PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/08-07:27:50
G01     76.1           33.2                5.4 +/-    0.54       8.8 +/-    0.54  0.030 / 0.040
G07     134.6          33.6                6.6 +/-    0.79      10.7 +/-    0.79  0.030 / 0.040
G11     55.8           32.5                3.5 +/-    0.76       5.8 +/-    0.76  0.050 / 0.090
G13     279.7          38.2                4.2 +/-    0.79       6.2 +/-    0.79  0.040 / 0.090
G15     308.7          12.6                2.9 +/-    2.44       7.5 +/-    2.44  0.060 / 0.100
G17     226.3          67.7                6.3 +/-    0.92       6.7 +/-    0.92  0.060 / 0.100
G18     50.7           18.7                2.4 +/-    1.36       5.5 +/-    1.36  0.070 / 0.130
G19     220.8          34.8                7.0 +/-    1.70      11.2 +/-    1.70  0.040 / 0.150
G28     8.2            60.7                3.4 +/-    0.39       3.9 +/-    0.39  0.080 / 0.190
G30     129.9          68.0                5.8 +/-    0.80       6.2 +/-    0.80  0.060 / 0.180