PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-18:27:50
G01     80.4           33.2               16.8 +/-    0.86      27.6 +/-    0.86  0.110 / 0.230
G07     132.3          38.6               17.5 +/-    0.91      26.1 +/-    0.91  0.090 / 0.180
G11     60.6           36.2               15.7 +/-    0.52      24.4 +/-    0.52  0.040 / 0.090
G13     284.7          37.6               18.0 +/-    1.23      27.3 +/-    1.23  0.040 / 0.070
G15     309.9          12.7               16.0 +/-    1.05      42.0 +/-    1.05  0.030 / 0.030
G17     222.1          59.0               19.4 +/-    0.80      22.2 +/-    0.80  0.030 / 0.030
G18     56.1           21.8               13.0 +/-    1.33      27.3 +/-    1.33  0.050 / 0.070
G19     219.0          32.9               18.3 +/-    1.85      30.2 +/-    1.85  0.040 / 0.050
G28     5.3            60.8               15.6 +/-    0.74      17.6 +/-    0.74  0.030 / 0.050
G30     124.7          68.9               16.6 +/-    0.59      17.7 +/-    0.59  0.040 / 0.050