PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-05:57:50
G01     68.4           31.7                3.4 +/-    0.71       5.7 +/-    0.71  0.030 / 0.030
G07     137.1          30.8                6.3 +/-    0.69      10.9 +/-    0.69  0.030 / 0.020
G11     55.0           34.1                4.6 +/-    1.38       7.4 +/-    1.38  0.130 / 0.300
G13     272.8          38.8                5.8 +/-    1.00       8.6 +/-    1.00  0.120 / 0.280
G15     300.3          16.3                2.3 +/-    1.97       5.5 +/-    1.97  0.040 / 0.050
G17     231.5          69.5                5.6 +/-    0.88       5.9 +/-    0.88  0.060 / 0.040
G19     223.1          44.5                6.1 +/-    1.93       8.3 +/-    1.93  0.030 / 0.030
G28     2.4            61.4                4.3 +/-    0.44       4.8 +/-    0.44  0.030 / 0.030
G30     136.2          65.7                6.9 +/-    0.18       7.5 +/-    0.18  0.140 / 0.080