PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/19-01:28:10
G10     274.6          42.4               11.3 +/-    1.19      15.8 +/-    1.19  0.080 / 0.170
G13     39.2           12.9                7.2 +/-    0.89      18.9 +/-    0.89  0.110 / 0.160
G15     54.3           45.6                8.4 +/-    0.60      11.2 +/-    0.60  0.040 / 0.040
G20     288.2          51.2                9.3 +/-    0.90      11.5 +/-    0.90  0.040 / 0.040
G21     19.4           75.3               12.0 +/-    0.54      12.3 +/-    0.54  0.100 / 0.260
G24     113.4          18.2               11.9 +/-    1.20      27.3 +/-    1.20  0.100 / 0.360
G27     315.1          23.9                8.8 +/-    1.91      17.5 +/-    1.91  0.090 / 0.070
G29     168.9          25.1               11.6 +/-    2.28      22.6 +/-    2.28  0.040 / 0.060
G32     205.0          17.0               16.8 +/-    4.51      39.8 +/-    4.51  0.040 / 0.140