PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-20:28:00
G01     38.6           12.4                8.4 +/-    1.62      22.3 +/-    1.62  0.110 / 0.310
G02     199.3          12.4               12.6 +/-   11.34      33.2 +/-   11.34  0.130 / 0.370
G06     175.1          42.3               14.3 +/-    0.95      20.1 +/-    0.95  0.040 / 0.040
G13     232.9          19.4               13.5 +/-    1.95      30.2 +/-    1.95  0.030 / 0.030
G15     265.9          10.6               12.3 +/-    1.35      33.8 +/-    1.35  0.040 / 0.080
G17     10.1           66.9               10.2 +/-    1.62      11.0 +/-    1.62  0.050 / 0.070
G19     292.5          71.2               13.3 +/-    0.83      13.9 +/-    0.83  0.120 / 0.200
G24     314.3          23.5               10.4 +/-    2.61      21.0 +/-    2.61  0.120 / 0.200
G28     72.9           48.2               11.7 +/-    0.84      15.1 +/-    0.84  0.070 / 0.090
G30     155.0          20.9               11.7 +/-    2.44      25.1 +/-    2.44  0.060 / 0.070