PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-00:12:40
G01     42.4           18.3                6.7 +/-    3.69      15.4 +/-    3.69  0.110 / 0.140
G06     178.9          31.9               10.3 +/-    1.55      17.3 +/-    1.55  0.170 / 0.160
G13     239.4          24.3                9.8 +/-    3.20      19.5 +/-    3.20  0.040 / 0.040
G15     273.0          13.2                6.9 +/-    1.90      18.0 +/-    1.90  0.040 / 0.030
G17     0.6            71.7                7.6 +/-    0.80       7.9 +/-    0.80  0.120 / 0.240
G19     267.8          67.3                7.6 +/-    0.88       8.2 +/-    0.88  0.120 / 0.200
G24     316.6          18.6                5.6 +/-    2.05      12.8 +/-    2.05  0.050 / 0.050
G28     63.6           50.9                9.8 +/-    1.66      12.2 +/-    1.66  0.050 / 0.060
G30     153.7          30.2                9.8 +/-    1.39      17.1 +/-    1.39  0.110 / 0.220