PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/01-04:58:00
G01     319.9          16.4               -4.5 +/-   35.18     -10.8 +/-   35.18  0.170 / 0.310
G08     262.5          15.0                9.4 +/-    1.22      23.4 +/-    1.22  0.180 / 0.380
G10     75.8           53.5                7.0 +/-    0.71       8.5 +/-    0.71  0.040 / 0.040
G11     305.9          21.3                6.2 +/-    2.10      13.3 +/-    2.10  0.040 / 0.030
G14     285.7          69.9                6.8 +/-    1.17       7.2 +/-    1.17  0.290 / 0.440
G18     307.1          39.0                5.4 +/-    1.37       8.0 +/-    1.37  0.200 / 0.340
G20     102.7          31.5                5.3 +/-    0.95       9.1 +/-    0.95  0.060 / 0.040
G27     226.9          11.3                9.2 +/-    1.57      25.0 +/-    1.57  0.060 / 0.050
G31     175.6          39.3                7.1 +/-    1.48      10.5 +/-    1.48  0.050 / 0.090
G32     355.1          70.8                6.3 +/-    0.73       6.6 +/-    0.73  0.080 / 0.080