PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/22-08:42:40
G01     73.1           33.1                9.4 +/-    1.01      15.4 +/-    1.01  0.040 / 0.050
G07     136.2          31.6               10.3 +/-    0.93      17.4 +/-    0.93  0.040 / 0.040
G11     54.0           30.9                6.1 +/-    1.56      10.4 +/-    1.56  0.060 / 0.110
G13     276.5          38.1                5.6 +/-    1.66       8.5 +/-    1.66  0.060 / 0.130
G15     307.3          12.9                1.5 +/-    2.20       4.0 +/-    2.20  0.070 / 0.170
G17     230.5          69.8                8.2 +/-    1.57       8.7 +/-    1.57  0.080 / 0.190
G18     49.0           17.8                3.5 +/-    0.92       8.1 +/-    0.92  0.060 / 0.100
G19     222.5          36.6                7.7 +/-    1.96      11.9 +/-    1.96  0.050 / 0.080
G28     13.3           60.2                7.5 +/-    0.98       8.5 +/-    0.98  0.070 / 0.120
G30     133.3          65.6                8.1 +/-    1.26       8.8 +/-    1.26  0.050 / 0.110