PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-07:43:00
G01     121.6          14.4                5.2 +/-    1.83      13.2 +/-    1.83  0.030 / 0.030
G07     70.5           67.5                5.3 +/-    0.60       5.7 +/-    0.60  0.040 / 0.030
G08     48.3           37.6                3.5 +/-    0.86       5.3 +/-    0.86  0.130 / 0.370
G09     176.5          30.4                5.7 +/-    0.83       9.9 +/-    0.83  0.180 / 0.370
G11     115.1          38.9                7.4 +/-    1.56      11.0 +/-    1.56  0.070 / 0.110
G13     319.2          16.7                2.8 +/-    4.97       6.7 +/-    4.97  0.090 / 0.110
G17     200.5          17.7                4.0 +/-    2.31       9.3 +/-    2.31  0.120 / 0.230
G18     98.5           18.8                5.4 +/-    1.74      12.2 +/-    1.74  0.130 / 0.220
G28     275.0          49.6                5.1 +/-    2.35       6.5 +/-    2.35  0.030 / 0.030
G30     335.3          63.1                4.1 +/-    1.14       4.5 +/-    1.14  0.030 / 0.030