PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-15:58:00
G01     86.6           32.5               11.3 +/-    0.55      18.8 +/-    0.55  0.050 / 0.060
G07     128.3          43.0               12.1 +/-    0.95      16.8 +/-    0.95  0.040 / 0.060
G11     65.0           38.3                9.4 +/-    0.38      14.0 +/-    0.38  0.030 / 0.040
G13     290.9          36.9               12.0 +/-    0.60      18.4 +/-    0.60  0.030 / 0.030
G17     217.1          55.8               12.5 +/-    0.91      14.8 +/-    0.91  0.060 / 0.090
G18     60.6           23.1                9.0 +/-    0.59      18.4 +/-    0.59  0.060 / 0.090
G19     216.3          27.5               12.2 +/-    2.18      22.6 +/-    2.18  0.050 / 0.060
G28     355.1          61.5               11.2 +/-    0.89      12.5 +/-    0.89  0.040 / 0.060
G30     112.9          74.2               12.9 +/-    0.94      13.4 +/-    0.94  0.060 / 0.120