PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-01:42:50
G10     272.7          42.4               11.7 +/-    1.04      16.3 +/-    1.04  0.190 / 0.200
G13     39.6           13.7                7.7 +/-    2.60      19.8 +/-    2.60  0.120 / 0.150
G15     54.2           44.3                9.7 +/-    0.72      13.2 +/-    0.72  0.080 / 0.070
G16     276.0          10.8                8.4 +/-    1.62      22.9 +/-    1.62  0.060 / 0.060
G20     306.8          61.9               10.6 +/-    0.82      11.9 +/-    0.82  0.050 / 0.040
G21     15.2           74.2               10.4 +/-    0.51      10.7 +/-    0.51  0.050 / 0.030
G24     117.0          16.9               10.8 +/-    1.83      25.6 +/-    1.83  0.210 / 0.340
G27     316.9          21.7                7.9 +/-    1.95      16.8 +/-    1.95  0.210 / 0.330
G29     167.0          25.3               12.1 +/-    2.05      23.6 +/-    2.05  0.060 / 0.050
G32     205.3          11.6                0.8 +/-   42.41       2.2 +/-   42.41  0.040 / 0.060