PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/08-02:57:40
G08     304.2          20.4                7.7 +/-    1.33      16.7 +/-    1.33  0.070 / 0.100
G10     352.5          62.2                9.9 +/-    0.41      11.0 +/-    0.41  0.060 / 0.090
G14     222.7          38.3               15.4 +/-    1.88      23.0 +/-    1.88  0.030 / 0.020
G20     52.2           56.8               11.0 +/-    0.88      12.9 +/-    0.88  0.030 / 0.040
G21     141.7          49.3               13.1 +/-    0.76      16.6 +/-    0.76  0.050 / 0.050
G24     64.8           28.7                8.6 +/-    1.60      15.5 +/-    1.60  0.050 / 0.050
G27     265.0          35.6               13.8 +/-    2.33      21.7 +/-    2.33  0.100 / 0.140
G32     231.3          58.7               12.1 +/-    1.74      13.9 +/-    1.74  0.070 / 0.140