PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/26-02:57:40
G01     78.8           33.3                4.1 +/-    1.03       6.7 +/-    1.03  0.030 / 0.050
G07     133.1          37.1                6.6 +/-    0.94      10.0 +/-    0.94  0.040 / 0.060
G11     60.6           36.3                4.4 +/-    0.86       6.8 +/-    0.86  0.050 / 0.070
G13     284.2          37.2                4.3 +/-    1.26       6.6 +/-    1.26  0.060 / 0.080
G15     307.6          14.1                2.3 +/-    2.27       5.9 +/-    2.27  0.100 / 0.310
G17     223.7          62.3                6.7 +/-    1.47       7.5 +/-    1.47  0.080 / 0.240
G19     219.7          36.6                7.0 +/-    1.59      10.8 +/-    1.59  0.030 / 0.060
G28     8.8            60.4                3.7 +/-    1.43       4.2 +/-    1.43  0.050 / 0.060
G30     127.3          64.3                6.3 +/-    0.30       6.9 +/-    0.30  0.030 / 0.040