PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-14:27:50
G01     54.2           27.7                6.7 +/-    1.95      12.4 +/-    1.95  0.040 / 0.040
G06     178.2          19.5              -15.8 +/-   30.34     -35.3 +/-   30.34  0.040 / 0.050
G07     143.6          14.5                7.6 +/-    1.47      19.2 +/-    1.47  0.030 / 0.020
G11     46.1           20.3                6.7 +/-    2.80      14.7 +/-    2.80  0.040 / 0.020
G13     255.4          34.0               10.4 +/-    1.80      16.8 +/-    1.80  0.120 / 0.210
G15     289.1          16.2                6.9 +/-    2.23      16.6 +/-    2.23  0.130 / 0.190
G17     268.4          76.4                9.7 +/-    0.55      10.0 +/-    0.55  0.100 / 0.090
G19     237.9          56.6               10.9 +/-    2.34      12.8 +/-    2.34  0.080 / 0.100
G28     33.7           58.3                7.8 +/-    1.17       9.0 +/-    1.17  0.210 / 0.240
G30     146.7          46.4                9.0 +/-    0.38      11.9 +/-    0.38  0.300 / 0.310