PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-12:43:10
G01     96.4           30.1                3.9 +/-    0.88       6.8 +/-    0.88  0.030 / 0.030
G07     120.1          50.0                4.5 +/-    0.37       5.7 +/-    0.37  0.050 / 0.040
G08     41.8           10.3                5.2 +/-    1.67      14.4 +/-    1.67  0.040 / 0.060
G11     73.9           40.9                5.1 +/-    0.36       7.3 +/-    0.36  0.040 / 0.060
G13     300.2          34.3                3.9 +/-    1.59       6.3 +/-    1.59  0.060 / 0.120
G17     210.4          49.5                4.0 +/-    1.01       5.1 +/-    1.01  0.070 / 0.120
G18     68.8           24.3                4.5 +/-    0.63       9.0 +/-    0.63  0.080 / 0.160
G19     212.7          18.9                2.4 +/-    1.29       5.5 +/-    1.29  0.080 / 0.160
G28     337.8          61.9                2.6 +/-    0.59       3.0 +/-    0.59  0.060 / 0.130
G30     72.7           80.1                3.5 +/-    0.71       3.5 +/-    0.71  0.050 / 0.120