050
G18     81.3           24.1                8.4 +/-    0.79      16.8 +/-    0.79  0.030 / 0.040
G28     315.5          60.8                8.5 +/-    0.61       9.6 +/-    0.61  0.040 / 0.070
G30     15.7           77.3                9.3 +/-    1.16       9.5 +/-    1.16  0.030 / 0.090