PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/03-18:28:00
G01     318.4          21.1                7.1 +/-    2.54      15.3 +/-    2.54  0.040 / 0.040
G08     256.3          13.2                7.9 +/-    3.42      20.5 +/-    3.42  0.040 / 0.040
G10     82.1           50.7                8.5 +/-    0.99      10.6 +/-    0.99  0.170 / 0.330
G11     305.6          20.3                8.3 +/-    1.11      18.1 +/-    1.11  0.150 / 0.240
G14     286.6          68.3                9.6 +/-    0.56      10.3 +/-    0.56  0.040 / 0.040
G20     107.3          25.6                8.8 +/-    1.21      16.9 +/-    1.21  0.030 / 0.040
G31     175.9          42.2               10.1 +/-    0.93      14.2 +/-    0.93  0.060 / 0.060
G32     12.6           66.1                7.5 +/-    0.47       8.1 +/-    0.47  0.070 / 0.060