PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-14:58:00
G01     99.2           28.3                9.5 +/-    1.21      17.3 +/-    1.21  0.040 / 0.050
G07     117.6          48.4               10.1 +/-    0.50      13.0 +/-    0.50  0.060 / 0.050
G08     41.7           16.4                7.2 +/-    3.20      17.2 +/-    3.20  0.050 / 0.070
G11     78.9           42.9                8.7 +/-    1.03      12.1 +/-    1.03  0.040 / 0.080
G13     303.2          33.5                7.6 +/-    1.91      12.4 +/-    1.91  0.040 / 0.050
G17     208.5          42.5               10.3 +/-    0.89      14.4 +/-    0.89  0.050 / 0.060
G18     71.8           24.4                8.9 +/-    1.59      17.5 +/-    1.59  0.050 / 0.070
G19     210.2          20.1                2.0 +/-   13.06       4.4 +/-   13.06  0.070 / 0.090
G28     319.4          60.2                7.9 +/-    0.76       9.0 +/-    0.76  0.080 / 0.140
G30     72.9           78.7                9.3 +/-    0.60       9.5 +/-    0.60  0.080 / 0.150