PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-09:42:50
G01     60.5           30.1                4.6 +/-    1.25       8.1 +/-    1.25  0.080 / 0.150
G07     140.9          22.7                6.4 +/-    1.96      13.1 +/-    1.96  0.080 / 0.150
G11     49.5           27.2                1.6 +/-    1.85       3.1 +/-    1.85  0.070 / 0.150
G13     263.3          36.9                6.7 +/-    2.03      10.3 +/-    2.03  0.050 / 0.160
G15     295.5          16.2                5.8 +/-    1.69      14.1 +/-    1.69  0.120 / 0.310
G17     247.5          73.8                7.8 +/-    0.41       8.1 +/-    0.41  0.100 / 0.370
G18     42.8           13.7                1.0 +/-    2.60       2.6 +/-    2.60  0.110 / 0.100
G19     229.9          51.2                8.1 +/-    3.16      10.0 +/-    3.16  0.080 / 0.130
G28     18.9           60.3                4.4 +/-    1.48       5.0 +/-    1.48  0.040 / 0.040
G30     143.0          56.4                7.7 +/-    0.54       9.1 +/-    0.54  0.040 / 0.030