PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-14:43:00
G01     115.2          20.7               12.0 +/-    1.59      25.9 +/-    1.59  0.040 / 0.040
G07     91.0           64.2                9.1 +/-    0.91      10.0 +/-    0.91  0.030 / 0.040
G08     43.4           27.6                7.0 +/-    1.56      13.0 +/-    1.56  0.120 / 0.170
G09     175.5          20.4               11.7 +/-    0.96      25.4 +/-    0.96  0.120 / 0.130
G11     100.5          41.4               10.3 +/-    1.20      14.6 +/-    1.20  0.040 / 0.070
G13     315.3          22.9                6.8 +/-    1.44      14.0 +/-    1.44  0.050 / 0.060
G17     203.0          28.6               11.7 +/-    2.21      21.1 +/-    2.21  0.030 / 0.040
G18     89.4           22.4                9.0 +/-    0.92      18.8 +/-    0.92  0.030 / 0.040
G28     301.0          58.9                8.7 +/-    0.73      10.0 +/-    0.73  0.040 / 0.070
G30     354.1          72.0                9.2 +/-    0.92       9.7 +/-    0.92  0.040 / 0.080