PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/06-09:42:50
G01     76.3           33.3                4.2 +/-    0.76       6.9 +/-    0.76  0.030 / 0.030
G07     134.6          34.2                6.3 +/-    1.22      10.2 +/-    1.22  0.030 / 0.030
G11     56.0           32.7                2.7 +/-    0.67       4.4 +/-    0.67  0.040 / 0.060
G13     279.9          38.1                4.6 +/-    1.04       6.8 +/-    1.04  0.040 / 0.080
G15     310.0          11.8                3.0 +/-    1.13       8.0 +/-    1.13  0.080 / 0.180
G17     226.2          67.1                5.3 +/-    0.99       5.7 +/-    0.99  0.080 / 0.200
G18     51.3           19.2                2.7 +/-    0.67       6.0 +/-    0.67  0.100 / 0.110
G19     220.9          33.8                5.5 +/-    0.72       8.9 +/-    0.72  0.110 / 0.090
G28     9.0            60.6                2.1 +/-    0.51       2.3 +/-    0.51  0.070 / 0.120
G30     129.7          68.1                5.8 +/-    0.60       6.2 +/-    0.60  0.080 / 0.100